Series of photographs showing unidentified employees exiting the Rohm and Haas Company home office building located at West Washington Square in Philadelphia. These photographs were likely taken around the time the…

Kathryn C. Hach-Darrow begins the interview with anecdotes of Clifford C. Hach as a young, inquisitive child growing up on a farm and the effects of the Great Depression on the Hach family. Despite financial…

Color plate illustrates an early method of bleaching cotton and linen goods on lawns. Two women stand amongst a vast landscape holding watering cans over strips of white cloth. Decorative frame is bordered by foliage…

Group portrait with Dr. Michael Somogyi (1883-1971) and Dr. Irene E. Karl (1915-2006) at the Jewish Hospital of St. Louis. Dr. Karl, wearing a lab coat and striped blouse, stands next to Dr. Somogyi on his left-hand…

Frontismatter and plates have been digitized from this volume on poisonous substances. Chromolithographed frontispiece plate illustrates blood spectra. Digitized plates depict various poisonous substances under…

Mexican postage stamp issued to commemorate the 25th anniversary of the founding of the Instituto Politécnico Nacional de México (the National Polytechnic Institute of Mexico) on January 1, 1936. Established during the…

Frontispiece illustration depicts a woman holding passion flowers with the caption "The passion flower belongs to the class monadelphia and order pentandria. See page 165." The flower she holds is painted yellow…

Image caption reads "girls sorting out imperfect grains of smokeless powder." Inset photograph caption states "smokeless powder manufacture under difficulties—during the severe winter of 1917-18; great banks of snow are…

General view of several Beckman Instruments employees wiring a timing generator purchased by Convair Astronautics. The employees visible in the photograph are identified as follows (left to right): Pete Kappauf; Homer…

General view of several female Beckman Instruments employees wiring and connecting a cabinet purchased by Autonetics, a division of North American Aviation. The employees visible in the photograph are identified as…

General view of several female employees assembling a stepper harness for use with a NASA system. The employees visible in the photograph are identified as follows (left to right): Evelyn Gulick; Agnes Ross; and Edith…

Entitled "One Stage in the Manufacture of an Explosive," photographic reproduction depicts women in a factory picking cotton waste. The cotton waste will be converted into guncotton, or nitrocellulose, which is used in…

Portrait of agricultural economist Gae Adamson Bennett (b. 1917). While working for the United States Department of Agriculture Economic Research Service, Bennett co-authored numerous volumes on agricultural production…

Group photograph of unidentified female personnel at an unidentified United States Department of Agriculture facility. A large board bearing a sheaf of wheat is visible in front of the group.

Claire K. Schultz begins the interview by discussing her childhood in south central Pennsylvania. Raised primarily by her father and grandmother, Schultz dreamed of becoming a doctor from a young age. Inspired by her…

Philatelic First Day Cover honoring American social worker and activist Emily Bissell (1861-1948), best known for her work to combat tuberculosis and for introducing Christmas Seals to the United States. The cover bears…

United States postage stamp honoring Dr. Virginia Apgar (1909-1974), an American obstetrical anesthesiologist best known as the inventor of the Apgar Score used to quickly assess the health of a newborn child…

Philatelic First Day Cover commemorating American marine biologist, author, and conservationist Rachel Carson (1907-1964). Part of the "Great Americans Series," the envelope bears the postmark of Springdale,…

Isabella and Jerome Karle met while both were pursuing doctorates in physical chemistry under Professor Lawrence Brockway at the University of Michigan. After earning their degrees (and marrying), they worked on the…

General view of an unidentified employee inspecting a piece of Styrofoam insulation at a Dow Chemical Company facility. Invented in 1941 by researchers in Dow's Chemical Physics Lab, "Styrofoam" properly refers to the…

SILASTIC demonstration mammary breast implant/sizer/prosthesis in original packaging and box with accompanying paperwork.

A: White cardboard box with blue product label adhered to top of box. Box opens to reveal…

Madeline Henderson begins this interview with a description of her family and early years in Quincy, Massachusetts. Henderson attended Emmanuel College, receiving an A.B. in chemistry in 1944. After college, she worked…

This work by Antoine Laurent Lavoisier is widely considered the first of its kind in modern chemical literature. Select digitized content includes front cover, frontismatter, woodcut vignettes, as well as thirteen…

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 key punch operators (front to back) Ilene Allen, Janet Dyer, Jesse Haven, Marion McFadden, and Margaret Preznowiak transcribing written data into tabulating cards in the Tabulating Department at the Dow…