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By 1917, they sold chemistry sets, which they produced through World War II, in spite of restrictions on materials. Robert Treat Johnson, noting the number of chemistry students at Yale whose interest in the science began with a chemistry set, argued the production of chemistry sets was a "patriotic duty." [5]
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Porter Chemical Company was an American toy manufacturer that developed and produced chemistry sets aimed as educational toys for aspiring junior scientists. The company's Chemcraft kits were first sold at major retail by Woodward & Lothrop, and appeared soon after at other retailers in the country.
Download QR code; Print/export Download as PDF; Printable version; In other projects Wikidata item; Appearance. move to sidebar hide ... CAS Common Chemistry; ChemSpider;
Download QR code; Print/export Download as PDF; Printable version; In other projects ... {Chemistry index}} will add this template to the article.
Bahasa Indonesia; Interlingua; ... Download as PDF; Printable version; ... Set index articles on chemistry (2 C, 791 P) + Works about chemistry (4 C)
Set index articles on molecular formulas (2,418 P) Pages in category "Set index articles on chemistry" The following 200 pages are in this category, out of approximately 791 total.
Bahasa Indonesia; Македонски ... Download QR code; Print/export Download as PDF; Printable version; ... A set of chemical elements, can be based on any ...