"We can with confidence recommend the perusal of the book to all persons interested in the manufacture of artificial manures, and also to the large number of farmers and others who are desirous of working their holdings on the most up-to-date methods, and obtaining the best possible results, which scientific research has placed within their reach."--_Wigan Observer._ * * * * * =ANALYSIS OF RESINS AND BALSAMS.= Demy 8vo. 340 pp. 1901. Price 7s. 6d.; India and Colonies, 8s.; Other Countries, 8s. 6d.; strictly net. =Contents.= Part I., Definition of Resins in General--Definition of Balsams, and especially the Gum Resins--External and Superficial Characteristics of Resinous Bodies--Distinction between Resinous Bodies and Fats and Oils--Origin, Occurrence and Collection of Resinous Substances--Classification--Chemical Constituents of Resinous Substances--Resinols--Resinot Annols--Behaviour of Resin Constituents towards the Cholesterine Reactions--Uses and Identification of Resins--Melting-point--Solvents--Acid Value--Saponification Value--Resin Value--Ester and Ether Values--Acetyl and Corbonyl Value--Methyl Value--Resin Acid--Systematic Resume of the Performance of the Acid and Saponification Value Tests. Part II., Balsams--Introduction--Definitions--Canada Balsam--Copaiba Balsam--Angostura Copaiba Balsam--Bahia Copaiba Balsam--Carthagena Copaiba Balsam--Maracaibo Copaiba Balsam--Maturin Copaiba Balsam--Gurjum Copaiba Balsam--Para Copaiba Balsam--Surinam Copaiba Balsam--West African Copaiba Balsam--Mecca Balsam--Peruvian Balsam--Tolu Balsam--Acaroid Resin--Amine--Amber--African and West Indian Kino--Bengal Kino--Labdanum--Mastic--Pine Resin--Sandarach--Scammonium--Shellac--Storax--Adulteration of Styrax Liquidus Crudus--Purified Storax--Styrax Crudus Colatus--Tacamahac--Thapsia Resin--Turpentine--Chios Turpentine--Strassburg Turpentine--Turpeth Turpentine. =Gum Resins=--Ammoniacum--Bdellium--Euphorbium--Galbanum--Gamboge--Lactucarium-- Myrrh--Opopanax--Sagapenum--Olibanum or Incense--Acaroid Resin--Amber-- Thapsia Resin.--Index. * * * * * =MANUFACTURE OF PAINT.= A Practical Handbook for Paint Manufacturers, Merchants and Painters. By J. CRUICKSHANK SMITH, B.Sc. Demy 8vo. 1901. 200 pp. 60 Illustrations and 1 Large Diagram. Price 7s. 6d.; India and Colonies, 8s.; Other Countries, 8s. 6d.; strictly net. =Contents.= Part I., Chapters I., Preparation of Raw Material.--II., Storing of Raw Material.--III., Testing and Valuation of Raw Material--Paint Plant and Machinery.