"This treatise will be welcomed by those interested in this industry who have not secured the full advantage of a course of scientific training."--_Chemical Trade Journal._ "In concise and lucid terms almost every ingredient used in paint and colour manufacture is described, together with the methods of testing their intrinsic and chemical value."--_Pontefract Express._ "Such a book of reference for paint, colour and varnish manufacturers has long been needed, and in Mr. Hurst the publishers have secured a compiler who is not only a well-known authority and expert, but who has the gift of communicating his knowledge in a concise and lucid form."--_Manchester Courier._ * * * * * =PURE AIR, OZONE AND WATER.= A Practical Treatise of their Utilisation and Value in Oil, Grease, Soap, Paint, Glue and other Industries. By W. B. COWELL. Twelve Illustrations. 1900. Price 5s.; India and Colonies, 5s. 6d.: Other Countries, 6s.; strictly net. =Contents.= Chapters I., Atmospheric Air; Lifting of Liquids: Suction Process; Preparing Blown Oils; Preparing Siccative Drying Oils.--II., Compressed Air; Whitewash.--III., Liquid Air; Retrocession.--IV., Purification of Water; Water Hardness.--V., Fleshings and Bones.--VI., Ozonised Air in the Bleaching and Deodorising of Fats, Glues, etc.: Bleaching Textile Fibres.--Appendix: Air and Gases: Pressure of Air at Various Temperatures; Fuel; Table of Combustibles; Saving of Fuel by Heating Feed Water; Table of Solubilities of Scale Making Minerals: British Thermal Units Tables; Volume of the Flow of Steam into the Atmosphere; Temperature of Steam.--Index. =Press Opinions.= "This is a valuable work in little space.... In arrangement it is a commendable work, and its value is increased by the index which brings the little volume to a close."--_Newcastle Daily Journal._ "The book is written solely for manufacturers, who, without doubt, will find it exceedingly practical and useful. The volume contains an appendix wherein is given a great many tables, etc., which manufacturers in the trades referred to will find of inestimable value "_Blackburn Times._ =THE MANUFACTURE OF MINERAL AND LAKE PIGMENTS.= Containing Directions for the Manufacture of all Artificial, Artists and Painters' Colours, Enamel, Soot and Metallic Pigments. A Text-book for Manufacturers, Merchants, Artists and Painters. By Dr. JOSEF BERSCH. Translated from the Second Revised Edition by ARTHUR C. WRIGHT, M.A. (Oxon.), B.Sc. (Lond.), formerly Assistant Lecturer and Demonstrator in Chemistry at the Yorkshire College, Leeds. Forty-three Illustrations. 476 pp., demy 8vo. 1901. Price 12s. 6d.; India and Colonies. 13s. 6d.; Other Countries, 15s.; strictly net. =Contents.=