Trade Terms and Customs—Tables to Ascertain Value of Oil sold per cwt. or ton—Specific Gravity Tables—Percentage Tare Tables—Petroleum Tables—Paraffine and Benzoline Calculations—Customary Drafts—Tables for Calculating Allowance for Dirt, Water, etc.—Capacity of Circular Tanks Tables, etc., etc.

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 PropertiesEstimation of the Amount of Oil in SeedsThe 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 OilsVegetable drying OilsSolid 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.

THE CHEMISTRY OF ESSENTIAL OILS AND ARTIFICIAL PERFUMES. By Ernest J. Parry, B.Sc. (Lond.), F.I.C., F.C.S. 411 pp. 20 Illustrations. 1899. Demy 8vo. Price 12s. 6d.; India and Colonies, 13s. 6d.; Other Countries, 15s.; strictly net.

Contents.

The General Properties of Essential OilsCompounds occurring in Essential OilsThe Preparation of Essential OilsThe Analysis of Essential OilsSystematic Study of the Essential OilsTerpeneless OilsThe Chemistry of Artificial PerfumesAppendix: Table of Constants—Index.

(For "Textile Soaps" see p. 32.)