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Manual of toilet soapmaking : including medicated soaps, stain-removing soaps, metal polishing soaps, soap powders and detergents. With a treatise on perfumes for scented soaps, and their production and tests for purity and strength / edited by Dr. C. Deite, from the text of numerous experts. Tr. from the original by S.I. King. Public Domain Mark. Source: Wellcome Collection.