Henley's twentieth century book of formulas, processes and trade secrets a valuable reference book for the home factory, office laboratory and the workshop, containing ten thousand selected household, workshop and scientific formulas, trade secrets, chemical recipes, processes and money saving ideas for both the amateur and professional worker - Hiscox, Gardner Dexter 1822-1908; Sloane, Thomas O'Connor 1851-1940. (New York Books, 1965)
Keywords: Industrial arts; Receipts