Album containing 52 black and white photographs documenting various aspects of the production process at the Welsbach Gas Light Company site located along the Delaware River in Gloucester City, New Jersey. From 1888 to…

General view of employees at work in the Bureau of Chemistry's Pharmacognosy Laboratory. Part of the U.S. Department of Agriculture, the Pharmacognosy Laboratory supervised the manufacture and distribution of crude…

Group photograph of unidentified personnel from the U.S. Department of Agriculture's Fixed Nitrogen Research Laboratory located in Washington, D.C.

The Fixed Nitrogen Research Laboratory (F.N.R.L.) was established at…

General view of male and female employees at work at the Dearborn Chemical Company's 35th Street laboratory facility and manufacturing plant. Founded in 1887, the Dearborn Chemical Company was a corporate ancestor of…

General view of the office of Laboratory Director Dudley Kimball French (center) at the Dearborn Chemical Company 35th Street laboratory facilities located in Chicago, Illinois. The female employees visible in the…

General view of E.J. Fox and K.S. Love at work in the Nitrogen Analytical Laboratory at the U.S. Department of Agriculture's Fixed Nitrogen Research Laboratory facilities located in Washington, D.C. Assorted glassware…

General view of employees at work in the library at the Dearborn Chemical Company 35th Street laboratory facilities located in Chicago, Illinois. The male employees are identified as C.C. Dennis (left) and A.H. Reynolds…

General view of employees at work in an office at the Dearborn Chemical Company's 35th Street laboratory facility and manufacturing plant. The employees seated at the desks are identified as John W. Brashears (left) and…

General view of male and female employees at work in an office space at the Dearborn Chemical Company 35th Street laboratory facilities located in Chicago, Illinois. While the two female employees closest to the camera…

Portrait of Dr. Sylvia Stoesser (1901-1991), the first female Ph.D. chemist employed at the Dow Chemical Company.

Sylvia Stoesser (nee Goergen) was born on July 18, 1901 in Buffalo, New York and earned her B.S. in…

General view of unidentified female employees at work in the stenographic office space at the Dearborn Chemical Company 35th Street laboratory facilities located in Chicago, Illinois. Founded in 1887, the Dearborn…

General view of employees E.P. Fager and Viola Suess at work in an office at the Dearborn Chemical Company's 35th Street laboratory facility located in Chicago, Illinois. An unidentified chemist, visible through the…

General view of Eva Vaughn (left) and an unidentified employee at work in an office space at the Dearborn Chemical Company 35th Street laboratory facilities located in Chicago, Illinois. Founded in 1887, the Dearborn…

Close-up view of employee Olive Bissell seated at her desk in the Dearborn Chemical Company's 35th Street laboratory facility and manufacturing plant. Founded in 1887, the Dearborn Chemical Company was a corporate…

General view of an office space at the Dearborn Chemical Company 35th Street laboratory facilities located in Chicago, Illinois. A partial view of one of the laboratory spaces is visible through the doorway. The…

General view of the laboratory office space at the Dearborn Chemical Company 35th Street laboratory facilities located in Chicago, Illinois. The employees seated at the desks are identified as A.H. Reynolds (left) and…

General view of a female employee analyzing unidentified substances in the Bureau of Chemistry's Pharmacognosy Laboratory. Part of the U.S. Department of Agriculture, the Pharmacognosy Laboratory supervised the…

An article written about Margarete von Wrangell (1877-1932). Wrangell was an agricultural chemist and known as Germany's first female full professor in German. While she was alive Wrangell was a very successful…

Published in 1926, this textbook of chemistry was intended to instill "the elementary foundation principles of chemistry which will be of service to the nurse in her work." The work contains chapters that discuss…

General view of Mrs. M.K. Murray demonstrating use of a nitrometer, an apparatus used to determine the amount of nitrogen or nitrogen compounds in a substance or mixture, at the U.S. Department of Agriculture's Fixed…

General view of male and female employees at work in an office space at the Dearborn Chemical Company 35th Street laboratory facilities located in Chicago, Illinois. While the majority of the employees are unidentified,…

General view of male and female employees at work at the Dearborn Chemical Company's 35th Street laboratory facility and manufacturing plant. Founded in 1887, the Dearborn Chemical Company was a corporate ancestor of…

General view of female employees at work at the Dearborn Chemical Company's 35th Street laboratory facility and manufacturing plant. Founded in 1887, the Dearborn Chemical Company was a corporate ancestor of…

General view of female employees at work at the Dearborn Chemical Company's 35th Street laboratory facility and manufacturing plant. Founded in 1887, the Dearborn Chemical Company was a corporate ancestor of…

General view of employee Genevieve Work in the Receiving Room at the Dearborn Chemical Company's 35th Street Laboratory facility and manufacturing plant. Per notations accompanying the photograph, the Receiving Room was…