_The Chemistry of the Coal Tar Dyes._ =Irving W. Fay, Ph.D.(Berlin).= Demy 8vo. 470 pages. 21/- net.
_The Chemistry of the Rubber Industry._ =Harold E. Potts, M.Sc.=, Member International Rubber Testing Committee. Demy 8vo. 7/6 net. 2nd Impression.
CONTENTS.—The Colloidal State. Raw Rubber. Gutta-Percha and Balata. Mixing. Vulcanisation, History. Vulcanised Rubber.
_The Chemistry of Cement, Concrete, and Bricks._ =A. B. Searle.= Demy 8vo. 10/6 net.
CONTENTS.—The Raw Materials for Cements. Methods of Cement Manufacture. The Chemical and Physical Changes in Cements. The Changes which occur in Setting and Hardening. Testing the Properties of Cements. The Components of Concrete and their Properties. The Preparation of Concrete. Reinforced Concrete. Special Properties of Concrete. Testing Concrete. The Raw Materials for Bricks. Methods of Brickmaking. The Chemical and other Changes in Drying and Burning Bricks. The Properties of Bricks. Siliceous Bricks. Basic and Neutral Bricks. Index.
_Liquid Air and the Liquefaction of Gases._ =T. O’Conor Sloane, M.A., M.E., Ph.D.= Demy 8vo. 2nd Edn. 21/- net.
_Detection of the Common Food Adulterants._ A handbook for health officers, food inspectors, chemistry teachers and students. =Prof. E. M. Bruce.= Crown 8vo. 2nd Edn. Revised. 10/6 net.
_The Chemistry of Dyeing and Bleaching of Vegetable Fibrous Materials._ =Julius Hübner, M.Sc.Tech., F.I.C.= Demy 8vo. 2nd Impression. Very fully Illustrated. 20/- net.
CONTENTS.—The Vegetable Fibres. Water. Chemicals and Mordants. Bleaching. Mercerising. Mineral Colours. The Natural Colouring Matters. Basic Cotton Dyestuffs. Substantive Cotton Dyestuffs. Sulphur Dyestuffs. Acid and Resorcine Dyestuffs. Insoluble Azo-Colours, produced on the fibre. The Vat Dyestuffs. Mordant Dyestuffs. Colours produced on the fibre by Oxidation. Dyeing Machinery. Estimation of the Value of Dyestuffs. Appendix. Index.
_The Colloidal and Crystalloidal State of Matter._ =H. E. Potts, M.Sc.=, and =W. J. Breitland=. Translated from the German of Professor =P. Rohland=. Crown 8vo. 4/6 net.
_Colloids in Biology and Medicine._ =Prof. H. Beechold.= Translated from 2nd German Edition by =J. M. Bullaya, A.B., M.D.= Illustrated. 31/6 net.