Henley’s Twentieth Century Book of Formulas, Processes and Trade Secrets

22cm x 15cm. [xxviii], 861, [24] pages. Red cloth, gilt lettering, blind rule, illustrated jacket.

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.

Soiling to fore-edge. Previous owner’s signature in ink. Jacket worn, clipped, misfolded, and lightly foxed. Good Condition.