Facing a glowing furnace at left, a bearded alchemist in green with a red cap looks at a flask of green liquid. A young assistant in a red singlet stands to his right. Laboratory apparatus is seen in foreground and…

A bearded man reading a book is standing in a great vaulted interior. A large window illuminates the room with warm daylight, reflecting against the glassware sparsely placed on upper shelves. At right, a long-necked…

This scene depicts tools and materials used both in alchemy and in art—most notably the large écorché figure placed on the alchemist's table, which was used by artists and students of human anatomy. A human skull,…

This depiction of 8th-century Arabic polymath Abu Mūsā Jābir ibn Hayyān, westernized by Europeans as "Geber," comes from chapter 33 of the publication Les vrais pourtraits et vies des hommes illustres grecz, latins et…

Black metal (iron) U-shaped base with cylindrical brass (plated) parts; two metal slide clips mounted to slide plate; rotatable eye piece lowered or raised by the adjustment of top right knob; circular mirror underneath…

The alchemist sits in a small side chamber, absorbed by his readings, as his family works to prepare a meal in the open kitchen. Household and alchemical materials merge: a distillation apparatus sits on the hearth at…

General view of technician James Geary using a Klett-Summerson Photoelectric Colorimeter to obtain a determination of iodine at a Dow Chemical Company laboratory. Designed in the 1930's by two Cornell University Medical…

Beckman Instruments began producing centrifuges after their January 1, 1955 acquisition of industry leader, Specialized Instruments Corporation, or Spinco. With Spinco came the famous Model E Ultracentrifuge, which was…

Electrophoresis uses an electric field to separate particles in a medium (like a gel) based on their size, charge, or a binding affinity.

The image of all 3 components was photographed by Russell Illig per a…

First published in 1617, Michael Maier's alchemical emblem book contains a preface on ancient music and the Greek myth of Atalanta and Hippomenes and consists of 50 engraved emblems, each accompanied by a discourse and…

General view of an unidentified employee holding a mouse while standing in front of several rows of cages used to house mice at the Dow Chemical Company's Biological Chemical Laboratory. The laboratory commonly…

General view of an unidentified employee weighing a rabbit in the Dow Chemical Company's Biological Chemical Laboratory. Several rows of pens containing other rabbits are visible in the background. The laboratory…

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…

Arnold Beckman invented his first pH meter in 1934 at the request of a chemist from the California citrus industry, who needed an accurate way to measure the acidity of his product. The resulting instrument kicked off…

Translucent green, glass round-bottomed vase with heavy rainbow luster throughout. Base of the vase is round and then attaches to a vertical tube in the center, top of the tube has an ornamental curved design that…

Small plastic cylindrical medicine bottle. Safety cap is missing. Medicine bottle is empty.

Square plastic pill bottle with safety cap. Medicine bottle is empty.

Small cylindrical plastic white bottle with safety cap used for holding pills. Medicine bottle is empty.

Sample book for sulfur dyes on cotton yarn. Contains dyeing instructions and mounted thread samples on folded cards.

This photograph is part of a series of marketing images used to demonstrate the small size of Helipot products, in this case a microcircuit.

Color print magazine advertisement for Community silverware. This ad appeared in the Ladies' Home Journal, November 1947.

Color print magazine advertisement for Pennsalt DDT products. This ad appeared in Time Magazine, June 30, 1947.

Color print cardboard poster for L'Insectoline DDT. A boy is using the product to kill a variety of insects.

General view of technicians inspecting the creel (a rack holding bobbins or spools for spinning) on a staple drawing machine used during the early stages of synthetic fiber production and research at DuPont. During the…

Three views of a nylon drawing machine and creel (a rack holding bobbins or spools for spinning) used at the DuPont plant in Seaford, Delaware during the early stages of nylon production and research.