=ANIMAL FATS AND OILS=: Their Practical Production, Purification and Uses for a great Variety of Purposes. Their Properties, Falsification and Examination. Translated from the German of LOUIS EDGAR ANDÉS. Sixty-two Illustrations. 240 pp. 1898. Demy 8vo. Price 10s. 6d.; India and Colonies, 11s.; Other Countries, 12s.; strictly net. Contents. Introduction--Occurrence, Origin, Properties and Chemical Constitution of Animal Fats--Preparation of Animal Fats and Oils--Machinery-- Tallow-melting Plant--Extraction Plant--Presses--Filtering Apparatus --Butter: Raw Material and Preparation, Properties, Adulterations, Beef Lard or Remelted Butter, Testing--Candle-fish Oil--Mutton-Tallow--Hare Fat--Goose Fat--Neatsfoot Oil--Bone Fat: Bone Boiling, Steaming Bones, Extraction, Refining--Bone Oil--Artificial Butter: Oleomargarine, Margarine Manufacture in France, Grasso's Process, "Kaiser's Butter," Jahr & Münzberg's Method, Filbert's Process, Winter's Method--Human Fat--Horse Fat--Beef Marrow--Turtle Oil--Hog's Lard: Raw Material-- Preparation, Properties, Adulterations, Examination--Lard Oil--Fish Oils--Liver Oils--Artificial Train Oil--Wool Fat: Properties, Purified Wool Fat--Spermaceti: Examination of Fats and Oils in General. =VEGETABLE FATS AND OILS=: Their Practical Preparation, Purification and Employment for Various Purposes, their Properties, Adulteration and Examination. Translated from the German of LOUIS EDGAR ANDÉS. Ninety-four Illustrations. 340 pp. Second Edition. 1902. Demy 8vo. Price 10s. 6d.; India and Colonies, 11s.; Other Countries, 12s.; strictly net. Contents. =General Properties=--=Estimation of the Amount of Oil in Seeds=--=The Preparation of Vegetable Fats and Oils=--Apparatus for Grinding Oil Seeds and Fruits--=Installation of Oil and Fat Works=--Extraction Method of Obtaining Oils and Fats--Oil Extraction Installations--Press Moulds--=Non-drying Vegetable Oils=--=Vegetable drying Oils=--=Solid Vegetable Fats=--Fruits Yielding Oils and Fats--Wool-softening Oils--Soluble Oils--Treatment of the Oil after Leaving the Press-- Improved Methods of Refining--=Bleaching Fats and Oils=--Practical Experiments on the Treatment of Oils with regard to Refining and Bleaching--Testing Oils and Fats. =SOAPS.= A Practical Manual of the Manufacture of Domestic, Toilet and other Soaps. By GEORGE H. HURST, F.C.S. 390 pp. 66 Illustrations. 1898. Price 12s. 6d.; India and Colonies, 13s. 6d.; Other Countries, 15s.; strictly net. Contents. =Introductory=--=Soap-maker's Alkalies=--=Soap Fats and Oils=-- =Perfumes=--=Water as a Soap Material=--=Soap Machinery=-- =Technology of Soap-making=--=Glycerine in Soap Lyes=--=Laying out a Soap Factory=--=Soap Analysis=--=Appendices.=