Leo M. Christensen Papers
00174

Summary Information

Repository: Michigan State University Archives and Historical Collections
Creator: Christensen, Leo Martin, 1898-
Title: Leo M. Christensen papers
ID: 00174
Date [bulk]: Bulk, 1864-1880
Date [inclusive]: 1837-1972
Extent: 21.0 Cubic feet
Language: English

Preferred Citation

Researchers wishing to cite this collection should include the following information: "Item title, Collection title, Collection Identifier, Michigan State University Archives & Historical Collections, East Lansing, Michigan."

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Biographical Note

Leo M. Christensen was born November 5, 1898 in Dow City, Iowa. His father was a Danish immigrant who fled to Nebraska to avoid conscription. Christensen's mother was a Dow City native, but had moved to Nebraska with her family's ranching operations. Though Leo was born in Iowa, the Christensen Family moved permanently to Kearney, Nebraska when he was nine years of age. In Kearney, Leo's father ran the shop at the local Boy's Reformatory, where his mother was the chief of the kitchen. Leo Christensen was employed in a drug store while attending Kearney High School, and stayed on briefly after graduating in 1917. After this he served briefly (less than a year) in the Army during World War I, but did not serve overseas.

Against his parents' wishes, Leo started at Iowa State College in 1918 where he received a B.S. in chemical engineering in 1923. He pursued his Ph.D. at Iowa State at Ames, receiving the degree in chemistry with a minor in bacteriology in 1926. He studied for this degree under Ellis Fulmer.

Leo Christensen married Eva Patterson on June 8, 1926. The Patterson family owned a farm near the Boy's Reformatory in Kearney, so Eva and Leo grew up together, meeting on the horse drawn school wagon.

In 1926, Christensen took a position as a biochemist for the Commercial Solvents Corporation of Terre Haute, Indiana. There his work was predominately experimental and focused on developing and refining methods to produce solvents by fermentation. His position was terminated with the closing of the plant at the beginning of the Depression in 1930. From 1931 to 1935 Christensen was on the chemistry faculty at Iowa State, resigning that position to become the Western Representative of the Chemical Foundation (later named the Chemical Foundation of Kansas). Sometime in 1936, Christensen moved within the company to become vice president and general manager of the Atchison Agrol Co., a subsidiary of the Chemical Foundation. In 1937, he is noted to have possibly been the secretary-treasurer of the Chemical Foundation as well as the director of a project at Atchinson, developing the "mold-bran method" for fermenting alcohol, and the production of commercial alcohol from farm products.

In December 1938, Christensen resigned from what had become the National Agrol Association and moved his family from Kansas to a home in Nebraska that Eva had purchased from her great grandmother. Eva and their three children - James, Martha, and Richard - lived there for two years.

Christensen chaired the Department of Agricultural Chemistry at the University of Idaho from 1939 to 1941 where he had hoped to revive the chemurgic movement, but was unsuccessful. In the winter of 1941, he returned to Nebraska to head the Department of Chemurgy at the University of Nebraska. The University of Nebraska Board of Regents appointed him research executive for the chemurgy project established and funded by recent action of the state legislature (see copy of Leg. Bill No. 462/Gilette Bill in papers). In 1945, he resigned in protest when the Board of Regents cut from the project's operating budget amounts Christensen considered essential to the continuation of his work. Specifically, he desired to build a small pilot plant for the processing of safflower, sesame, castor, and perilla in order to continue economic research gathered in the past four years' study of oil seeds. His resignation caused quite a stir in Nebraska, as well across the region, specifically in regards to the chemurgic movement.

During this time he helped to establish a safflower processing company at Morrill, Nevada, was vice-president of a Colorado solvents firm, and did consulting work at an Omaha alcohol plant and for the Farm Crops Processing Corp. In January 1945, he became a full-time consultant to the Farm Crops Processing Corp. According to James Christensen, his father made "a considerable amount of money" on war-time alcohol production and invested a large amount in the Gateway Co., a chemurgic company in Lincoln. Until 1951 Christensen was involved in numerous chemurgic projects and industries, holding numerous titles including director and vice president, Gateway Co., Red Cloud and Omaha, Nebraska; director and vice president Amboy Prod. Co., Red Cloud, Nebraska; director of the National Agrol Co. of Detroit, Michigan; and, director and vice president of Western Solvents Corp. in Longmont, Colorado. In 1951, the Gateway Company folded and Christensen was unemployed.

On April 30, 1952, Christensen was appointed the executive director of the Committee of 52 (which became the Omaha Industrial Foundation in 1954). This group was established to cooperate with other agencies in promoting the development and advancement of industrial economy in the Omaha area. In its first year of work the organization developed a planned industrial district southwest of Omaha and located $20 million of new factories in the district. Christensen allowed his post as director to expire on December 31, 1954, publicly stating a desire to resume a private engineering practice. After leaving, however, Christensen suffered from depression and found it difficult to continue his work. He died at the age of 56, on February 10, 1955, of a heart ailment in Kearney, near his farm in Miller, Nebraska.

Leo M. Christensen was, by profession and personal passion, a chemurgist. A chemurgist is a practitioner of chemurgy, or, a branch of chemistry that deals with the industrial application of organic raw materials - particularly those from farm products. William J. Hale (see collection 176) used the term "chemurgist" in the beginning of his 1934 text Farm Chemurgic, to describe the use and potential benefit from the use of organic materials - notably farm and agricultural products - for industrial applications. It was not considered by many scientific professionals of the day to be a standard term for describing industrial chemistry from organic matter. By the late 1960s, "biochemical engineering" replaced "chemurgy" as the label used to describe natural product chemistry with industrial applications.

*This brief biography was written largely with the assistance and research materials of David Wright and was supplemented by information gleaned from the scrapbooks of newsclippings found in this collection.

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Scope and Contents note

I. PERSONAL MATERIALS. 0.5 cubic feet

Materials largely from Leo Christensen’s high school and college days. Includes commencement programs, college handbook, banquet and event programs, report cards, papers, valentines, Christmas cards, fraternal/honorary organizational materials, as well as the wedding invitation to Eva (Patterson) and Leo Christensen’s wedding.

Arranged largely chronologically.

II. CORRESPONDENCE. 4.0 cubic feet

This series is broken down into two subgroups: personal and professional. Personal correspondence runs 1918-1939, 1950-1959, n.d. The majority of the personal correspondence contains the courtship letters between Eva and Leo while she taught graded school in Nebraska while he pursued further education in Iowa. Their correspondence continues through their early years of marriage and the birth of children while Leo traveled on work-related concerns. Other personal correspondence involves various extended family members and college friends of Leo. Professional correspondence deals solely with Leo’s Chemurgic consulting and investment interests. It spans 1940-1955, 1959.

Both the personal and professional subgroups are arranged first alphabetically by correspondent, then chronologically.

III. NOTEBOOKS. 3.5 cubic feet

Research notebooks of Christensen. The dates of the materials found span from his college years through the twilight of his career. The majority of the work centers on 1920-1940. Topics cover a wide range of chemurgic subjects, but emphasis is given to the topics of alcohol and fermentation. Due to the deteriorated state, some of the materials have been removed from their original notebooks.

Arranged alphabetically.

IV. PUBLISHED MATERIALS. 7.0 cubic feet

Articles and excerpts of larger works on various chemurgic subject areas. The series is further divided into the following subject areas: Agricultural crops; Agricultural Products and Processing Operations; Alcohol-Gasoline; Chemical Uses of Agricultural Products; Chemistry and Chemical Engineering; Christensen, Leo; Congressional Hearings; Enzymatic Processes; Fermentation Processes; General; Industrial Plant Design; Industrial Alcohol; Memorandum; Microorganisms; Synthetic Rubber.

The subgroup “Christensen, Leo,” contains publications where he was the sole or principal author. Other materials within various subgroups in the series may contain materials written by Christensen as a secondary author or researcher. All subgroup materials were collected to aid in Christensen’s own work, with the dominant subject area being alcohol-gasoline.

Arranged alphabetically by subgroup then alphabetically by publication title within each subgroup.

V. PATENT MATERIALS. 3.0 cubic feet

A collection of summaries, applications, forms, correspondence and other related materials for patents held in fields and processes in relation to activity within the Chemurgic movement. Some of the materials relate to patents applied for, rejected and held by Christensen in both his individual research and commercial consulting work. Christensen collected patent materials for many processes held by researchers world-wide.

Arranged alphabetically.

VI. REPORTS. 0.5 cubic feet

Miscellaneous published and unpublished reports on various Chemurgic subjects, including farm industrial companies with which Christensen had an interest.

Arranged alphabetically.

VII. MANUSCRIPTS AND DRAFT MANUSCRIPTS. 6 Folders

Various drafts of materials authored by Christensen, dated in the late 1940s.

Arranged alphabetically.

VIII. GENERAL SUBJECTS. 2.0 cubic feet

Files of materials not identified by content for placement in other series. Subjects vary and relate to subjects within other series, sometimes abstractly. Of interest is a 13 folder set of congressional hearings materials on industrial alcohol and synthetic rubber. Collection of theses by other students of chemurgy is noteworthy.

Arranged alphabetically by folder title.

IX. [MISCELLANEOUS]. 0.25 cubic feet

An artificial series created by the archivist to place stray and loose materials not readily identifiable with other series materials.

Arranged alphabetically.

X. FARM CROPS PROCESSING CO. 5 folders

A notebook containing the business function of the Farm Crops Processing Co., an enterprise in which Christensen had an interest. Due to the deteriorated condition of the notebook, the materials have been removed and placed into five consecutive folders maintaining the original order of the notebook as it came to the archives.

XI. AUDIO-VISUAL MATERIALS. 5 folders

Photographic images of Christensen, his wife, his children, his cats, and unidentified individuals.

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Organization of the Papers

This collection is organized into 11 series

I. Personal Materials
II. Correspondence
III. Notebooks
IV. Published Materials
V. Patent Materials
VI. Reports
VII. Manuscripts and Draft Manuscripts
VIII. General Subjects
IX. [Miscellaneous]
X. Farm Crops Processing. Co.
XI. Audio-Visual Materials

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Administrative Information

Publication Information

Michigan State University Archives and Historical Collections June 2001

Conrad Hall
888 Wilson Road, Room 101
East Lansing , MI, 48824
517-355-2330
archives@msu.edu

Revision Description

March 2012

Conditions Governing Access

Collection is open for research.

Legal Status

Conditions Governing Use

Permission to publish material from this collection must be obtained from University Archives & Historical Collections, Michigan State University.

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Related Materials

Related Archival Materials

See also William J. Hale papers, 1906-1959 (00176) at University Archives & Historical Collections, Michigan State University, East Lansing, Michigan.

See also Farm Chemurgic Council records, 1909-1983 (00177) at University Archives & Historical Collections, Michigan State University, East Lansing, Michigan.

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Controlled Access Headings

Corporate Name(s)

Iowa State College.

Genre(s)

Letters (correspondence)
Manuscripts
Notebooks
Patents
Photographs
Publications
Reports
Scrapbooks

Personal Name(s)

Christensen, Leo Martin, 1898-
Wright, David E.

Subject(s)

Agricultural chemistry
Chemurgy

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Collection Inventory

I. Personal Materials Scope and Contents note Materials largely from Leo Christensen's high school and college days. Includes commencement programs, college handbook, banquet and event programs, report cards, papers, valentines, Christmas cards, fraternal/honorary organizational materials, as well as the wedding invitation to Eva (Patterson) and Leo Christensen's wedding. Arranged largely chronologically.
	Box	Folder
[Christensen Articles sent to Eva] -- 1925	1	1
Christmas Card	1	2
Day Planner -- 1953	1	3
Day Planner -- 1955	1	4
Kearney H.S. Commencement Class of 1920 (Eva Patterson)	1	5
Iowa State College
	Box	Folder
Commencement Materials (Eva's Copies) -- 1923	1	6
Commencement Program -- 1923	1	7
Commencement Program -- 1923	1	8
Commencement Program (Full Size Program) -- 1923	1	9
Graduate College Handbook -- 1922	1	10
Phi Lambda Upsilon Initiation and Banquet Program -- May 22, 1923	1	11
Tau Beta P. Initiation Banquet Program -- November 21, 1922	1	12
Kearney H.S.
	Box	Folder
Class of 1917 Bulletin -- 1921	1	13
Junior - Senior Custom Burial Program -- April 25, 1917	1	14
Leo Christensen Report Cards [Grades 10-12]	1	15
Senior Thesis - "The Chemical Composition of Our Foods" by Leo Christensen -- 1917	1	16
	Box	Folder
Magazine Subscription Renewal Forms -- 1936	1	17
[Misc. Activities and Programs] -- 1916, 1917, undated	1	18
[Miscellaneous] -- 1918, 1923-1924, undated	1	19
[Miscellaneous] -- undated	1	20
[Misc. School Papers] -- undated	1	21
Phi Lambda Upsilon - Constitution -- undated	1	22
Tau Beta Pi - Constitution and By-Laws (2 Copies) -- 1922	1	23
Valentines	1	24
Wedding Invitation of Eva Patterson and Leo Christensen -- 1926	1	25
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II. Correspondence Scope and Contents note This series is broken down into two subgroups: personal and professional. Personal correspondence runs 1918-1939, 1950-1959, n.d. The majority of the personal correspondence contains the courtship letters between Eva and Leo while she taught graded school in Nebraska while he pursued further education in Iowa. Their correspondence continues through their early years of marriage and the birth of children while Leo traveled on work-related concerns. Other personal correspondence involves various extended family members and college friends of Leo. Professional correspondence deals solely with Leo's Chemurgic consulting and investment interests. It spans 1940-1955, 1959. Both the personal and professional subgroups are arranged first alphabetically by correspondent, then chronologically.
Personal
Eva to Leo
	Box	Folder
1918	1	26
1919	1	27
1920
	Box	Folder
January	1	28
February	1	29
March	1	30
April	1	31
May	1	32
September	1	33
October	1	34
November	1	35
December	1	36
1921
	Box	Folder
January	1	37
February	1	38
March	1	39
April	1	40
May	1	41
June	1	42
September, October, November	1	43
1922
	Box	Folder
February, March, April	1	44
May - June	1	45
September	1	46
October	1	47
November	1	48
December	1	49
1923
	Box	Folder
January	1	50
February	1	51
March	1	52
April	1	53
May	1	54
June	1	55
July	1	56
August	1	57
September	1	58
October	1	59
November	1	60
December	1	61
1924
	Box	Folder
January	2	1
February	2	2
March	2	3
April	2	4
May	2	5
June	2	6
July - August	2	7
September, October	2	8
November, December	2	9
1925
	Box	Folder
January	2	10
February	2	11
March	2	12
April	2	13
May	2	14
June	2	15
July	2	16
August	2	17
September	2	18
October	2	19
November	2	20
December	2	21
		Box
1926		2
	Box	Folder
January	2	22
February	2	23
March	2	24
April	2	25
May	2	26
June	2	27
	Box	Folder
1930	2	28
Undated	2	29
Leo to Eva
1918
	Box	Folder
February	2	30
July	2	31
September	2	32
October	2	33
November	2	34
December	2	35
1919
	Box	Folder
January	3	1
February	3	2
September	3	3
October	3	4
November	3	5
December	3	6
1920
	Box	Folder
January	3	7
February	3	8
March	3	9
April	3	10
May	3	11
June	3	12
September	3	13
October	3	14
November	3	15
December	3	16
1921
	Box	Folder
January	3	17
February	3	18
March	3	19
April	3	20
May	3	21
June	3	22
August	3	23
September	3	24
October	3	25
November	3	26
December	3	27
1922
	Box	Folder
January	3	28
February	3	29
March	3	30
April	3	31
May	3	32
June	3	33
September	3	34
October	3	35
November	3	36
December	3	37
1923
	Box	Folder
January	3	38
February	3	39
March	3	40
April	3	41
May	3	42
June	3	43
July	3	44
August	3	45
September	3	46
October	3	47
November	3	48
December	3	49
1924
	Box	Folder
January	3	50
February	3	51
March	3	52
April	3	53
May	3	54
June	3	55
July	3	56
August	3	57
September	3	58
October	3	59
November	3	60
December	3	61
1925
	Box	Folder
January	3	62
February	3	63
March	3	64
April	3	65
May	3	66
June	3	67
July	3	68
August	3	69
September	4	1
October	4	2
November	4	3
December	4	4
1926
	Box	Folder
January	4	5
February	4	6
March	4	7
April	4	8
May	4	9
June	4	10
	Box	Folder
1927 - November	4	11
1929 - May, June, September	4	12
1930
	Box	Folder
June	4	13
July	4	14
	Box	Folder
Undated	4	15-23
Envelopes -- 1918, 1923, 1924	4	24
	Box	Folder
Leo to Family -- 1919	4	25
Family Members to Leo
	Box	Folder
1918	4	26
1919	4	27
1920	4	28
1921	4	29
1922	4	30
1923	4	31
1924	4	32
1925	4	33
1926	4	34
1930s	4	35
1950s, undated	4	36
	Box	Folder
Frederick Keeney to Leo -- 1919	4	37
Iowa State College to Leo -- 1921 - 1923	4	38
Miscellaneous to Leo -- 1919, 1923, 1924	4	39
Miscellaneous to Leo -- 1919, 1920, 1923, 1930, undated	4	40
From Lorre J. Oertel -- 1922-1923	4	41
Western Union Telegrams -- 1930	4	42
		Box
Professional		4
	Box	Folder
1935, 1936, 1938, 1939	4	43
1940	4	44
1941	4	45
1942	4	46
1943	4	47
1946, 1949	4	48
1950 - 1952	4	49
1953	4	50
1954	4	51
January 1959	4	52
Brockman-Garcia -- 1952	4	53
Farm Crops Processing Corporation
	Box	Folder
1943	4	54
1944 - January - February	4	55
1944 - March - April	4	56
1944 - May - June	4	57
1944 - July	4	58
1944 - August - September	5	1
1944 - October - December	5	2
1945 - March - July, October	5	3
1947 - January - February	5	4
	Box	Folder
Garcia, Carlos S. -- 1952	5	5
Minnesota Correspondence re: Power Alcohol -- 1933 - 1934	5	6
Miscellaneous 1954	17	230
Ollea, Dante E. -- 1936	5	7
Pritehard Co. -- 1943 - 1944	5	8-9
Safflower -- 1947 - 1955	5	10-11
Western Solvents Correspondence -- 1948 - 1953	5	12
Undated	5	13
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III. Notebooks Scope and Contents note Research notebooks of Christensen. The dates of the materials found span from his college years through the twilight of his career. The majority of the work centers on 1920-1940. Topics cover a wide range of chemurgic subjects, but emphasis is given to the topics of alcohol and fermentation. Due to the deteriorated state, some of the materials have been removed from their original notebooks. Arranged alphabetically.
	Box	Folder
Alcohol -- 1938, 1942 - 1943	5	14-15
Alcohol in Motor Fuel - Abstract/Scientific Literature 1917 - 1940, 1948	5	16-18
Alcohol Manufacture - Cost Estimates -- 1936, 1939 - 1940, undated	5	19
Alcohol Manufacture - Regulations -- 1928, 1930 - 1935, undated	5	20
Analytical Methods -- 1924 - 1930, 1932 - 1933, 1936, undated	5	21
Bureau of Mines Cooperative Fuel Research Reports -- 1935 - 1938, 1940	5	22
Butanol Fermentation Literature -- 1912, 1919 - 1933, 1939, undated	6	1
Butanol Fermentation - Unpublished Reports -- 1927 - 1928, 1932, undated	6	2
Butyl Acetonic Fermentation of Xylose -- 1928 -1934	6	3
Butylene Glycol-Ethanol -- November 18, 1940 - January 1941	6	4
General Subjects - Chemical and Metallurgical Flow Sheets of Process Industries -- 1934	6	5
Chemical Engineering - Lab Reports -- 1922 - 1923, undated	6	6
Chemurgy Project - NI -- September 1, 1942 - September 1946	6	7
Complete Fermenter Record -- 1938	6	8
Farm Cooperatives - FCA Bulletins -- 1939 - 1940	6	9
[Fermentation] -- 1909, 1919 - 1940	6	10-11
[Fermentation by-products] -- 1926, 1939, 1944, undated	6	12
Fermentation of Cellulose-1 -- 1928 - 1929	6	13
Fermentation of Cellulose -- 1929, undated	6	14
Food Dehydration - Misc. Reports -- 1942	6	14a
Girasole Alcohol and Levulose -- 1929, 1931 - 1934, 1937, undated	6	15
Glycerol Glycols -- 1919 - 1922, 1924, 1929, 1931 - 1934, 1940 - 1945	6	16
Idaho Falls - Fermenter Reports -- 1939 - 1941	6	17
Idaho Falls Substation Laboratory Notes -- October 1939 - June 1940	6	18
Ivan Baumgart Research -- 1943	6	19
[Lab Work] -- 1934, undated	6	20-21
[Liquid Fuel] -- 1907, 1915 - 1933	7	2-3
[Mechanical Engineering] -- 1934	7	4
Medicinal Crops and Essential Oils -- 1940	7	5
[Miscellaneous] -- 1955	7	6
[Miscellaneous Lab Notes] -- September 1924 - December 1924	7	7
Motor Fuel State Regulations -- 1931 - 1938	7	8
M-I - Ethanol Production -- 1936 - 1940	7	9
[Mold Bran Production] -- 1948, undated	7	10
Miscellaneous Unpublished Papers -- 1933 - 1939, undated	7	11
M-3 - Oil Crops, Butylene Glycol, Miscellaneous -- 1940 - 1946	7	12
M-4 - Ethanol Production and Grain Sorghum Starch -- 1941	7	13
No. AMC I [Chemistry] -- 1931-1934	7	14
No. 2 - Motor Fuel -- 1933-1934	7	15
Non-Volatile Acid -- 1919-1929	7	16
[Oils] -- undated	7	17
Omaha Industrial Foundation -- 1944 - 1945, 1949, 1952 - 1954	7	18
Organic Chemistry - Lecture Notes and Papers -- 1924, undated	7	19
Power Alcohol
	Box	Folder
A.L. Teodoro -- 1931 - 1936, 1939 - 1941	8	1
use in England and Germany - A.W. Hickson -- 1934 - 1936, undated	8	2
Idaho - Research Reports -- 1939, undated	8	3
Literature Before 1933 -- 1908, 1911 - 1913, 1920 - 1933, 1937	8	4
Idaho - Research Reports - 1936, 1939 -- 1935 - 1938, 1940, undated	8	5
USA Bulletins -- 1934, 1940	8	6
Miscellaneous Economic Data -- 1914, 1921, 1926, 1930 - 1931, 1933 - 1934, 1940, undated	8	7-8
and Farm Relief - Original and Revised Manuscripts -- 1934, undated	8	9-11
Literature Since 1933 -- 1933, 1934, 1944, undated	8	12
	Box	Folder
Patents, Alcohol Manufacture -- 1867, 1870, 1885, 1894, 1900 - 1903, 1908 - 1911, 1914, 1916, 1922, 1928, 1930, 1933, 1935 - 1936, 1938, 1940, 1942	8	13
Power Alcohol Research Outlines for USDA -- 1934 - 1936, undated	8	14-15
Raw Materials - Corn -- 1925 - 1926, 1930 - 1931, 1948	8	16
Raw Materials - Sorghums -- 1928, 1933, 1934, 1940	8	17
Research for Union Solvents -- 1931	8	18
762 -- 1919, 1925, 1927, 1932, undated	9	1
[Soybeans] -- 1922, 1926, 1933 - 1936, undated	9	2
Sweet Potato Starch Alcohol -- 1939 - 1940	9	3
Syrup from Potatoes, Wheat and Corn -- 1945 - 1946	9	4
The Chemical Foundation -- 1935, 1937, 1940	9	5-6
"The Fundamentals of Alcohol Manufacture, General and Scientific" - Translation from "Handbuch der Spiritusfabrikation"	9	7
Tung Oil -- 1930, 1935, 1936, undated	9	8
[Unfinished Correspondence] -- undated	9	9
Union Solvents Corporation -- 1931-1933	9	10
Vegetable Oils -- 1930, 1937, 1939 - 1941, 1944, undated	9	11
Volatile Acids -- 1918, 1924, 1926, 1929	9	12
War Production Board Reports - Wheat Mold Bran -- 1943 - 1944	9	13
[Work Journal]
	Box	Folder
1945 - 1952	9	14
1949, undated	9	15
Christensen -- 1932	9	16
Fulmer -- 1932	9	17
Hixon -- 1932	10	1
Analysis of Nutritional Content in about 15 Crop Types -- undated	10	2
[Unknown] -- 1932	10	3
	Box	Folder
Xylan, Xylose and Furfural -- 1928 - 1929, 1932, 1934, undated	10	4
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IV. Published Materials Scope and Contents note Articles and excerpts of larger works on various chemurgic subject areas. The series is further divided into the following subject areas: Agricultural crops; Agricultural Products and Processing Operations; Alcohol-Gasoline; Chemical Uses of Agricultural Products; Chemistry and Chemical Engineering; Christensen, Leo; Congressional Hearings; Enzymatic Processes; Fermentation Processes; General; Industrial Plant Design; Industrial Alcohol; Memorandum; Microorganisms; Synthetic Rubber. The subgroup "Christensen, Leo," contains publications where he was the sole or principal author. Other materials within various subgroups in the series may contain materials written by Christensen as a secondary author or researcher. All subgroup materials were collected to aid in Christensen's own work, with the dominant subject area being alcohol-gasoline. Arranged alphabetically by subgroup then alphabetically by publication title within each subgroup.
Agricultural Crops
	Box	Folder
"A Pattern for Cottonbelt Agriculture" -- 1939	10	5
"Apple Utilization Investigations" -- 1938	10	6
"Castor Barriers" -- 1938	10	7
"Chemical Composition of Sugarcane Juice as Affected by Fertilizers" -- 1941	10	8
"Cellulose from Cornstalks" -- 1929	10	9
"Chemical Examination of the Tissue of the Cornstalk" -- 1929	10	10
"Commercial Soybean Problems In the South" -- 1939	10	11
"Corn Yesterday Today and Tomorrow" -- [undated]	10	12
"Crop Facts" -- 1954	10	13
"Establishment of Bermuda Grass from Seed in Nurseries" -- 1941	10	14
"Experiments with Safflower in Western Nebraska" -- 1945	10	15
"Federal Sugar Policies" -- 1939	10	16
"Grain Sorghum in the Great Plains Economy" -- 1952	10	17
"Industrial Survey of Safflower" -- 1951	10	18
"Michigan Sugar Beets in 1933" -- 1934	10	19
"Physical and Chemical Characteristics of Hemp Stalks and Seed Flax Straw" -- 1929	10	20
"Potash - The Farmer's Basic Need" -- 1939	10	21
"Ramie, A Fiber Crop" -- 1939	10	22
"The Fixation of Nitrogen by Leguminous Plants Under Bacteriological Controlled Conditions" -- 1931	10	23
"Safflower - A Potential Oilseed Crop in the Western States" -- [1947 of later]	10	24
"Rapid Determination of Soybean - Oil Content and of Iodine Number of Soybean Oil" -- 1940	10	25
"Safflower Oil" -- 1950	10	26
"Safflower Production in the Western Part of the Northern Great Plains" -- 1950	10	27
"Sorghums for Kansas" -- 1942	10	28
"Studies of the Culture and Certain Varieties of the Jerusalem Artichoke" -- 1936	10	29
"Sugar Beet Costs and Returns" -- 1940	10	30
"The Agricultural and Industrial Demand for Corn" -- 1935	10	31
"The Electodeposition of Cellulose" -- 1930	10	32
"The Licorice Root in Industry" -- 1929	10	33
"The Story of Soybean Oil" -- 1939	10	34
"The Story of Soybean Oil Meal" -- 1939	10	35
"The Trend of Soybean Utilization Southern Farms" -- 1939	10	36
"Tung Oil - A National Asset" -- 1939	10	37
"Value of Soybeans in Arkansas Rotation" -- 1939	10	38
"We Who Grow Soybeans" -- 1939	10	39
Agricultural Products and Processing Operations
	Box	Folder
"Alcohol Extraction Improves Soya Flour Flavor and Color" -- [undated]	10	40
"Action of Sodium Hydroxide on Cellulose Under High Pressure" -- 1927	10	41
"Abstract - Semi-Commercial Demonstration Work In Uses of Southern Woods for Pulp and Paper" -- 1939	10	42
"A Method for the Manufacture of Levulose" -- 1924	10	43
"Can Paper Be Made Profitably From Cornstalks or Straw?" -- 1929	10	44
"Cellulose from Cornstalks" -- 1929	10	45
"Cellulose Resources II - Cellulose from Field Crops" -- 1928	10	46
"Cellulose Resources III - Cost of Field Crops for Cellulose" -- 1928	10	47
"Chemical Engineers of Asheville Discuss Cellulose Technology" -- 1929	10	48
"Chemical Products of Cellulose" -- 1925	10	49
"Chemistry of Pulping Flax Straw Hydrolysis with Sodium Sulfite" -- 1927	10	50
"Clarification of Starch Conversion Liquors in manufacture of Corn Sugar and Corn Syrup" -- 1927	10	51
"Cornstalks as Industrial Raw Material" -- 1930	10	102
"Economic and Industrial Prospects of Xylose" -- 1930	10	52
"Experimental Studies on the Destructive Distillation of Corncobs" -- 1931	10	53
"Experimental Studies on the Production of Insulating Board from Cornstalks" -- 1931	10	54
"Greater Industrial Development of Iowa by More Intensive Utilization of Agricultural Waste" -- 1927	10	55
"Insulating Board from Straw" -- 1930	10	56
"Java Citronella Oil" -- 1942	10	57
"Maizewood Cornstalk Insulation Board" -- 1930	10	58
"Manufacture and Uses of Refined Dextrose" -- 1924	10	59
"Manufacture of Chemical Cotton" -- 1930	10	60
"Molasses as a Source of Vitamin B" -- 1925	10	61
"Nature of the Neutralization of the Neutralization Precipitate and Its Effect on the Recovery of Milk Sugar from Grain-Curd-Casien Whey" -- 1928	11	13
"Paper Products from Wheat Straw" -- 1951	10	62
"Paper Pulp from Logging Waste in the Douglas Fir Region" -- 1928	10	63
"Potash from Kelp VIII - Certain Equilibria Used in the Manufacture of Potassium Chloride from Kelp Brines" -- 1924	10	64
"Pure Hydrocarbons from Petroleum" -- 1926	10	66
"The Color Problem in Sucrose Manufacture" -- 1947	10	67
"Semi-Commercial Production of Xylose" -- 1930	10	68
"Separation of Starch and Gluten (IV) Application of a Rapid Process to Flours from Various Grades and Types of Wheat" -- 1946	10	69
"Specifications for Cellulose for Use in the Manufacture of Smokeless Powder" -- 1929	10	70
"Studies on the Alcoholic Extraction of Soya Bean Oil" -- [undated]	10	71
"Subjection of Molasses Treated with Zeolites to the Steffens Process" -- 1926	10	72
"Sugar As A Food" -- 1951	10	73
"Sugar in Public Health" -- 1950	10	74
"The Cooking Process II - Cooking Wood with Sodium Carbonate" -- 1930	10	75
"The Chemistry of Lignin III. The Destructive Distillation of Lignin from Corn Cobs" -- 1929	10	76
"The Commercial Utilization of Corncobs" -- 1924	10	77
"The Masonite Process" -- 1930	10	78
"The Production of Paper From Cornstalks" -- 1939	10	79
"The Taste Sense and the Relative Sweetness of Sugars and Other Sweet Substances" -- 1947	10	80
"The Utilization of Agricultural Wastes" -- 1928	10	81
"The Utilization of Sugar Cane Bagasse for Paper, Board, Plastics, and Chemicals" -- 1946	10	82
"The Utilization of Sugar Cane Bagasse for Paper, Board, Plastics, and Chemicals" -- 1949	10	83
"Tunnel Dehydrators and Their Use in Vegetable Dehydration" -- 1942	10	84
"Use of Molasses in Grass Silage Preparation" -- 1948	10	85
"Waste-Wood Utilization by the Badger-Stafford Process" -- 1930	10	86
"Wax and Fatty Byproducts from Sugarcane" -- 1947	11	29
Alcohol-Gasoline
	Box	Folder
"Alcohol and Alcohol-Gasoline Blends as Fuels for Automotive Engines: IV. Performance Characteristics of Alcohol, Alcohol-Gasoline Mixtures, and Gasoline as Motor Fuels Under Different Road Conditions" -- 1936	10	87
"Alcohol-Gasoline" -- 1940	10	88
"Alcohol-Gasoline Water Tolerance" -- 1938	10	89
"Alcohol-Gasoline" -- [1937 or Later]	10	90
"Alcohol Motor Fuel from Molasses I - Use of Cane Molasses for Manufacture of Motor Fuel" -- 1925	10	91
"Alcohol Motor Fuel from Molasses II - Use of Alcohol and Alcohol-Ether Mixtures as Motor Fuels" -- 1925	10	92
"Alcohol-Water Injection" -- 1945	10	93
"Alcohol-Water Injection for Spark-Ignition Engines" -- 1949	10	94
"Alky-Gas Gets Going" -- 1937	10	95
"Aviation Fuels and Their Effects on Engine Performance" -- 1951	10	96
"Carburanti Alcoolici La Soluzione Di Un Importante Problema In Materia Di Carburanti Nazionali Succedanei IL Collegatore - Stabilizzatore - Denaturante "KO'" -- 1938	10	97
"Cold-Starting Abilities of Various Substitute Motor Fuels" -- 1947	10	98
"Comparative Cost of Operation of a Fordson Tractor Using Kerosene and Alcohol as Motor Fuels" -- 1935	10	99
"Comparative Fuel Economy with Gasoline and with Alcohol-Gasoline Blends" -- 1933	10	100
"Corrosion of Metals by Some Motor Fuels" -- 1938	10	101
"Das Wasseraufnahmevermogen bei O°C und das Siedeverhalten von Mischungen aus Benzin, Motorenbenzol und Alkohol" -- 1934	10	103
"Denkschrift zur Spritzwang" -- 1931	10	104
"Die Harzbrldung in Krackbenzinen" -- [undated]	10	105
"Distillation of Some Alcohol Motor Fuels" -- 1938	10	106
"Experiences Concernant un Produit Appelé Lãttbentyl', Utilisé en Suéde Depuis Dix Ans Comme Carburant Pour Moteurs" -- [1934 or Later]	10	107
"Expressing the Volatility of Motor Vehicles" -- 1936	10	108
"Fabrikation Von Absolutem Alkoholozwecks Verwendung als Zusatzmittel zu Motor-Treibstoffen" -- 1936	10	109
"Five Papers Covering Fuels for Automotive Engines, Combustion and Engine Efficiency" -- 1930	10	110
"Fuels for Speed" -- [undated]	11	1
"Gum Stability of Gasolines - Observed and True Oxygen Bomb Induction Periods" -- 1933	11	2
II Carburante Nazionale "Alcool Eterificato Crima" -- [1936]	11	3
"L'Alcool Ethylique Carburant en France" -- [1934 or After]	11	4
"L'Anthine Catalyseur de Combustion des Carburants Liquides et en Particulier de I'Alcool le Graphithine Cuirasse des Moteurs contre I'Usure" -- [undated]	11	5
"Motor Car Engines in England" -- 1933	11	6
"Motor Fuels and Vapor Lock" -- 1934	11	7
"Motor Fuels from Farm Products" -- 1938	11	8
"Motor Performance as Determined by Fuel Volatility" -- 1930	11	9
"Motor Spirits of 1936" -- 1936	11	10
"Motor Spirits of 1936" in The Automobile Engineer -- 1936	11	11
"Natural Gas and Natural Gasoline" -- 1932	11	12
"Now, A Real Motor Fuel from Molasses" -- 1941	11	14
"Power Alcohol from Farm Products: Its Chemistry, Engineering and Economics" -- 1940	10	65
"Results from Alcohol-Gasoline Fuel Blends" -- 1933	11	15
"Risultati dell' Esperienze Eseguite Col Carburante Nazionale Alcool Eterificafo Crima" -- [undated]	11	16
"Road Tests of Automobiles Using Alcohol-Gasoline Fuels" -- 1942	11	17
"Single-Cylinder Engine Tests of Substitute Motor Fuels" -- 1945	11	18
"The Effect of Gum in Gasoline" -- 1929	11	19
"Experiments on the Use of Mixtures Gasoline with Ethyl and Isopropyl Alcohols in Internal Combustion Engines" -- 1934	11	20
Chemical Uses of Agricultural Products
	Box	Folder
"Agriculture as a Potential Source of Raw Materials for Industry?" -- 1937	11	33
"Aims and Purposes of the Chemical Foundation Incorporated and the Reasons for Its Organization" -- 1919	11	34
"Butanol and Acetone from Corn" -- 1927	11	35
"Chemivision from Farm to Factory to Fortune" -- 1952	11	36
"Chemurgic Wrappings" -- 1939	11	37
"Chemical Products from Pine Stumps" -- 1939	11	38
"Chemistry in the Dairy Industry" -- 1939	11	39
"Chemurgic Pioneering" -- 1939	11	40
"Cotton Roads A Three-fold Boon for the South" -- 1939	11	41
"Drying Oils and Driers" -- 1934	11	42
"Excerpts from Address by Wheeler McMillen" -- 1939	11	43
Farm Chemurgic Journal Vol. I (2) -- 1938	11	44
Farm Chemurgic Journal Vol. I (3) -- 1938	11	45
"Farmward March Chemurgy Takes Command" -- 1939	11	46
"Fifth Annual Report The Nebraska Chemurgy Project" -- 1947	11	47
"Finding Uses In Industry for Soybean" -- 1939	11	48
"Furfural from Corncobs IV - Economic Aspect of Furfural Production" -- 1924	11	49
"Greater Industrial Development of Iowa by More Intensive Utilization of Agricultural Waste" -- 1927	11	50
"...Hydrolysis of Oat Hulls with Hydrochloric Acid" -- 1936	11	51
"Lipides Isolated from Alfalfa-Leaf Meal" -- 1941	11	52
"Motor Fuel from Molasses" -- 1924	11	53
"Motor Fuels from Farm Products" -- 1939	11	54
"Phenols from Cornstalk Alkali Lignin Preparation by Destructive Distillation and Separation by Fractional Distillation" -- 1938	11	55
"Precis of Opening Remarks" -- 1939	11	56
"Sugar and Sugar By-Products in the Plastics Industry" -- 1945	11	57
"Sugars and Sugar Derivatives in Pharmacy" -- 1947	11	58
"Sulfur in its Chemurgic Role" -- 1939	11	59
"The Celotex and Cane-Sugar Industries" -- 1930	11	60
"The Chemurgy Project and Its Proper Function in Nebraska" (6th Annual Report) -- 1948	11	61
"The Cotton Seed and Its Products" -- 1926	11	62
"The Domestic Production of Essential Oils from Aromatic Plants" -- 1940	11	63
"The Farm Chemurgic" -- 1934	11	64
"The Production of Chemicals by Filamentous Fungi" -- 1938	12	1
"The Production of Oxalic Acid from Cellulosic Agricultural Materials" -- 1934	12	2
"The Utilization of Sucrose" -- 1950	12	3
"Waxy Starch of Maize and Other Cereals" -- 1942	12	4
"When Agricultural Enters the Chemical Industry" -- 1930	12	5-6
"Wood as a Raw Material for Industrial and Chemical Products" -- 1939	12	7
	Box	Folder
"Symposium on Motor Lubricants" -- 1933	11	21
"Tentative Method of Test for Gum Content of Gasoline" -- 1934	11	22
"The Technical and Economical Advantages and Disadvantages of the Addition of Alcohol to Gasoline as Fuel for Engines" -- [1934 or After]	11	23
"Truck Operation with Alcohol - Water Injection" -- 1949	11	24
"Uber das Harz in Treibstoffen fur Vergasermotoren" -- 1934	11	25
"Uber die Alkoholbeimischung zu Treibstoffen in den europaischen Landern" -- 1936	11	26
"Use Furfural ss the Extraction Solvent to Make Motor Oils Having Low Viscosity Index" -- 1933	11	27
"Water Tolerance of Mixtures of Gasoline with Ethyl Alcohol, Isopropyl, Alcohol and Benzene" -- 1934	11	28
"Why Should You Use Cleveland Discol, Anyway?" -- [1935 or Later]	11	30
Chemistry and Chemical Engineering
	Box	Folder
"Action of Alkalies on Cellulose" -- 1928	12	8
"A Decade of Advance in Organic Chemical Manufacture" -- 1933	12	9
"Adjustment of pH of Culture Media Under Sterile Conditions" -- 1925	12	10
"A Method for the Determination of the Wall Correction for the Falling Sphere Viscometer" -- 1936	12	11
"Analysis of Mixtures of Oxalic and Citrate Acids of Titration with Ceric Sulfate" -- 1934	12	12
"Anti-Knock Compounds" [Chapter 16 from Retardation of Chemical Reactions -- 1937	12	13
"Application of the Statistical Method in Testing Paints for Durability" -- 1926	12	14
"A Rapid Method for the Determination of Sugar in Bacterial Cultures" -- 1926	12	15
"A.S.T.M. Standards on Petroleum Products and Lubricants" -- 1936	12	16
"Autoxidation of Corn Oil as Related to its Unsaponifiable Constituents" -- 1930	12	17
"Benzol: How It's Chlorinated" -- 1947	12	18
"Calculation of Points in the Ethyl Alcohol-Water Distillation Curve" -- 1925	12	19
"Calculation of Pressure Effect on Liquid-Vapor Equilibrium in Binary System: Application of Thermodynamics" -- 1937	12	20
"Catalytic Conjugation of Linseed and Soybean Oils" -- 1945	12	21
"Cellulose As It Is Completely Revealed by X-Rays Special Application to the Growth and Classification of Cotton, the Structure of Wood and the Manufacture of Rayon" -- 1930	12	22
"Cellulose Xanthate" -- 1926	12	23
"Ceric Sulfate The Use of Standard Ceric Sulfate as a Modern Analytical Chemistry's Most Recently Developed Widely Applicable Oxidizing Agent" -- undated	12	24
"Ceric Sulfate The Use of Standard Ceric Sulfate as Modern Analytical Chemistry's Most Recently Developed Widely Applicable Oxidizing Agent [Second Edition, with Extensions]" -- 1933	12	25
"Certain Solvent Properties of Furfural and Its Derivatives" -- 1927	12	26
"Changes in the Rubber Industry During the Past Fifty Years" -- 1926	12	27
"Characterization of Certain Starches and Their Amyloses" -- 1929	12	28
"Charcoal Producer - Gas for Internal Combustion Motors" -- 1943	12	29
"Chemical Composition of Wood in Relation to Physical Characteristics" -- 1929	12	30
"Chemical Engineering Building at Iowa State College" -- 1929	12	31
Chemist magazine January 1955	17	229
"Chemistry Aids Progress" -- 1939	12	32
"Chemistry of Lead "Soaps" Made from Litharge and Neutral Fat" -- 1928	12	33
"Chemistry of the Cellulose Determination" -- 1928	12	34
"Chemistry of the Sulfite Process" -- 1925	12	35
"Chemistry of Wood VII - Relation Between Methoxyl and Lignin in Wood" -- 1923	12	36a
"Chemistry Triumphant" -- 1932	12	36b
"Chromatography of Sugars and Related Substances" -- 1948	12	37
"Consumption of Nitric Acid in the Oxidation of Xylose" -- 1930	12	38
"Contributions of Forest Products Laboratory Research to Southern Pulp and Paper Developments" -- 1939	12	39
"Control of Consistency in Manufacture of Cup Grease" -- 1925	12	40
"Copper and Silver Numbers as Factors for the Evaluation Cellulose Products" -- 1928	12	41
"Detection of Methanol in Alcoholic Beverages" -- 1926	12	42
"Detonation Characteristics of Some Paraffin Hydrocarbons" -- 1931	12	43
"Deterioration of Soap-Nicotine Preparation II" -- 1929	12	44
"Determination of Cellulose in Straw Holocellulose" -- 1949	12	45
"Determination of Copper Numbers of Cellulose Materials" -- 1925	12	46
"Determination of Isopropyl Alcohol in Presence of Acetone, and of Methylethylketone in Presence of Secondary Butyl Alcohols" -- 1932	12	47
"Determination of Lignin in Cereal Straws" -- 1949	12	48
"Determination of Methanol in the Presence of Ethyl Alcohol" -- 1927	12	49
"Determination of Small Amounts of Ethyl and Butyl Alcohols" -- 1932	12	50
"Dissection of Wood Fibrils by Chemical Means" -- 1929	12	51
"Distribution of Lignin Wood" -- 1925	12	52
"Distribution of Methoxyl and Uronic Acid Groups in Cereal Straws" -- 1949	12	53
"Effect of Nitrogen and Carbon Dioxide Dilutions on Explosion Limits of Acetone and Methanol and Their Mixtures" -- 1925	12	54
"Effect of Partial Hydrolysis on the Alkali-Solubility of Wood" -- 1927	12	55
"Effect of Pigments on Elastomer Properties" -- 1948	12	56
Emulsions - undated	12	57
"Ethyl Alcohol - Ethyl Acetate and Acetic Acid-Ethyl Acetate Systems Vapor-Liquid Equilibrium Data" -- 1937	12	58
"Evaluation of Insectices" -- 1928	12	59
"Freezing Points of Glycerol and Its Aqueous Solutions" -- 1925	12	60
"Fuel and Smoke" -- 1932	12	61
"Furfural and Its Derivatives" -- 1925	12	62
"Furfural Manufacture from Oat Hulls (I) A Study of the Liquid-Solid Ratio" -- 1927	12	63
"Future Research in the Field of Organic Arsenicals" -- 1972	12	64
"Gasolines and Gasoline Fractions Susceptibility to Tetraethyllead and Aniline" -- 1936	12	65
"Gum Inhibitors for Gasoline and Benzol" -- 1934	12	66
"Helianthus Argophyllus Commercial Possibilities as Indicated by Its Composition" -- 1928	12	67
"Immunologic Significance of Vitamins (IV) Influence of Lack of Vitamin Con Resistance of the Guinea-Pig to Bacterial Infection. On Production of Specific Agglutinins an on Opsonic Activity" -- 1924	12	68
"Improved Micro-Kjeldahl Ammonia Distillation Apparatus" -- 1927	12	69
"Industrial and Chemical Engineering December 15, 1938" -- 1938	12	70
Industrial and Engineering Chemistry -- [Various Dates]	12	71
"Inflammability of Mixtures of Ethyl Alcohol, Benzene Furfural, and Acetone" -- 1929	12	72
"Influence of Accelerators Plasticity of Uncured Rubber Stocks" -- 1924	12	73
"Ion Exchange Applied to Sugar Juice Purification" -- 1946	12	74
"Is There One and Only One Cellulose?" -- 1930	12	75
"Knocking Properties of Motor Fuels and Its Prevention" -- 1931	12	76
"La détonation dans les moteure à l'injection" -- 1934	12	77
"Levulinic Acid as a Source of Heterocyclic Compounds" -- 1947	12	78
"Lubricating Oils as Insecticides in Dormant Spraying" -- 1927	12	79
"Man in a Chemical World" -- 1937	12	80
"Mass Law in the Manufacture of Nitric Acid" -- 1926	12	81
"Measurements with Sodium and Potassium Amalgam Electrodes in Solutions Containing: I. Sodium Chloride II. Potassium Chloride III. Sodium and Potassium Chlorides" -- 1930	12	82
"Monosodium Glutamate A Symposium" -- 1948	12	83
"Mothproofing Fabrics and Furs A Consideration of the Procedures That Have Been Proposed by Others and a Description of a New Process" -- 1927	12	84
"Newly Discovered Microscopic Structural Unites of Wood Fibers" -- 1930	12	85
"New Solvents for the Active Principles of Pyrethrum" -- 1929	12	86
"Optical Rotation of Cellulose Materials I. The Optical Rotation of Soluble Cellulose in Alkali" -- 1930	12	87
"Patents on the Reactions of Sugars" -- 1947	12	88
"Peanut-Hull Cellulose" -- 1930	12	89
"Perchloric Acid" -- undated	12	90
"Photochemical Decomposition of Lactic Acid" -- 1929	12	91
"Plastics" -- 1943	12	92
"Preparation of I-Arabinose from Mesquite Gum" -- 1925	12	93
"Processes Involved in the Decomposition of Wood with Reference to the Chemical Composition of Fossilized Wood" -- 1929	12	94
"Proteins of the Castor Bean - Their Preparation, and Properties, and Utilization" -- 1943	12	95
"Rate of Carbon Dioxide Absorption by Carbonate Solutions in a Packed Tower" -- 1937	12	96
"Recent Progress in Insecticides and Fungicides" -- 1924	12	97
"Relative Merits of Sucrose, Dextrose, and Levulose as Used in the Preservation of Eggs by Freezing" -- 1930	12	98
"Repellents for Blowflies" -- 1927	12	99
"Requirements of Pectin for the Commercial Jell-Maker" -- 1925	12	100
"Separation and Properties of the Two Main Components of Potato Starch" -- 1930	12	101
"Simplification of the Petering-Wolman-Hibbard Method for Determination of Chlorophyll and Carotene" -- 1941	12	102
"Solubility of Metals in Milk" -- 1929	12	103
"Some Chemical Problems of the Insecticide Industry" -- 1924	12	104
"Some Critical Constants of Furfural" -- 1926	12	105
"Some Recent Advances in the Chemistry of Milk" -- 1930	12	106
"Starch in Sorghum Syrup" -- 1924	12	107
"Studies on Cellulose Chemistry IV. Properties of Gamma-Delta- Dihydroxy-Carbonyl Derivatives and Their Bearing on the Polymerization of Polysaccharides" -- 1923	12	108
"Studies on Pyrethrum Flowers I. The Quantitative Determination of the Active Principles" -- 1929	12	109
"Studies on Reactions Relating to Carbohydrates and Polysaccharides. XXXI. The Behavior of Cellulose Toward Solutions of Aluminum Salts" -- 1930	12	110
"Studies on Reactions Relating to Carbohydrates and Polysaccharides XXIX. The Constitution of Alkali Cellulose" -- 1930	12	111
"Studies on Pyrethrum Flowers II. The Relation Between Maturity and Pyrethrum Content" -- 1930	12	112
"Studies on Pyrethrum Flowers IV. The Relative Toxicity of Pyrethrins I and II" -- 1930	12	113
"Studies upon Starch" -- 1926	12	114
"Sugar Derivatives: A Survey of Potential Production Costs" -- 1949	12	115
"Sulphur: An Essential to Industry and Agriculture" -- 1934	12	116
"Synthetic Versus Natural Products" -- 1926	12	117
"The Action of Chloral on Cellulose" -- 1923	12	118
"The Action of Fatty Acids on Cellulose" -- 1929	12	119
"The Agar Industry in California" -- 1930	12	120
"The Arrangement of Electrons in Atoms and Molecules" -- 1919	12	121
"The Chemical Control of Gaseous Detonation with Particular Reference to the Internal-Combustion Engine" -- 1922	12	122
"The Chemical Unsaturation of Rubber Under the Action of Heat, Thricholoroacetic Acid, Ultraviolet Light, and Mastication" -- 1926	12	123
"The Chemistry of Published Materials - Chemical and Chemical Engineering"	12	124
"The Chemistry Wood II - Water-Soluble Polysaccharide of Western Larch Wood" -- 1930	12	125
"The Classification of Carbon Compounds" -- 1912	12	126
" The Composition of Colla Gum I. The Isolation of I-Arabinose, d-Galactose and I-Rhamnose" -- 1929	12	127
"The Composition of Gum Arabic" -- 1929	12	128
"The Composition of Pectin: A Preliminary Report on the Determination of Galacturonic Acid in Pectin" -- 1926	12	129
"The Constitution of Flax Cellulose" -- 1928	12	130
"The Cooking Process I-Role of Water in the Cooking of Wood" -- 1930	12	131
"The Correlation of Car and Fuel Vapor-Locking Characteristics" -- 1936	13	1
"The Disruption of the Corn Starch Granule and Its Relation to the Constituent Amyloses" -- 1929	13	2
"The Effect of Temperature on the Molecular Surface Energy of Binary Mixtures II. Water and Nicotine" -- 1930	13	3
"The Elementary Composition of the Pentosans Xylan" -- 1930	13	4
"The Equilibrium Between Lactic Acid and Its Anhydrides" -- 1924	13	5
"The Estimation of Pentoses and Pentosans I - The Formation and Distillation of Furfural" -- 1923	13	6
"The Estimation of Pentoses and Pentosans II - The Determination of Furfural" -- 1923	13	7
"The Fractional Precipitation of Cellulose Acetate and Some Properties of the Fractions" -- 1929	13	8
"The Future of Alcohol A Five-Author Symposium" -- 1948	13	9
"The Future Trend of Cellulose Chemistry" -- 1926	13	10
"The Gelatinization of Lignocellulose III. The Viscose Reaction" -- 1927	13	11
"The Influence of Time and Temperature on the Swelling of Gluten" -- 1926	13	12
"The Kjeldahl-Pregl Method Applied to Nitro Compounds" -- 1926	13	13
"The Knocking Property of Motor Fuels and its Prevention III. Study on Tetraethyl-Lead" -- undated	13	14
"The Knocking Property of Motor Fuels and its Prevention IV. Alcohol as an Anti-Knock Material" -- undated	13	15
"The Literature of Alkylated Carbohydrates VII. Alkyl Derivatives of Disaccharides, Polysaccharides, Glycosides, and Miscellaneous Substances" -- 1933	13	16
"The Literature of Alkylated Carbohydrates VIII. Accumulated Literature Since Publication of Earlier Papers" -- 1933	13	17
"The Molecular Structure of Insulin. Isolation of new Anhydrofructose" -- 1929	13	18
"The Opportunity for Fundamental Research in the Paper Industry" -- 1939	13	19
"The Preparation of Emulsions and Other Products with Triethanolamine" -- 1934	13	20
"The Production of Furfural from Xylose Solutions By Means of Hydrochloric Acid-Sodium Chloride Systems" -- 1936	13	21
"The Quantitative Determination of Formic Acid in the Presence of Acetic Acid by a Conductometric Titration" -- 1929	13	22
"The Reactivity of Atoms and Groups in Organic Compounds X. The Measurement of the Relative Liability of Bonds By Means of Rates of Reactions and of Temperatures of Decomposition I. The Hydrogen-Oxygen Bond In Certain Alcohols" -- 1930	13	23
"The Sources and Nature of Celluloic Materials Used for Pulping" -- 1939	13	24
"The Relation Between plt and the Reaction of Aqueous Solutions at Various Temperatures" -- 1926	13	25
"The Spontaneous Decomposition of Sugar-Cane Molasses" -- 1929	13	26
"The Surface Tensions of Binary Mixtures of Four Volatile Fatty Acids" -- 1932	13	27
"The State of Dispersion of Cellulose In Cuprammonium Solvent As Determined By Ultracentrifuge Methods" -- 1930	13	28
"The Thermal Aspects of Carburation, with Special Reference to the Vaporization of Ethyl Alcohol" -- 1933	13	29
"The Thermal Increments and Critical Temperatures of Biological Reactions" -- 1929	13	30
"Titanous Chloride for the Determination of Iron and of Chloric Acid" -- 1927	13	31
"Vapor Pressures of Fumigants IV - Vapor Pressure of Nicotine" -- 1929	13	32
""Volatility of Nicotine" -- 1928	13	33
"Vapor Pressures of Glycerol- Water and Glycerol-Water-Sodium Chloride Systems" -- 1925	13	34
"Viscosity of Pectin Sols (II) Effects of Citric Acid and Various Sugars" -- 1930	13	35
"What the X-Ray Tells Us of the Structure of Cellulose" -- 1929	13	36
"Whole and Skimmed Milk Powders as Food" -- 1925	13	37
"Why Dope Gasoline?" -- 1932	13	38
Christensen, Leo
	Box	Folder
"Adjustment of pH of Culture Media Under Sterile Conditions" in Industrial and Engineering Chemistry -- 1925	13	39
"Agrol - Economic Aspects" in Farm Chemurgic Journal -- 1937	13	40
"Alcohol-Gasoline Blends" in Industrial and Engineering Chemistry -- 1936	13	41
"A Modified Kjeldahl Method for the Determination of the Nitrogen Content of Yeast" in Plant Physiology -- 1927	13	42
"Analysis of n-Butanol, Acetone, and Ethanol in Aqueous Solution" in Industrial and Engineering Chemistry Analytical Edition" -- 1935	13	43
"Commercial Production and Use of Bran Mold" in Cereal Chemistry -- 1947	13	44
"Gasoline and Alcohol-Gasoline Blends" in Industrial and Engineering Chemistry -- 1936	13	45
"Gasoline and Alcohol-Gasoline Blends" in Proceedings of the Second Dearborn Conference of Agriculture, Industry and Science -- 1936	13	46
"On the Nitrogen Content of Growing Cultures of Mycoderma and of Saccharomyces Cerevisiae" in Plant Physiology -- 1928	13	47
Power Alcohol and Farm Relief (No. 3 of The Deserted Village) -- 1936	13	48
"Power Alcohol" in Proceedings of the Dearborn Conference of Agriculture, Industry and Science -- 1935	13	49
"Power Alcohol" in Report of the Kansas State Board of Agriculture for Quarter Ending in March -- 1939	13	50
"Practical Problems of Converting Farm Crops Into Alcohol" in Midwestern Conference of Agriculture, Industry, and Science -- 1937	13	51
"Reaction of Alcohol-Gasoline Blends in the Doctor Test" in Industrial and Engineering Chemistry -- 1937	13	52
"The Efficiency of the Production of Ethanol from Starchy Substrates" in Cereal Chemistry -- 1943	13	53
"The Fixation of Atmospheric Nitrogen by Yeast" (Doctoral Thesis) -- 1927	13	54
"The Fixation of Atmospheric Nitrogen by Yeast as a Function of the Hydrogen Ion Concentration" in Journal of Physical Chemistry -- 1925	13	55
"The Physical-Chemical Properties of Alcohol-Gasoline Blends I, II, III, IV" in Iowa State College of Science -- 1933	13	56
"The Production of Ethyl Alcohol from Cull Potatoes and Other Farm Crops" in University of Idaho Agricultural Experiment Station Bulletin -- 1941	13	57
"Use of Corn in the Fermentation Industries" in Contributions from Iowa Corn Research Institute -- 1939	13	58
"The Use of Corn in the Fermentation Industries" in Contributions from Iowa Corn Research Institute -- 1939	13	59
	Box	Folder
Congressional Hearings -- 1949	13	60
Enzymatic Processes
	Box	Folder
"Action of Trypsin on the Properties of Collagen" -- 1930	13	61
"Application of Enzymes to Beet Sugar Factory Control" -- 1925	13	62
"A Quantitative Study of the Influence of Acetate and of Phosphate on the Activity of Malt Amylase" -- 1930	13	63
"A Study of the Starch-Digesting and Sugar-Forming Enzymes of Wheat" -- 1933	13	64
"Bacterial Amylases", "Production on Wheat Bran" -- 1945	13	65
"Diastatic Enzymes in Certain Foods" -- 1932	13	66
"Diatane and Liquezyme for Saccharification of Starches" -- undated	13	67
"Industrial Applications of Invertase" -- 1925	13	68
"Invertase" -- 1940	13	69
"Pentose Reactions I. Furfural Formation" -- 1932	13	70
"Pentose Reactions II. Derivatives of Xylose" -- 1932	13	71
"Parallelism Between Starch Dextrinizing and Liquefying Activities of Amylases" -- 1941	13	72
"Studien uber die proteolytischen Enzyme der Hefe and ihre Beziehung zu der Autolyse" -- 1917	13	73
"Studies in the Drying Oils XIII Changes in Linseed Oil, Lipase, and Other Constituents of the Flaxseed as Its Matures" -- 1929	13	74
"Studies on Enzyme Action. The Relationship Between the Chemical Structure of Certain Compounds and Their Effect Upon the Activity of Urease" -- 1923	13	75
"The Carbohydrates and the Enzymes of the Soy Bean" -- 1915	13	77
"The Chemical Action of Aerobacter faeni on Zylose and Sucrose" -- 1931	13	78
"The Influence of Certain Neutral Salts Upon the Activity of Malt Amylase" -- 1930	13	79
"The Interrelation of Hydrogen-Ion Activity and Concentration of Salt in the Activation of Pancreatic Amylase" -- 1928	13	80
"The Preparation and Properties of Amylase from Germinated Wheat and Rye" -- 1925	13	81
"The Production of Acetylmethyl Carbinol by Clostridium Acetobutylicum" -- 1927	13	82
"The Production of Gluconic Acid by the Penicillium Luteum-Purporogenum Group I" -- 1927	13	83
"The Production of Gluconic Acid by the Penicillium Luteum-Purporogenum (II) Some Optimal Conditions for Acid Formation" -- 1928	13	84
"The Proprionic Acid Bacteria I. Classification and Nomenclature" -- 1931	13	85
"The Starch Degrading Properties of Barley Malts" -- 1941	13	86
"The Utilization of Sucrose by the Mammalian Organism" -- 1949	13	87
"Water Concentration and the Rate of Hydrolysis of Sucrose by Invertase" -- 1928	13	88
Fermentation Processes
	Box	Folder
"Alcoholic Fermentation of Jerusalem Artichokes" -- 1937	13	89
"Bacterial Amylases... Production In Thin Sillage" -- 1946	13	90
"Biological and Chemical Studies of the Lactobacillus Genus with Special Reference to Xylose Fermentation by L. Pentoacepticus" -- 1931	13	91
"Decomposition of Cellulose in Fresh Sewage Solids" -- 1927	13	92
"Effect of Methods of Preparation Upon Fermentative Activity of Yeast Zymin" -- 1936	13	93
"Fermentative Utilization of Cellulosic Materials Especially the Pentosans" -- 1936	14	1
Industrial Fermentations -- 1930	14	2
"Process of Brewing Soy" -- 1905	14	3
"Production and Properties of 2, 3 - Butanediol XXXIII Automatic pH Control in the Dissimilation of Sucrose by Bacillus Polymyax" -- 1949	14	4
"Products of the Thermophilic Fermentation of Cellulose" -- 1930	14	5
"Production and Properties of 2, 3 - Butanediol (-VII) Fermentation of Wheat by Aerobacillus Polymyxa Under Aerobic and Anaerobic Conditions" -- 1946	14	6
"Production and Properties of 2, 3 - Butanediol VII pH Control in Aerobacillus Polymyxa Fermentations and the Effects on Products and Their Recovery" -- 1946	14	7
"Production and Properties of 2, 3 - Butandeiol (IX) The Effect of Various Nutrient Materials On The Fermentation of Starch by Aerobacillus Polymyxa" -- 1946	14	8
"Production and Properties of 2, 3 - Butandeiol (X) The Effects of Surface-Volume Ratio and Reduced Pressure on the Fermentation of Carbohydrates by Aerobacillus Polymyxa and Aerobacter Aerogenes" -- 1946	14	9
"Production of Fat From Glucose by Molds Cultivation of Penicillium javanicum van Beijma in Large-Scale Laboratory Apparatus" -- 1935	14	10
"Production of Organic Acids from Carbohydrates by Fermentation" -- 1932	14	11
"Saccharification of Starchy Grain Mashes for the Alcoholic Fermentation Industry" -- 1940	14	12
"Some Factors That Influence the Formation of Products in the Thermophilic Fermentation of Cellulose" -- 1932	14	13
"Some of the Characteristics of Yeasts Found in Fermenting Honey" -- 1931	14	14
"Soy and Related Fermentations" -- 1923	14	15
"Studies of Yeasts and the Fermentation of Fruits and Berries of Washington" -- [1936 or Later]	14	16
"Synthetic Methanol and Ammonia from Butyl Fermentation Gases" -- 1927	13	76
"The Butyl-Acetone Fermentation in Sugar Media" -- 1934	14	17
"The Free Energy Decrease of Alcoholic Fermentation" -- 1928	14	18
"The Hydrolysis of Native Proteins by Bacillus Granulobacter Pectinovorum and the Influence of the Carbohydrate-Protein Ratio on the Products of Fermentations" -- 1926	14	19
"Why Waste Fermenter Gas?" -- 1935	14	20
"The Chemical Action of Aerobacter faeni on Xylose and Sucrose" -- 1931	14	21
"The Chemical Approach to Problems of Fermentation" -- 1930	14	22
"The Fermentation of Cornstalks and Their Constituents I. Studies on the Pectin-Fermenting Bacteria" -- 1928	14	23
"The Effect of Ammonium Salts Upon the Swelling of Colloids and Upon the Growth of Yeast at Various Temperatures" -- [1924 or Later]	14	24
"The Fermentation of Pentoses by Bacillus Granulabacter Pectinovorum" -- 1924	14	25
"The Formation of I-Leucic Acid in the Acetone-Butyl Alcohol Fermentation" -- 1924	14	26
"The Free Energy Decrease of Alcoholic Fermentation" -- 1928	14	27
"The Nature of the Acids Produced in the Fermentation of Maize by Clostridium Acetobutylicum" -- 1929	14	28
"The Physico-Chemical Approach to problems of Fermentation" -- 1943	14	29
General
	Box	Folder
"Agricultural Resources and Factors Affecting Their Use" -- 1934	14	30
"Agricultural Resources of Kansas" -- 1937	14	31
"America Strikes Back" -- 1935	14	32
"An All Electric Heating, Cooling and Air Conditioning System" -- [1935 or Later]	14	33
"Analysis of the Jerusalem Artichoke" -- 1923	14	34
"An Outline of the Law Chemical Patents" -- 1927	14	35
"A Primer Comment on the Great Constructive Work to the President of the United States in Making Arithmetic the Basic Science of Government" -- 1934	14	36
"A Statistical Inquiry Into Methods for Estimating Numbers of Rhizobia" -- 1931	14	37
"Better Tenant Farming" -- 1937	14	38
"Biological Abstracts" -- undated	14	39
"Biological Survey of the East Texas Big Thicket Area" -- 1936	14	40
"But Only God Can Make A Tree" The Deserted Village No. 2 -- 1934	14	41
"Castaways of Plenty" -- 1934	14	42
"Castaways of Plenty - A Parable of Our Times" -- 1935	14	43
"Cellulose Resources I - The Annual Wood Crop" -- 1928	14	44
"Change Rules the Rails" The Deserted Village No. 8 -- 1936	14	45
"Chemical Stimulation by Alcohols in the Barnacle, the Frog and Planaria" -- 1930	14	46
"Chemistry in the Service of Science" The Deserted Village No. 5 -- 1934	14	47
"Commercial Possibilities of the common Milkweed" -- 1930	14	62
"Compte-Rendus" Vol. II of 5th International Congress of Techniques and Chemistry of Agricultural Industries [Cover Page] -- 1937	14	63
"Deep Wells at Lincoln Nebraska" -- 1939	14	64
"Dutch Patent Law and Chemical Inventions" -- 1927	14	65
"Elements of Wine Making" -- 1934	14	66
"Hot Money vs Frozen Funds - The Deserted Village No. 12" -- 1937	14	67
"Industrial Fellowships" -- 1924	14	68
"Intravenous Sucrose Administration in Clinical Practice" -- 1945	14	69
Iowa State College Engineering Alumni Directory 1872 to 1949" -- 1949	14	70
"Journal of the Aeronautical Sciences" -- 1941	14	71
"Let's Go Partners" and Science In an American Program for Social Progress" The Desert Village No. 11 -- 1936	14	72
"Letter to the President on Foreign Trade" -- 1934	14	73
"Lost 217 Billion Dollars The Key to Recovery and Enduring Prosperity" -- 1937	14	74
"Manual of 224 Successful Solutions to Chemical Engineering Problems" -- undated	14	75
"Mass Production of Bleached Papers" -- 1939	14	76
"Mass Production of Paper in the South" -- 1939	14	77
"Men, Money and Molecules" -- 1936	14	78
"Natural Sodium Bicarbonate Waters in the United States" -- 1927	14	79
"970, 000,000 Minus A Second Primer" -- 1935	14	80
"Oil for the Lamps of China" -- 1933	14	81
"Our Expanding Trade in Perfumery and Toilet Articles" -- 1927	15	1
"Petroleum Shortage and Its Alleviation" The Desert Village No. 6 -- 1935	15	2
"Power Alcohol and Farm Relief" The Deserted Village No. 3 -- 1936	15	3
Proceedings of the Fifty-Fourth Annual Convention Nebraska State Irrigation Association -- 1946	15	4
"Scientific Method of Thought in Our National Problems" The Deserted Village No. 10 -- 1936	15	5
"Sell America First" The Deserted Village No. 1 -- [circa 1934]	15	6
"Soil... People, and Fertilizer Technology" -- 1949	15	7
"Some Aspects of Chemical Patent Searches" -- 1929	15	8
"State Supported Research Programs" -- 1939	15	9
"Studies on Parenchymatous and Vascular Plant Tissues. Some Analytical and Specific Gravity Data" -- 1931	15	10
"The American Balance Sheet in Fats and Oils" -- 1936	15	11
'The American Institute of Chemists, Inc.: Constitution and by Code of Ethics. Directory of Membership" -- 1950	15	12
"The Birth Control of New American Industries Cui Bono? The Deserted Village No. 4 -- 1934	15	13
"The Chemists' Club" -- 1951	15	14
"The Detroit Chemist" -- 1934	15	15
"The Growth of Diversified Production of Paper and Pulp in the South" -- 1939	15	16
"The Importance of Agricultural Welfare" The Deserted Village No. 9 -- 1936	15	17
"The Kansas City Times" [February 5, 1938] -- 1938	15	18
"The Only Real Security" The Deserted Village No. 7 -- 1936	15	19
"The Ordinall of Alchimy" -- 1929	15	20
"The Rockefeller Foundation A Review for 1946" -- 1946	15	21
"The State's Function in Industrial Development" -- 1939	15	22
"Time to Plan: Petroleum Shortage and Its Allevation" -- 1936	15	23
"Ventilation of Vehicular Tunnels" -- 1927	15	24
"Continuity of Operation a Feature of Modern Alcohol Distillery" -- 1934	15	25
Industrial Plant Design
	Box	Folder
"Manufacture of Sweet Potato Starch in the United States" -- 1938	15	26
"Pilot Plant Studies on the Fermentative Production of 2, 3 Butanediol" -- 1944	15	27
Industrial Alcohol
	Box	Folder
"Continuity of Operation a Feature of Modern Alcohol Distillery" -- 1934	15	28
"Distiller Profits from Solid Carbon Dioxide" -- 1935	15	29
"Ethyl Alcohol Industry Improves Its Distillation Processes" -- 1929	15	30
"Increase in Denatured Alcohol Output Widens Market for Denaturants" -- 1937	15	31
"Industrial Alcohol" -- 1935	15	32
"Industrial Alcohol" -- 1944	15	33
"Industrial Alcohol" -- 1950	15	34
"Industrial Alcohol Regulations 3" -- 1942	15	35
Regulations No. 3 Laws and Regulations Relative to the Production Tax Payment etc., of Industrial Alcohol and to the Manufacture, etc. of Denatured Alcohol" -- [After 1930]	15	36
"Report on Procurement of Raw Products for the Manufacture of Alcohol" -- 1937	15	37
"The Facts About Industrial Alcohol" -- 1930	15	38
"The Importance of Gum in Gasoline" -- 1929	15	39
"The Manufacture of Anhydrous Ethyl Alcohol" -- 1929	15	40
	Box	Folder
Memorandum -- 1938	15	41
Microorganisms
	Box	Folder
"A Cultural Study of the Acetone Butyl Alcohol Organism" -- 1926	15	42
"A Rapid Method for the Determination of Sugar In Bacterial Cultures" -- 1926	15	43
"Bacterial Phylogeny as Indicated by Modern Types" -- 1918	15	44
"Biochemical Studies of Some Fusaria" -- 1938	15	45
"Biochemistry of Bacillus Acetoethylicum with Reference to the Formation of Acetone" -- 1919	15	46
"Chemical Compounds Formed from Sugars by Molds" -- 1947	15	47
"Colloids and the Growth of Microorganisms" -- 1929	15	48
"Destruction of Carbohydrates and Organic Acids by Bacteria from a Trickling Filter" -- 1932	15	49
"Dissimilation of Glucose by Bacillus Subtilis (Ford's Strain)" -- 1945	15	50
"Further Observations on the Bacteriophage of Bacillus Megatherium" -- 1932	15	51
"Growth Factors for Bacteria XIV. Growth Requirements of Acetobacter Suboxydans" -- 1943	15	52
"Influence of the Amino Acid-Dextrose Reaction of Bacillus Polymyxa" -- 1949	15	53
"Isolation and Characterization of Nitrosomonas and Nitrobacter" -- 1931	15	54
"Life Phases in a Bacterial Culture" -- 1918	15	55
"No. 121: The Effect of Alcohol on the Toxicity of Phenol Towards Yeast" -- 1922	15	56
"No. 124: The Acclimatization of Yeast to Ammonium Fluoride and Its Reversion in Wort" -- 1922	15	57
"On the Stability of Physiological Characters of Bacteria" -- 1932	15	58
"Oxidation - Reduction Potentials in Relation to the Growth of an Aerobic Form of Bacteria" -- 1931	15	59
"Some Observations on the Growth of Yeast" -- [1924 or Later]	15	60
"Sterol Content and Antirachitic Activatibility of Mold Mycelia" -- 1931	15	61
"Studien uber den Megatherium-Bakteriophagen" -- 1931	15	62
"Studies in the Classification and Nomenclature of the Bacteria (VIII) The Subgroups and Genera of the Actinomycetales" -- 1918	15	63
"Studies in the Nomenclature and Classification of Bacteria The Problem of Bacterial Nomenclature" -- 1916	15	64
"Studies in the Nomenclature and Classification of the Bacteria (II) The Primary Subdivisions of the Schizomycetes" -- 1917	15	65
"Studies on the Nomenclature and Classification of the Bacteria (III) The Families of the Eubacteriales" -- 1917	15	66
"Studies on the Nomenclature and Classification of the Bacteria (IV) Subgroups and Genera of the Coccaceae" -- 1917	15	67
"Studies in the Nomenclature and Classification of the Bacteria (V) Subgroups and Genera of the Bacteriaciae" -- 1918	15	68
"Studies in the Classification and Nomenclature of the Bacteria (VII) The Subgroups and Genera of the Chlamydobacteriales" -- 1918	16	1
"Studies in the Classification and Nomenclature of the Bacteria (IX) The Subgroups and Genera of the Thiobacteriales" -- 1918	16	2
"Studies in the Classification and Nomenclature of the Bacteria (X) Subgroups and Genera of the Myxobacteriales and Spirochaetales" -- 1918	16	3
"Studies on Toxicity" -- 1923	16	4
"Studies on Yeast - (VI) On the Continuous Growth of Saccharomyces Cerevisiae in Synthetic Mediums" -- 1923	16	5
"Studien uber Bakteriophage (III) Ueber Bac. undulatus n. spec. and den darin anwesenden Bakteriophagen" -- 1931	16	6
"The Biochemistry of Nitrogen Fixation by Leguminosae (I) Nitrogen Fixation Studies of Rhizobia Apart from the Host Plant" -- 1932	16	7
"The Effect of Alcohol on the Toxicity of Phenol Towards Yeast" and "The Acclimatization of Yeast to Ammonium Fluoride and Its Reversion in Wort" -- 1921	16	8
"The Effect of Sterilization of Media Upon Their Growth Promoting Properties Toward Bacteria" -- 1931	16	9
"The Effect of Temperature Upon the Growth of Yeast in Various Media" -- 1926	16	10
"The Effect of Ultraviolet Radiation Upon Yeast Culture Media" -- [1924 or Later]	16	11
"The Energetics of Heterotrophic Bacteria" -- 1931	16	12
"The Gas Requirements of Molds - I. A Preliminary Report on the Gas Requirements of Penicillin Roqueforti (Various Strains of Blue Mold from Cheese)" -- 1937	16	13
"The Gas Requirements of Molds III. The Effect of Various Concentration of Carbon Dioxide on the Growth of Penicillin Roqueforti (Three Strains Originally Isolated from Blue-Veined Cheese) in Air" -- 1940	16	14
"The Growth of Yeast on a Medium of Wholly Synthetic Origin" -- 1923	16	15
"The Growth of Yeasts on a Synthetic Agar Media" -- 1923	16	16
"The Multiple Nature of Bios" -- 1924	16	17
"The Proteolytic Action of Bacillus Granulobacter Pectinovorum and Its Effect on the Hydrogen-Ion Concentration" -- 1924	16	18
"The Production of a Yeast Growth Stimulant by Heating Media Under Pressure" -- 1927	16	19
"The Thermodynamics of Cell Reactions" -- 1932	16	20
"The Utilization of Atmospheric Nitrogen by Saccharomyces Cerevisiae" -- 1923	16	21
"Wachstum and Steringehalt gewisser Schimmelpilze" -- 1932	16	22
Synthetic Rubber
	Box	Folder
"A Survey of the Literature on Synthetic Rubber, with Special Reference to its History, Raw Materials Employed and Its Commercial Production" -- 1943	16	23
"Butadiene and Styrene for Buta S Synthetic Rubber Grain Alcohol" -- 1943	16	24
"Report of the Rubber Survey Committee" -- 1942	16	25
"Some Scientific Aspects of the Synthetic Rubber Problem" -- 1943	16	26
Return to Table of Contents »
V. Patent Materials Scope and Contents note A collection of summaries, applications, forms, correspondence and other related materials for patents held in fields and processes in relation to activity within the Chemurgic movement. Some of the materials relate to patents applied for, rejected and held by Christensen in both his individual research and commercial consulting work. Christensen collected patent materials for many processes held by researchers world-wide. Arranged alphabetically.
	Box	Folder
Agents moteurs Obtenus a partir de gaz de fours a coke de gaz de cracking et de gaz analogues, et procede pour leur fabrication et leur utilisation -- 1935	16	48
Alcohol and Method of Producing the Same -- 1929	16	49
Alcohol Denaturant and Process of Preparing It -- 1934	16	50
Alcoholic Distillation -- 1888	16	51
Alcoholic Fermentation Process and Product Thereof -- 1933	16	52
Alcoholic-Ferment Mash -- 1894	16	53
Alkylation of Acid Nitriles -- 1934	16	54
Amino Nitrile and Process of Producing Same -- 1935	16	55
Ammoniated Agricultural Material As Livestock Feed and Process of Producing Same	16	56
Amylotic Enzyme -- 1911	16	57
An Improved Process for Preparing Fuels Comprising Alcohol and Liquid Hydrocarbon -- 1924	16	58
Apparatus for Producing Diastatic Product -- 1916	16	59
Apparatus for Obtaining Absolute Alcohol -- 1926	16	60
Apparatus for Obtaining Alcohol -- 1924	16	61
Apparatus for Top Fermentation of Beers Not in Vocuo -- 1900	16	62
Application Re Production of Glycerol by Fermentation -- 1938, 1939	11	31
Artificial Resin and Process of Making Same -- 1931	16	63
Artificial Training Substances and Process of Preparing Them -- 1937	16	64
Art of Brewing -- 1910	16	65
Art of Brewing Beer -- 1918	16	66
Art of Brewing Beer and Other Liquors -- 1910	16	67
Art of Butyl-Acetonic Fermentation -- 1931	16	68
Art of Butyl-Acetonic Fermentation -- 1933	16	69
Art of Refining Edible Oils, Fats and Analogous Products -- 1938	16	70
Art of Making Certain Fermented Beverages -- 1885	16	71
Art of Manufacturing Fermenting Materials -- 1884	16	72
Assignment and Petition and Power of Attorney -- 1938	16	73
Beer Manufacture -- 1933	16	74
Beverage and Method of Preparing Same -- 1915	16	75
Biochemical Fermentation Process -- 1933	16	76
Biological Production of Butyl Alcohol and Acetone -- 1932	16	77
Brewing Beer -- 1909	16	78
Brewing, Distilling, and the Like -- 1909	16	79
Canadian
	Box	Folder
1919, 1921, 1923, 1924	16	80
1919, 1928, 1931, 1932, 1933, 1934, 1935	16	81
1919, 1934	16	82
Carburant
	Box	Folder
1927	17	1
1931	17	2
1932	17	3
1932	17	4
1935	17	5
1936	17	6
	Box	Folder
Carburant antidetonant pour moteurs -- 1934	17	7
Carburant rouge liquide destine a reduire la consommation d'essence de petrole dans les moteurs a explosions -- 1928	17	8
Carburants non detunants pour moteurs a explosion -- 1931	17	9
Carburants non detonants pour moteurs a explosion -- 1932	17	10
Catalyseur pour tous combustibles solides, liquides, etc. -- 1930	17	11
Certificate of Correction Patent 1,784,360 -- 1930	11	32
Chemical Foundation's Agrol Patents Pertaining to the Manufacture of Agrol from Grains and Potatoes -- undated	17	12
Chemical Retting and Ungumming of Vegetable Fibers -- 1891	17	13
Christensen-Schopmeyer Patent Application -- 1933	17	14
Combustible liquide et son procede de fabrication -- 1928	17	15
Combustible ne cognant pas pour moteurs -- 1930	17	16
Combustible pour moteurs
	Box	Folder
1930	17	17-18
1932	17	19
1934	17	20
	Box	Folder
Combustible pour moteurs a combustion interne -- 1932	17	21
Combustible pour moteurs Diesel -- 1933	17	22
Combustible pour moteurs Diesel et Semi-Diesel -- 1934	17	23
Combustible pour moteurs, et leur procede de fabrication -- 1929	17	24
Composes antidetonants -- 1936	17	25
Composition of Matter for Use in Extracting Vegetable Fibers -- 1899	17	26
Concentrated Enzymic Substance and Method of Preparing Same -- 1925	17	27
Construction of Buildings -- 1903	17	28
Continuous Butyl Alcohol Fermentation Process -- 1932	17	29
Denatured Alcohol
	Box	Folder
1925	17	30
1926	17	31
1936	17	32
1937	17	33
	Box	Folder
Diastatic Product -- 1913	17	34
Diastatic Product and the Process for Producing the Same -- 1915	17	35
Diastatic Substance and Method of Making Same -- 1906	17	36
Disclosures -- 1935	17	37
Dispenserion d'agents anti-detonants dans les carburants -- 1929	17	38
Distillate Petroleum Product and Method of Treating Same -- 1934	17	39-41
Distilling Process -- 1922	17	42
Dough Composition and Process of Making the Same -- 1929	17	43
Enzymatic Processes - "Action of Aspergillus Niger on Normal 1, 2-Diols" -- 1934	17	44
Enzyme -- 1911	17	45
Extract for Carbonated Beverages -- 1917	17	46
Extract for Coloring Wort or Beer and the Manufacture Thereof -- 1901	17	47
Fatty-Oil Composition -- 1930	17	48
Feed Supplement -- 1951	17	49
Ferment and Process of Producing the Same -- 1906	17	50
Fermentation
	Box	Folder
of Cellulose -- 1927	17	51
Cellulosic Material -- 1932	17	52
Cellulosic Materials -- 1932	17	53
of Cellulosic Material -- 1933	17	54
of Liquids -- 1906	17	55
of Materials Which Have Been Rendered Aseptic -- 1899	17	56
of Sugars -- 1933	17	57
of Sulfite Waste Liquor -- 1917	17	58
Fermentation Process
	Box	Folder
1915	17	59
1924	17	60-61
1930	17	62
1929	17	63
"Citric Acid Fermentation" -- 1934	17	64
"Effect of Ethanol Upon Fermentative Activity of Zymin" -- 1934	17	65
"The Effect of Steffen Waste on the Fermentation of Pentosans from the Corn-Stalk" -- 1929	17	66
1892	17	67
Growing of Yeast
	Box	Folder
1922	17	68
1923	17	69-70
	Box	Folder
Hydrocarbons Oils and Method of Making the Same -- 1928	17	71
Improved Beverage -- 1865	17	72
Improved Composition for the Manufacture of Beer, Ale, Porter, etc. -- 1868	17	73
Improved Concentrated Malt-Extract -- 1868	17	74
Improved Malt Extract -- 1866	17	75
Improved Method of Making Yeast -- 1869	17	76
Improved Mode of Fermenting Liquids for Distillation and Other Purposes -- 1867	17	77
Improved Motor Fuels -- 1933	17	78
Improved Process and Apparatus for the Fermentation of Saccharine Liquids -- 1867	17	79
Improved Process for Making Beer -- 1865	17	80
Improved Process of Deriving Useful Products from Garbage, etc. -- 1869	17	81
Improved Process of Distilling Spirits -- 1869	17	82
Improved Process of Manufacturing Alcoholic Spirits -- 1867	17	83
Improvement in
	Box	Folder
Brewing and Preserving Alcoholic Drinks -- 1849	17	84
Concentrated Beer Material -- 1852	17	85
Fermenting Mashes -- 1871	17	86
Fermentation and Distillation -- 1872	17	87
Fermenting and Oxidizing Mash, Malt, etc. -- 1868	17	88
Germinating or Growing Grain or Seeds for Malting or Other Purposes -- 1875	17	89
Malting Grain -- 1870	17	90
Managing Saccharine, Vinous, and Acetous Fermentation -- 1837	17	91
Manufacture of Paper and Paper-Pulp -- 1871	17	92
Processes for Making Beer -- 1877	17	93
Processes for Mashing Grain -- 1878	17	94
Processes for Obtaining Pure Yeast and Producing Specific Fermentation -- 1878	17	95
Processes for Preparing Yeast -- 1879	17	96
Processes for Treating Grain -- 1876	17	97
Processes of Brewing -- 1874	17	98
the Art of Distilling -- 1841	17	99
the Generation of Ozone, and In Treating Liquids with the Same -- 1872	17	100
the Manufacture of Alcoholic Spirits from Tomatoes -- 1868	17	101
the Manufacture of Beer and Yeast -- 1873	17	102
the Manufacture of Malt Sirups or Extracts -- 1877	17	103
the Manufacture of Spirits -- 1869	17	104
the Manufacture of Whisky -- 1874	17	105
the Manufacture of Yeast -- 1870	17	106
the Manufacture of Yeast -- 1871	17	107
the Manufacture of Yeast and in the Application of the Same in Mashing and Brewing -- 1871	17	108
the Manufacture of Yeast for Distillers -- 1870	17	109-110
the Preparation of Vegetable Fiber -- 1864	17	111
Yeast Compounds -- 1878	17	112
Yeast for Brewers and Others -- 1872	17	113
Yeast Substitutes -- 1878	17	114
Connection with the Manufacture of Alcohols and Acetone -- 1925	17	115
or Relating to Fuels for Internal Combustion Engines -- 1931	17	116
the Production of Alcohol and of Pressed Yeast by the Aid of Sugar Forming Organisms -- 1901	17	117
	Box	Folder
Insulating and Cooling Composition for Electric Devices -- 1935	17	118
Interdissolutions d'hydrocarbures lourds et d'hydrocarbures legers en presence ou non d'alcools -- 1921	17	119
Internal Remedy -- 1899	17	120
Invertase Preparation and Method of Making the Same -- 1933	17	121
Leaven -- 1895	17	122
Low-Alcohol Yeast Process -- 1923	17	123-129
Making Blended Fuels -- 1935	17	130
Making Compressed Yeast -- 1889	17	131
Making Dough and Bread -- 1933	17	132
Malting of Cereals -- 1933	17	133
Malting Process -- 1903	17	134
Malting Process -- 1908	17	135
Malt Sirup and Process of Preparing the Same -- 1926	17	136
Manufacture and Production of a Nutrient Medium for Use in Fermentation Processes -- 1912	17	137
Manufacture of
	Box	Folder
Alcohol -- 1899	17	138
Alcohol -- 1929	17	139
Alcohol and By-Products and Apparatus Therefore -- 1910	17	140
Baking Yeast -- 1930	17	141
Beer -- 1880	17	142
Beer -- 1893	17	143
Burton Salts -- 1915	17	144
Butyric Acid -- 1922	17	145
Cellulose From Raw Vegetable Materials Containing Cellulose Fibers -- 1914	17	146
Crypto-Malt -- 1895	17	147
Diastase -- 1915	17	148
English Beers or Malt Liquors -- 1906	17	149
Fermented Liquors -- 1896	17	150
Fermented Liquors -- 1902	17	151
Fermented Liquors -- 1903	17	152
Fermented Liquors -- 1910	17	153
Furfurol -- 1919	17	154
Furfural -- 1934	17	155
Glycerine -- 1935	17	156
Hopped, Alcohol Reduced Fermented Beverages -- 1930	17	157
Leavened Bread -- 1926	17	158
Malt -- 1913	17	159
Malt Extract -- 1933	17	160
Paper, etc. -- 1883	17	161
Pressed Yeast -- 1916	17	162
Yeast -- 1937	17	163
Proteolytic Enzymes by Means of Microorganisms -- 1932	17	164
Sirup from Cane-Juice -- 1882	17	165
Solvents by Fermentation -- 1935	17	166
Starch -- 1926	17	167
Tanning Operations -- 1934	17	168
Textile Fibers -- 1931	17	169
Whisky, Gin or Other Spirits -- 1902	17	170
Whisky, Gin or Other Spirits -- 1904	17	171
Wood Pulp -- 1933	17	172
Wood Pulp and By-Products -- 1925	17	173
Yeast -- 1892	17	174
Yeast -- 1925	17	175
Yeast -- 1926	17	176-177
Yeast -- 1929	17	178
Yeast --- 1933	17	179-181
Yeast, Especially by the Aeration Process -- 1928	17	182
Yeast of High Enzymatic Activity -- 1934	17	183
	Box	Folder
Mashing Process -- 1909	17	184
Material Treatment Method, Apparatus, and System -- 1935	17	185
Means for and Method of Converting Starchy Material into Sugar -- 1894	17	186-187
Melange carburant a jourter aux combustibles liquides pour l'alimentation des moteurs a explosion -- 1934	17	188
Melange carburant pour moteurs -- 1934	17	189
Melange carburants stables -- 1933	17	190
Melanges ternaires formes d'essence, d'alcool et d'untiers solvant a l'usage de carburant pour moteurs -- 1935	17	191
Memorandum Alcohol Motor Fuels -- 1937	17	192
Memorandum Re Chemical Foundation Projected Patent Appln. Situation -- 1936	17	193
Method for Producing Fibrous Cellulose from Plant Stalks and Utilization of Such Fibrous Cellulose -- 1936	17	194
Method for the Manufacture of Furfural and Volatile Organic Acids from Extracted Corncob Pentosan -- 1920	17	195
Method for the Precipitation and Preparation of Compressed Yeast -- 1923	17	196
Method of
	Box	Folder
and Apparatus for Making Certain Fermented Beverages -- 1893	17	197
Causing the Germination of Grain -- 1904	17	198
Converting Wood Into Mucic Acid -- 1931	17	199
Converting Wood into Sugar and Other Products -- 1921	17	200
Converting Wood into Sugar and Other Products -- 1931	17	201
Cooling Worts During Fermentation -- 1929	17	202
Dehydrating Alcohol -- 1936	17	203
Growing Yeast -- 1930	17	204
Increasing the Fermentation Property of Yeast -- 1913	17	205
Influencing the Speed of Enzymatic Reactions -- 1933	17	206
Inhibiting Gum Formation in Stored Hydrocarbon Motor Fuels -- 1938	17	207
Loosening Vegetable Fibers -- 1927	17	208
Making an Invertase Preparation -- 1935	17	209
Making invertase Preparations -- 1933	17	210
Making Alcohol -- 1930	17	211
Making Yeast -- 1892	17	212
Making Yeast -- 1896	17	213
Malting Rice -- 1902	17	214
Manufacturing Yeast -- 1923	17	215
Manufacturing Yeast -- 1930	17	216
Manufacturing Yeast -- 1931	17	217
Manufacturing Yeast -- 1932	17	218
Manufacturing Yeast from Molasses -- 1897	17	219
Obtaining Malt Enzymes and Beverage -- 1931	17	220
Preparing Minim-Alcoholic Beverages -- 1918	17	221
Preparing Malt for Brewing -- 1892	17	222
Preparing Preservable Yeast Preparations -- 1931	17	223
Producing Alcohol -- 1944	17	224
Producing Alcohol from the Waste Sulfite-Cellulose Lyes -- 1912	17	225
Producing Alcohol and Yeast -- 1898	17	226
Producing Butanol and Acetone by Fermentation -- 1931	17	227
Producing Dry Yeast -- 1912	18	1
Producing Ferments -- 1892	18	2
Producing Light - Colored Sirups -- 1950	18	3
Propagating Yeasts -- 1927	18	4
Steeping Grain -- 1904	18	5
Treating Fibrous Materials for Paper-Stock, etc. -- 1882	18	6
Treating Hydrocarbons -- 1937	18	7
Treating Molasses -- 1928	18	8
Treating Substances Used in Fermenting Industry -- 1924	18	9
Yeast Manufacture -- 1929	18	10
Yeast Production -- 1929	18	11
	Box	Folder
Microorganisms - "Production of Bacterial Growth Stimulants by Heating the Medium Under Pressure" -- 1931	18	12
Microorganisms - "Sugar-Tolerant Yeasts in Chocolate-Coated Creams" -- 1927	18	13
Mineral Oil and Anti-Oxidant Agent and Process -- 1931	18	14
Mineral Oil Composition -- 1930	18	15
Minim Alcohol Beverage -- 1931	18	16
Mode de traitement d'un combustible liquide hydro-carbone -- 1931	18	17
Motor Fuel -- 1935	18	18
Motor Fuels -- 1938	18	19
Misc. -- undated	18	20
Non-Intoxicating Fermented Beverage and Process of Making the Same -- 1917	18	21
Nouveau Carburant -- 1930	18	22
Nouveau Carburant -- 1937	18	23
Oil Composition and Process of Retardment Developing of Rancidity Therein -- 1928	18	24
Oil-Insulated Electrical Device -- 1930	18	25
Packing for Fractionating Columns and the Like -- 1936	18	26
Paper Made From the Fiber of the Cotton-Plant -- 1882	18	27
Paper Making Process -- 1935	18	28
Patent Policies -- 1934, 1938	18	29
Perfectionnements approtes a la catalyse des hydrocarbures lourds ou legers, en vue de l'alimentation, directe ou indirecte, des moteurs a combustion interne et autres applications -- 1930	18	30
Perfectionnements apportes aux procedes pour la conversion des hydrocarbures -- 1933	18	31
Perfectionnements aux combustibles liquides pour moteurs -- 1931	18	32
Perfectionnements aux combustibles pour moteurs et a leur fabrication -- 1929	18	33
Perfectionnements aux combustibles utilises dans les moteurs -- 1930	18	34
Plastic Product and Process of Producing Same -- 1933	18	35
Preparation of Allyl Alcohol -- 1933	18	36
Preparation of Beverages -- 1910	18	37
Preparation of Yeast
	Box	Folder
1902	18	38
1903	18	39-40
1918	18	41
1928	18	42
1930	18	43
	Box	Folder
Preparing and Making Moto -- 1894	18	44
Preparing and Making Taka-Koji -- 1894	18	45
Preparing and Making Taka-Moyashi -- 1894	18	46
Preparing Fermented and Distilled Liquids, Extracts, and Solutions -- 1893	18	47
Preparing Pressed Yeast -- 1896	18	48
Preparation of Normal Propyl Alcohol -- 1934	18	49
Preparing and Making Fermented Alcoholic Liquors -- 1894	18	50
Preparing Pressed Yeast -- 1890	18	51
Preservation of Oils -- 1927	18	52
Preservation of Oils -- 1930	18	53
Preservation of the Development of Rancidity in Vegetable Oils -- 1931	18	54
Procede d' amelioration de combustibles moteurs -- 1928	18	55
Procede d' amelioration des carburants dans les moteurs a explosion ou a combustion interne -- 1931	18	56
Procede d' amelioration des essences pour moteurs a explosion -- 1932	18	57
Procede de fabrication d'un carburant anti-detonant et moyen pour sa realisation -- 1934	18	58
Procede de fabrication d'un liquide utilisable notamment comme carburant et obtenu au moyen d'alcool et de benzol et leurs homologues melanges eventuellement a de l'eau -- 1934	18	59
Procede de preparation de combustibles a haut pouvoir antidetonant pour moteurs -- 1933	18	60
Procede de preparation de combustibles a pouvoir antidetonant eleve pour moteurs -- 1936	18	61
Procede de preparation de combustibles pour moteurs -- 1932	18	62
Procede de preparation d'un combustibles -- 1934	18	63
Procede de preparation d'un nouveau combustible pour moteurs a explosion avec de l'alcool a 92-96% -- 1933	18	64
Procede de preparation, par voie chimico-thermiquz d'un carburant antidetonant pour mateurs a explosion -- 1933	18	65
Procede de production d'un combustible alcoolique -- 1929	18	66
Procede de raffinage de combustibles liquides pour moteurs -- 1934	18	67
Procede de stabilisation, en presence de metaux tels que le cuivre, des produits fromes par l'introduction de composes organiques azotes dans les hydrocarbures tels que les essences de petrole ou dans les melanges d'essence et d'alcool -- 1934	18	68
Procede destine a ameliorer la combustion des ydrocarburers liquides -- 1936	18	69
Procede de traitement d'huiles grasses -- 1930	18	70
Procede de traitement d'hydrocarbures -- 1936	18	71
Procede d'ionisation du melange des moteurs a combustion interne -- 1933	18	72
Procede d'obtention d'essences carburantes -- 1933	18	73
Procede et agents pour augmenter la capacite de melange de l'alcool avec des hydrocarbures -- 1928	18	74
Procede et appareil pour la fabrication des petroles, essences et derives -- 1934	18	75
Procede et dispositif pour ameliorer la combustion dans les moteurs a combustion interne ou a explosions -- 1936	18	76
Procede et dispositif pour deceler et doser l'alcool contenu dans des hydrocarbures -- 1935	18	77-78
Procede pour alimenter les moteurs a combustion interne et aussi pour preparer un combustible utlisiable dans ces moteurs -- 1936	18	79
Procede pour enrichir les carburants connus et produits obtenus suivant ce procede -- 1932	18	80
Procede pour favoriser les fermentations -- 1935	18	81
Procede pour la fabrication d'un combustible a base d'alcool -- 1928	18	82
Procede pour l'amelioration des hydrocarbures comme carburants pour moteurs a explosion -- 1930	18	83
Procede pour la preparation de carburants -- 1934	18	84
Procede pour la production d'hydrocarbures -- 1931	18	85
Procede pour la transformation de melanges d'alcools et d'hydrocarbures gras ou aromatiques, cn combustibles pour moteurs a explosions -- 1935	18	86
Procede pour l'obtention de combustibles non detonnants du genre de l'essence minerale -- 1930	18	87
Procede pour rendre le petrole liquide inflammable avec flamme bleue a la temperature ordinaire -- 1931	18	88
Procede auxiliares pour faciliter l'inflammation du carburant dans les moteurs a explosions -- 1936	18	89
Procede pour la fabrication de carburants destines a etre utilises dans les moteurs a explosion -- 1932	18	90
Process and Apparatus for Preparing Grain or Cereals to be Used in Brewing and Distilling -- 1886	18	91
Process and Apparatus for the Continuous Distillation of Alcohol -- 1924	18	92
Process and Appliance for Fermenting Sacchariferous Liquids -- 1931	18	93
Process Applicable to Starch Manufacture -- 1937	18	94
Process Applicable to Starch Manufacture -- 1940	18	95
Processes of Manufacturing Yeast -- 1929	18	96
Process for
	Box	Folder
Aerobic Fermentation -- 1929	18	97
Continuous Rectification of Crude Methyl Alcohol -- 1931	18	98
Fermenting Beer, Ale, and Other Fermentable Materials -- 1908	18	99
Fractionating Liquids -- 1918	18	100
Making Alcohol -- 1909	18	101
Making Edible Malt and Sprouts -- 1923	18	102
Making Fresh Yeast Lasting -- 1926	18	103
Making Sulphite Pulp from Douglas Fir and Other Resinous Conifers -- 1931	18	104
Manufacturing of Propantriol from Sugar -- 1921	18	105
Manufacturing of Propantriol from Sugar -- 1924	18	106
Manufacturing of Yeast -- 1930	18	107
Manufacturing Yeast -- 1931	18	108
Manufacturing Yeast -- 1933	18	109
the Manufacture of Yeast Producing High Yields -- 1930	18	110
Producing Alcoholic Spirits -- 1906	18	111
Producing Butyl and Isopropyl Alcohols -- 1929	18	112
Producing Butyl and Isopropyl Alcohols -- 1933	18	113
Producing Diastatic Product -- 1913	18	114
Producing Diastatic Product -- 1918	18	115
Producing, from Straw, a Liquid Suitable for the Production of Alcohol -- 1909	18	116
Producing Gasoline and Other Hydrocarbons -- 1926	18	117
Producing Yoghurt Beer -- 1917	18	118
Producing Yeast -- 1923	18	119
Production of Yeast -- 1925	18	120
the Activation of Proteases -- 1931	18	121
the Manufacture of Alcohol -- 1930	18	122
the Manufacture of Alcohol from Grain in Open Vats with the Employment of Saccharifying Mucors -- 1918	18	123
the Manufacture of Alcohols and Acetone -- 1925	18	124
the Manufacture of Compressed Yeast -- 1923	18	125-126
the Manufacture of Compressed Yeast and the Product -- 1923	18	127
the Manufacture of Fosel-Oil and Its Components -- 1908	18	128
the Manufacture of Spirit and Yeast, Particularly by Working Up Molasses -- 1930	18	129
the Manufacture of Spirits -- 1908	18	130
the Manufacture of Yeast -- 1923	18	131-134
the Manufacture of Yeast -- 1929	18	135
the Manufacture of Yeast -- 1930	18	136-137
the Manufacture of Yeast from Molasses -- 1916	18	138
the Manufacture of Yeast -- 1929	18	139-140
Manufacturing Medicinal Extract Wine -- 1933	18	141
the Preparation of Acetyl-Methyl-Carbinol and Diacetyl -- 1933	18	142
the Preparation of Mannite from Natural Musts -- 1916	18	143
the Preparation of Organic Compounds by Means of Bacterial Oxidation -- 1931	18	144
the Preparation of 2, 3-Btylene-Glycol from Carbohydrates -- 1933	18	145
Producing Butyl Alcohol and Acetone by Fermentation -- 1933	18	146
Producing Diastatic Product -- 1928	18	147
Producing Tasteless Roasted Malt Decoctions -- 1905	18	148
Producing Yeast -- 1919	18	149
Simultaneously and Continuously Dehydrating and Rectifying Raw Ethyl Alcohol -- 1933	18	150
the Manufacture of Compressed Yeast -- 1920	18	151
the Manufacture of Yeast -- 1928	18	152-153
the Preparation and use of Food Substances for Vegetables, Mushrooms, Bacterias, Yeast, Molds, Mucors, and the Like -- 1923	18	154
the Preparation of Acetyl-Methyl-Carbinol and Diacetyl -- 1933	18	155
the Preparation of 2, 3-Butylene-Glycol from Carbohydrates -- 1933	18	156
the Production of Acetone -- 1919	18	157
the Production of a Ferment -- 1930	18	158
the Production of Glycerin -- 1926	18	159
the Production of Kvass -- 1909	18	160
the Propagation of Culture Germs for the Inoculation of Nitrogen Gathering Plants, Such as Legumes -- 1933	18	161
the Production of Higher Alcohols, Particularly Butyl Alcohol, from Ethyl Alcohol -- 1935	18	162
the Extraction of Root Starches -- 1939	18	163
the Utilization of Waste Sulphite Liquor -- 1917	18	164
Treating Amylaceous Substances -- 1917	18	165
Treating Fiber-Yielding Materials -- 1912	18	166
Treating Pulp for Making Paper and Like Materials -- 1915	18	167
Treating Yeast -- 1933	18	168
Brewing Beer -- 1919	18	169
Artichoke Tuber -- 1937	18	170
Accelerating Alcoholic Fermentation and Recovering the Volatile Gaseous Products -- 1901	18	171
Process of
	Box	Folder
Alcoholic Fermentation -- 1915	18	172
and Apparatus for Making Denatured Spirit -- 1916	18	173
and Apparatus for Manufacturing Pure Yeast -- 1892	18	174
and Apparatus for Producing Gasoline and Other Light Hydrocarbons from Heavier Hydrocarbons -- 1928	18	175
Brewing -- 1914	18	176
Brewing Beer of Low Alcoholic Contents -- 1910	18	177
Brewing Soy -- 1906	18	178
Carrying Out Fermentations and Similar Biochemical Reactions By Means of Bacteria -- 1933	18	179
Catalysis -- 1921	18	180
Carrying Through the Fermentation of Bottom-Fermented Beer Under Pressure -- 1904	18	181
Cleaning Molasses for Manufacturing Compressed Yeast -- 1927	18	182
Combined Denaturalization and Carburation of Alcohol -- 1908	18	183
Converting Chemical Fertilizers to Yeast and Other Organic Substances -- 1927	18	184
Converting Starchy Material Into Sugar -- 1896	18	185
Converting Starchy Material Into Sugar -- 1910	18	186
Converting Wort Into Beer -- 1902	18	187
Converting Wort Into Beer -- 1903	18	188
Cooling Wort -- 1906	18	189
Disintegrating Fibrous Substances -- 1890	18	190
Effecting Bacterial Fermentation Without Multiplying the Cells -- 1933	18	191
Fermentation for Use in Manufacture of Yeast and Spirit -- 1910	18	192
Fermenting -- 1892	18	193-194
Fermenting Sulfite Liquor -- 1918	18	195
Fermenting Wort -- 1906	18	196
Growing Yeast -- 1932	18	197
Improving Brewing Waters -- 1930	18	198
Liberating and Separating Fibers -- 1905	18	199
Making Alcohol -- 1886	18	200
Making Alcohol -- 1912	18	201
Making Yeast Stimulant -- 1927	18	202
Making Beer -- 1893	18	203
Making Beer -- 1894	18	204
Making Beer -- 1915	18	205-206
Making Brandy-Mash and Composition for Same -- 1893	18	207
Making Brewers' Yeast -- 1882	18	208
Making Caramel Malt -- 1893	18	209
Making Compressed Yeast -- 1926	18	210
Making Diastatic Enzyme -- 1894	18	211-212
Making Ethyl Alcohol from Galactose -- 1923	18	213
Making Low-Alcoholic Content Beverage -- 1924	18	214
Making Methyl Alcohol -- 1926	18	215
Making Proteolytic Enzymes -- 1926	18	216
Making Quick Malt -- 1891	18	217
Making Whisky -- 1892	18	218
Making Whisky -- 1893	18	219
Making Yeast -- 1891	18	220
Making Yeast -- 1895	18	221
Malting -- 1893	18	222
Malting -- 1907	18	223
Malting -- 1910	18	224
Malting -- 1912	18	225
Malting Grain -- 1933	18	226
Malting Rice -- 1932	18	227
Manufacturing Alcohol by Fermentation -- 1926	18	228
Manufacturing Beer -- 1899	18	229
Manufacturing Diastases and Toxins by Oxidizing Ferments -- 1917	18	230
Manufacturing Dextrine Corn-Malt -- 1889	18	231
Manufacturing Distillable Spirits by Fermentation -- 1933	18	232
Manufacturing Fermented Beverages -- 1909	18	233
Manufacturing Glycerol -- 1918	18	234
Manufacturing Fuel-Oil -- 1914	18	235
Manufacturing Malt -- 1914	18	236
Manufacturing Non-Alcoholic Beer -- 1905	18	237
Manufacturing Paper-Pulp -- 1917	18	238
Manufacturing Yeast -- 1894	18	239
Manufacturing Yeast -- 1907	18	240
Manufacturing Yeast -- 1916	18	241
Manufacturing Yeast -- 1923	18	242
Manufacturing Yeast -- 1926	18	243-244
Manufacturing Yeast -- 1929	18	245
Obtaining Absolute Alcohol -- 1926	18	246
Obtaining Absolute Alcohol -- 1928	18	247
Obtaining Alcohol from Sulfite Liquors -- 1918	18	248
Obtaining Alcohols -- 1926	18	249
Preparing Bakers' Yeast -- 1882	18	250
Preparing Butyl Alcohol-Acetone Seed Mashes -- 1932	18	251
Preparing Hop Flavored Malt Extract in Powdered Form -- 1932	18	252
Preparing Malt -- 1901	18	253
Preparing Malt by Means of Chloride of Lime or Other Hypochlorite Salts -- 1908	18	254
Preparing Yeast-Nutrient Solutions and of Manufacturing Yeast There from -- 1926	18	255
Preserving Yeast -- 1926	18	256
Pretreating Dried Yeast to Increase the Baking Strength -- 1923	18	257
Producing Acids by Fermentation of Cellulosic Materials -- 1932	18	258
Producing Butyl Alcohol -- 1933	18	259
Producing Butyl Alcohol and Acetone, and Ethyl Alcohol -- 1932	18	260
Producing Caramel-Malt -- 1890	18	261
Producing Cellulose -- 1932	18	262
Producing Coloring - Malt -- 1901	18	263
Producing Ethyl Alcohol from Wood or Other Cellulose Containing Materials -- 1932	18	264
Producing Ethyl Acetate, Ethyl Alcohol and Other Products by Fermentation -- 1932	18	265
Producing Ethylene -- 1922	18	266
Producing Fuels -- 1935	18	267
Producing Fusel Oil by Fermentation -- 1929	18	268
Producing Glycerol by Fermentation -- 1925	18	269
Producing Lactic Acid from Sugar - Containing by Means of Lactic-Acid Bacteria -- 1927	18	270
Producing Yeast -- 1929	18	271
Producing Yeast Without Alcohol -- 1933	18	272
Promoting Fermentation -- 1913	19	1
Production and Collection of Fertile Yeast from Juices of Grains, etc. -- 1883	19	2
Pulping Plant Tissues by Means of a Volatile Base -- 1931	19	3
Purifying Juices Containing Inuline and Laevuline -- 1921	19	4
Recovering Used Paper -- 1921	19	5
Removing Alcohol from and Purifying Beer -- 1912	19	6
Separating Yeast-Cells -- 1892	19	7
Softening Vegetable Fiber -- 1893	19	8
Steeping and Washing Grain -- 1901	19	9
Steeping and Grain -- 1902	19	10-11
Treating and Aging Wort -- 1906	19	12
Treating Beer and Analogous Liquids -- 1893	19	13
Treating By-Product Liquors from Wood Sulfite Plants -- 1918	19	14
Treating Cassava and Producing Alcohol Therefrom -- 1910	19	15
Treating Gasoline and the Product Thereof -- 1935	19	16
Treating Liquors from Wood-Pulp Sulfite Plants -- 1918	19	17
Treating Oils and Other Glycerides -- 1930	19	18
Treating Textile Vegetable Fibers -- 1895	19	19
Treating Vegetable Fibers -- 1913	19	20
Treating Waste Sulfite-Cellulose Liquors -- 1918	19	21
Treating Yeast -- 1913	19	22
Washing Yeast -- 1892	19	23
Yeast Manufacture -- 1926	19	24
Production of
	Box	Folder
Alcohol -- 1923	19	25
Butyl Alcohol and Acetone by Fermentation -- 1931	19	26
Butyl Alcohol and Acetone by Fermentation -- 1933	19	27-29
Butyl Alcohol and Acetone by Fermentation -- 1935	19	30
Butyl and Isopropyl Alcohols -- 1933	19	31
Cellulose Pulp -- 1932	19	32
Chemical Wood Pulp -- 1931	19	33
Enzymes for Use in the Manufacture of Bread -- 1928	19	34
Ethyl Alcohol from Artichoke Tubers -- 1937	19	35
Furfural -- 1937	19	36
Glycerin by Fermentation -- 1922	19	37
Glycerin by Fermentation -- 1928	19	38
Glycerin by Fermentation -- 1929	19	39
Glycerol by Fermentation -- 1935	19	40
Making Alcoholic Distilled Liquor -- 1893	19	41
Mucic Acid -- 1929	19	42
Nitriles -- 1934	19	43
Nutrient Media for Growing Yeast -- 1925	19	44
Producing Pure Cultivated Pressed Yeast -- 1893	19	45
Sterols and Other Valuable Substances from Yeast and Like Micro-Organisms -- 1932	19	46
Sulphite Pulp -- 1930	19	47
Textile Material -- 1916	19	48
Whisky-Making -- 1893	19	49
Yeast Food -- 1922	19	50
	Box	Folder
Produit ameliorant les carburants -- 1933	19	51
Produit anti-detonant et procede d'utilisation duproduit dans les moteurs a l'explosion -- 1936	19	52
Produits nouveaux pour amelioration des carburants -- 1933	19	53
Promotion of Fermentation -- 1932	19	54
Promotion of Fermentation -- 1933	19	55
Propionic Acid Fermentation -- 1932	19	56
Purification of Bast Fibers -- 1934	19	57
Purifying Yeast -- 1930	19	58
Quick Method for Brewing Soy -- 1921	19	59
Re: Ammonia Pulping Situation -- 1937	19	60
Recovery of Ammonia from Cook Liquor -- 1934	19	61
Separation of Cyclic Alcohols from Their Ketones -- 1936	19	62
Soap Manufacture -- 1931	19	63
Canada-Solvent Refining of Hydrocarbon Oil and Hydrocarbon Oil Refining Process -- 1935 [and n.d.]	19	64
Soybean Compound for Aging Grain Distillate -- 1936	19	65
Stable Mixture of Petroleum Hydrocarbons and Alcohols -- 1930	19	66
Starch Manufacturing Process -- 1943	19	67-68
Substances additionnelles pour carburants -- 1930	19	69
Synthetic Resins -- 1938	19	70
Systeme de modification des proprietes combustibles del'huile a gaz (gas oil) et, en general, de tous les combustibles dits lourds -- 1933	19	71
Taka-Koji Ferment and Process of Preparing and Making Same	19	72
Tan Extract and Mode of Making Same -- 1931	19	73
Tobacco Composition and Method of Making It -- 1949	19	74
Treating Sulphite Liquor Spirit -- 1931	19	75
Treatment of Hydrocarbon Oils -- 1938	19	76
Treatment of Molasses for Yeast Growth -- 1932	19	77
Treatment of Motor Fuel -- 1932	19	78
Treatment of Steep Water -- 1933	19	79
Treatment of Textile Fabrics or Fibers -- 1924	19	80
Treatment of Wood and Recovery of Organic Products Therefrom -- 1920	19	81
Utilization of Sulphite Cellulose Waste Liquor -- 1929	19	82
Wheat Starch Process -- 1947	19	83
Yeast and Its Manufacture -- 1929	19	84
Yeast and Process of Making the Same -- 1922	19	85
Yeast and Method of Making the Same -- 1930	19	86
Yeast and Process of Preparing and Utilizing the Same -- 1907	19	87
Yeast Compound and Process of Making the Same -- 1924	19	88
Yeast Fermentation Process -- 1935	19	89
Yeast Food and Process of Making Same -- 1924	19	90
Yeast Manufacture -- 1930	19	91
Yeasting Process -- 1899	19	92
Yeast Propagation Controlling Method -- 1932	19	93
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VI. Reports Scope and Contents note Miscellaneous published and unpublished reports on various Chemurgic subjects, including farm industrial companies with which Christensen had an interest. Arranged alphabetically.
	Box	Folder
Anti-Knock Properties of Gasoline-Alcohol Blends -- [n.d.]	16	27
A Survey of Proposed Operations at Amboy -- [n.d.]	16	28
Biochemical Method in use for the Determination of Volatile Acids as Acetic, Proprionic, Butyric, Valeric, for Alcohols as Ethyl, Propyl, Butyl, for Non-Volatile Acids as Lactic, and for Non-Fermentable Residuals as Sugar and Insoluble Organic Matter -- 1929	16	29
Chemical Weed Control in Nebraska -- 1948	16	30
Chemurgic Development of Nebraska -- 1949	16	31
Concrete Pavement for Parking Areas -- 1953	16	32
Fermentation of Hulled Oats -- [n.d.]	16	33
Glycerol Fermentation of Wheat Starch Supply -- [n.d.]	16	34
Information On Industrial Alcohol -- 1922	16	35
[Miscellaneous]
	Box	Folder
1926, 1928	16	36
Abstracts Etc. for Filing -- Various Dates	16	37
	Box	Folder
Nebraska Chemurgy Project Recommended Program for 1945-1947 -- 1945	16	38
[No Title] - [1934 or Later]	16	39
O.D. Reports -- November 1936	16	40
Progress and Prospects Seventh Annual Report 1950 -- 1950	16	41
Report of Visit to the S.D. Warren Co., Cumberland, Maine Starch in Clay Coatings and The Effect of Inorganic Salts -- [n.d.]	16	42
Research in Review 1949 Sixth Report The Sugar Research Foundation -- 1949	16	43
Rubber War Changes in Industry Series Report No. 6 -- 1944	16	44
Spencer Kellogg and Sons, Inc. -- [n.d.]	16	45
Studies on Iron Pentacarbonyl	16	46
Substitute Motor Fuel Economy of Europe -- [n.d.]	16	47
Summation of the Accomplishments of Farm Crops Processing Corporation -- [n.d.]	16	48
The Agrol Opportunity -- 1939	16	49
The Estimation of Butanol, Acetone and Ethanol In Mash Fermented With CI. Acetobutylicum -- [n.d.]	16	50
The Fermentation of Rice -- [n.d.]	16	51
The Fermentation of Rye	16	52
The Fermentation of Wheat -- [n.d.]	16	53
The Production of Combustible Gases from Cellulosic Materials and Sewage Wastes -- 1934	16	54
The Production of Gluconic Acid by Microorganisms -- [1934 or Later]	16	55
The Stainless Prince of Steels -- [n.d.]	16	56
"The Unique Chemistry of Castor Oil" -- [1940 or Later]	16	57
The Use of Barley As Raw Materials for the Production of Ethanol by Fermentation	16	58
U.S. and Canadian Petrochem Plants -- 1953	16	59
Use of Artichokes for Alcohol	16	60
Use of Soy Bean Extract for Saccharification of Raw Grain -- [n.d.]	16	61
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VII. Manuscripts and Draft Manuscripts Scope and Contents note Various drafts of materials authored by Christensen, dated in the late 1940s. Arranged alphabetically.
	Box	Folder
"Commercial Production and Use of Mold Bran" -- [1946 or Later]	19	94
Manuscripts in Progress -- [n.d.]	19	95
"Saccharification of Grain Mashes for Alcohol Fermentation by Acid Fungal Amylase" -- [1946 or Later]	19	96
"The Production of Chemical from Starch by Fermentation Processes" [Review] -- [1945 or Later]	19	97
"The Utilization of Corn Cobs by Fermentation" [B.S.] -- 1923	19	98
[n.t.] [List of Titles] -- [1945 or Later]	19	99
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VIII. General Subjects Scope and Contents note Files of materials not identified by content for placement in other series. Subjects vary and relate to subjects within other series, sometimes abstractly. Of interest is a 13 folder set of congressional hearings materials on industrial alcohol and synthetic rubber. Collection of theses by other students of chemurgy is noteworthy. Arranged alphabetically by folder title.
	Box	Folder
1951 Biochemistry Chemistry Biology -- 1951	19	100
Agricultural Chemicals 1954	15	69
Alcohol from Malt -- [n.d.]	19	101
"Anti-Knock Characteristics of Natural Gasoline with Reference to Grading" -- 1932	19	102
Armco Products for Engineering Construction -- 1947	19	103
Artichokes #2 -- [n.d.]	19	104
Artichokes #5 -- [n.d.]	19	105
Bacteriological Abstracts
	Box	Folder
1923, 1926, 1929, 1930	19	106
1926	19	107
1926, 1927, 1928, 1929, 1930, 1938	19	108
1926, 1927, 1929	19	109
1926, 1929, 1930	19	110
1926, 1929, 1930	19	111
1926, 1929, 1930, 1938	19	112
1927, 1928, 1929, 1930	19	113
1927, 1928, 1929, 1930	19	114
1927, 1929, 1930	19	115
	Box	Folder
Chemical Abstracts -- 1928, 1929, 1930	19	116
Bacteriological Abstracts --
	Box	Folder
1928, 1930, 1931, 1932	19	117
1929	19	118-120
1929, 1930	19	121-122
	Box	Folder
Bausch & Lomb Direct Vision Spectroscopes -- 1945	19	123
Castor Bulletins 1950-1953	15	70
Chemical Companies and Personnel 1953-1954	15	71
Chemical Foundation, Inc. - Opinions - U.S. District Court, U.S. Circuit Court of Appeals, Supreme Court -- 1930	19	124
Chlorphyll undated	15	72
Commercial Solvents Corporations U.S.A. Description of Products -- [n.d.]	19	125
Congressional Hearings
	Box	Folder
"Industrial Alcohol and Synthetic Rubber" -- 1942	19	126
"Industrial Alcohol as a Solution to the Farm Problem" -- 1945	19	127
"1945 Extension of Reciprocal Trade Agreements Act Part 18" -- 1945	19	128
		Box
"Use of Alcohol from Farm Crops - Industrial Alcohol		20
	Box	Folder
1949	20	1
and Synthetic Rubber Part 1 -- 1942	20	2
and Synthetic Rubber Part 2 -- 1942	20	3
and Synthetic Rubber Part 3 -- 1942	20	4
and Synthetic Rubber Part 5 -- 1943	20	5
and Synthetic Rubber Part 6 -- 1943	20	6
and Synthetic Rubber Part 7 -- 1943	20	7
and Synthetic Rubber Part 8 -- 1944	20	8
	Box	Folder
Diastatic Power -- 1939	20	9
Dow Chemical Company - [Various Dates]	20	10
Effect of Gasoline Volatility Changes on Automobile Road Performance" -- 1935	20	11
Enzymes 1948-1954	15	73
Ergenbnisse der Enzymforschung -- 1931	20	12
"Factors... Affecting the Gum Stabilities of Gasoline" -- 1935	20	13
Fats and Oils 1945-1954	15	74
Fats and Oils 1949-1954	15	74
Feeds and Feeding 1954	15	75
Fermentation Chemicals 1943-1954	16	83
Fertilizer Bulletins 1953, undated	16	84
Fuels and Engines 1936-1954	16	85
Grams Ethanol Per 100 ml At Indicated Specific Gravity 20°C -- 1940	20	14
Improving Flavor in Foods -- 1948	20	15
"Influence of Automobile Design on the Use of National Gasoline" -- 1936	20	16
Instructions for Installation, Operation and Maintenance of Heavy Duty Chem-O-Feeder -- [n.d.]	20	17
Laboratory Experiments in Organic Chemistry by Leland A. Underkofler -- 1942	20	18
"Laboratory Tests of Motor Fuels" -- 1937	20	19
"Light Hydrocarbons Found in National Gasolines Maintain Rating in New Antiknock Tests" -- 1933	20	20
"Measurements Method and Means of Preventing Formation of Undesirable Gum in Gasoline" -- 1933	20	21
Midwest Farm Building Plan Service Materials List -- n.d.	20	22
Miscellaneous articles 1945-1954	16	86
"Natural Trends..." -- 1936	20	23
News Clippings and Releases
	Box	Folder
1928	20	24
1936	20	25
1937	20	26
1938	20	27
1939	20	28
n.d.	20	29
	Box	Folder
Notebook on Machining Stainless Steels -- 1946	20	30
Nutritional Charts for Medical and Other Specialists -- 1940	20	31
"Potential Valve of Motor Fuel as Determined by Octane Number and Total Volatility" -- 1934	20	32
Production of Absolute Alcohol by the HIAG-Method -- [n.d.]	21	1
Protective Coatings	16	87
Ratoweir Flow Splitters -- [n.d.]	21	2
Report of Rating Principal Chemist Examination -- 1939	21	3
"Report of Technical Committee A On Gasoline" -- 1932	21	4
Rubber and Elastamer 1942-1954	16	88
"Secretary of Agriculture [Letter] Federally Owned Plants and Facilities" -- 1946	21	5
"Secretary of Agriculture Letter Regional Research Laboratories" -- 1939	21	6
"Significance of Various Laboratory Tests Used in Motor Fuels" -- 1936	21	7
Solar Batteries 1954	16	89
Solexal Process 1938-1954	16	90
"Suggest Volatility Index for Motor Fuels as Aid in the Utilization of Light Hydrocarbons" -- 1933	21	8
"Technique in Reid Vapor Pressure Tests" -- 1932	21	9
The Family of Monsanto Plastics A Guide for Product Designers -- [n.d.]	21	10
"The Gum Stability of Gasolines" -- 1932	21	11
The House of Stainless Steel -- 1946	21	12
[Thesis] - The Influence of Time and Temperature on the Swelling of Glufen - Werner W. Duecker -- 1926	21	13
The Log Log Duplex Trig Slide Rule A Manual -- 1939	21	14
"The Patent Literature on Gum Inhibitors" -- 1937	21	15
The Preparation of Pure Soy Protein	21	16
Tractor-Mounted Weed Sprayer -- 1947	21	17
Union Solvents Corp. - "Transcript of Records - U.S. Circuit Court of Appeals" -- 1932	21	18
United State Department of Agriculture - Agriculture and National Defense -- 1941	21	19
Thesis
	Box	Folder
Alcohol by Thermophilic Fermentations	21	20
Butyl Alcohol Fermentation - Donker -- 1926	21	21
Fungal Analases as Saccharifying Agents in the Ethanol Fermentation of Starchy Materials -- 1942	21	22
Starr, Donald F., "The Biochemistry of Sluggish Butyl-Acetonic Fermentations" -- 1933	21	23
The Production of Alcohols by Thermophilic Fermentations - Matthew Velduis -- 1934	21	24
Underkofler, Leland A., "The Butyl-Acetonic Fermentation of the Sugars with Special Reference to Xylose" -- 1934	21	25
U.S. Works Progress Administration - Bibliography of Aeronautics -- 1937	21	26
[Various Figures] -- [n.d.]	21	27
Water Tolerance and Absorption -- [n.d.]	21	28
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IX. Miscellaneous Scope and Contents note An artificial series created by the archivist to place stray and loose materials not readily identifiable with other series materials. Arranged alphabetically.
	Box	Folder
Abstracts -- n.d.	21	29
Address Cards -- n.d.	21	30
Atchinson Agrol Company, Inc. -- 1938, n.d.	21	31
"Bacterial Analyses-Production on Wheat Bran" -- 1945	21	32
Christensen - Harding partnership 1950, 1953	17	232
"Evaluating Fungal Amylolytic Materials for Sacchrarifying Fermentation Mashes" -- 1948	21	33
Fritzsche Brothers, Inc. - Catalog -- March 1937	21	34
Influence of BuOH and Pontel upon Miscibility of Aqueous EtOH and Gasoline -- n.d.	21	35
Jerusalem Artichoke -- 1936	21	36
Motor Fuels from Farm Products -- 1939	21	37
National Aeronautics and Flight Plan magazine February 1955	17	228
[Nebraska Fuel Bill] -- 1939	21	38
Omaha Industrial Foundation 1953	17	231
"Parity Prices and Panty Tariffs" -- n.d.	21	39
Potatoes -- n.d.	21	40
Riggs' Class Record - Chemistry -- 1932-1935, undated	21	41
Tables -- undated	21	42
"The Chemical Composition of Some Sorghum Grains and the Properties of Their Starches" -- 1946	21	43
undated	21	44
Ruth Ellen Christensen School Records - RESTRICTED 1944-1945	21	55
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X. Farm Crops Processing Co. Scope and Contents note A notebook containing the business function of the Farm Crops Processing Co., an enterprise in which Christensen had an interest. Due to the deteriorated condition of the notebook, the materials have been removed and placed into five consecutive folders maintaining the original order of the notebook as it came to the archives.
[Notebook]
	Box	Folder
(1 of 5) 1943-1947	21	45
(2 of 5) 1943-1947	21	46
(3 of 5) 1943-1947	21	47
(4 of 5) 1943-1947	21	48
(5 of 5) 1943-1947	21	49
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XI. Audio-Visual Materials Scope and Contents note Photographic images of Christensen, his wife, his children, his cats, and unidentified individuals.
Photographs
	Box	Folder
Calamus River, Nebraska - scenes and scenes with people 1928	18	276
Cats	21	50
Bailor Manufacturing Co. undated	18	275
		Drawer
Farm Chemurgic Council Convention [oversize] 1936		OS 3
	Box	Folder
Houses	18	277
Iowa State College	18	278
Lake Union, Seattle Washington, Aerial View	18	279
Lincoln Memorial, Hodgenville, Kentucky 1930	18	290
Lincoln Park Zoo, Chicago, IL, 1926 1926	18	280
Manufacturing Plant and Trip images	18	281
Mission Dolores	18	282
Mississippi River at Davenport and Clinton, Iowa 1926, 1928	18	283
People. Christensen Children	21	51
People. Christensen, Eva (Patterson)	21	52
People. Christensen, Leo	21	53
People. Children. Unidentifed. Portraits. undated	17	233
People. Groups. Unidentified. Portraits undated	17	234
People. Men. Unidentified. Portraits	17	235
People. Unidentified	21	54
People. Women. Unidentified. Portraits	18	273-274
Scenes	18	284
Scenes and Scenes with People - Contact prints undated	18	285
Scenes with People	18	286-287
Turkey River - travel photographs	18	288
Washington, D.C. - travel photographs	18	289
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Scrapbooks
		Box
No. 1 Chemurgy and Agriculture related newsclippings, project accomplishments. -- 1940-1946, undated		22
No. 2 Chemurgy and Agriculture related newsclippings, project accomplishments. -- 1952-1954		23
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Oversized Materials		Drawer OS 3
Armenia Pulping Chart
Two alcohol conversation flow charts
Gateway Co. Flow Chart - production of furfural from corn cobs; production of alcohol furfural residue -- 1947
Return to Table of Contents »

Michigan State University Archives and Historical Collections

Leo M. Christensen Papers 00174

Table of Contents

Summary Information

Preferred Citation

Biographical Note

Scope and Contents note

Organization of the Papers

Administrative Information

Publication Information

Revision Description

Conditions Governing Access

Legal Status

Conditions Governing Use

Related Materials

Related Archival Materials

Controlled Access Headings

Corporate Name(s)

Genre(s)

Personal Name(s)

Subject(s)

Collection Inventory

I. Personal Materials

Scope and Contents note

II. Correspondence

Scope and Contents note

III. Notebooks

Scope and Contents note

IV. Published Materials

Scope and Contents note

V. Patent Materials

Scope and Contents note

VI. Reports

Scope and Contents note

VII. Manuscripts and Draft Manuscripts

Scope and Contents note

VIII. General Subjects

Scope and Contents note

IX. Miscellaneous

Scope and Contents note

X. Farm Crops Processing Co.

Scope and Contents note

XI. Audio-Visual Materials

Scope and Contents note

Scrapbooks

Oversized Materials

Leo M. Christensen Papers
00174