William Henry Perkin depicted in his laboratory. Perkin, center, examines test dyeing of silk taffeta with mauve aniline dye. Left, his father, the backer of the plant, stands behind Perkin and admires the fabric. In…

Black and white photograph showing the interior of a dye laboratory of the General Dyestuff Corporation, likely in Providence, Rhode Island.

General view of a technician operating an electrostatic accelerator in the Dow Chemical Company's Spectroscopy Laboratory.

General view of technician Bill Beamer operating an unidentified machine in the Dow Chemical Company's Spectroscopy Laboratory.

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…

A publication showcasing the laboratories, apparatus, machinery, and personnel of the New Jersey Zinc Company. Intended to present the company's research facilities in Palmerton, Pennsylvania used for zinc pigment…

Black and white photograph of a dyestuff laboratory. Pictured equipment may be dyestuff dryers.