WIGNER, J.H. - Soap Manufacture. The Chemical Processes.

London: E & F.N. Spon, Ltd, 1940. 1st edition. A Handbook for Students and Those Engaged in the Manufacture of Hard Soap. Pp.viii/162, 8 cards showing measurements for ingredients in pocket to inside rear board, toned area to front free endpaper, minor spotting to closed page edges (not affecting internal margins). Black cloth, dustwrapper has tears and losses. G+/Poor.

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