The third edition of a sample book advertising woolen dye products from J. R. Geigy AG. Contains 289 dyed woolen samples. Information about each sample's light fastness, solubility, physical stability, and other properties is provided. The work begins with a description of the dyes used and the experiments conducted to evaluate the dye properties. According to a translation of the 2nd edition's forward, the work "contains a compilation of all of our wool dyes and provides information about their application and properties... intended to make it easier for customers to select dyes for their own testing."
Johann Rudolph Geigy (1733-1793) founded J.R. Geigy AG in 1758, selling wares such as dyestuffs, pharmaceutical supplies, spices, and coffee. The company found success in the dyestuffs industry, leading Johann Rudolf Geigy (1830-1917), great-grandson of the company's founder, to establish the company's dyeworks in 1857 for synthetic dye manufacture and research. By 1934, the company expanded to the US, and in 1971, it merged with Ciba AG to form Ciba-Geigy AG. The company exists today as Novartis Pharmaceuticals Company.
Die Wollfarbstoffe. Basel, Switzerland: J.R. Geigy A.G., 1928. https://digital.sciencehistory.org/works/asx7t5o.
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