The Soap Maker's Handbook Book: Of Materials, Processes and Receipts for Every Description of Soap; Including Fats, Fat Oils, and Fatty Acids; Examination of Fats and Oils; Alkalies; Testing Soda and Potash; Machines and Utensils; Hard Soaps; Soft Soaps;
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The Soap Maker's Handbook Book: Of Materials, Processes and Receipts for Every Description of Soap; Including Fats, Fat Oils, and Fatty Acids; Examination of Fats and Oils; Alkalies; Testing Soda and Potash; Machines and Utensils; Hard Soaps; Soft Soaps;
