686 SCIENCE PROGRESS 



Organic Chemistry and Director of the Chemical Laboratories in University 

 College, London. Third Edition. London : Longmans, Green & Co., 39, 

 Paternoster Row, and New York, Bombay, Calcutta, and Madras, 1918. 

 (Pp. xix -f 350.) Price 17.?. net. 



Recent Advances in Physical and Inorganic Chemistry. By Alfred W. Stewart, 

 B.Sc, Lecturer on Physical Chemistry and Radioactivity in the University of 

 Glasgow. With an Introduction by Sir William Ramsay, K.C.B., F.R.S. 

 Third Edition. London : Longmans, Green & Co., 39, Paternoster Row, and 

 New York, Bombay, Calcutta, and Madras, 1919. (Pp. xv + 284, with 23 

 illustrations.) Price 12s. bd. net. 



The Natural Organic Colouring Matters. By Arthur George Perkin, F.R.S. , 

 F.R.S.E., F.I.C., Professor of Colour Chemistry and Dyeing in the University 

 of Leeds, and Arthur Ernest Everest, D.Sc, Ph.D., F.I.C., of the Wilton 

 Research Laboratories, late Head of the Department of Coal-Tar Colour 

 Chemistry, Technical College, Huddersfield. London : Longmans, Green & 

 Co., 39, Paternoster Row, and New York, Bombay, Calcutta, and Madras, 

 1918. (Pp. xxii + 655.) Price 28.r. net. 



Surface Tension and Surface Energy and their Influence on Chemical Phenomena. 

 By R. S. Willows, M.A., D.Sc, and E. Hatschek. Second Edition. London: 

 J. & A. Churchill, 7, Great Marlborough Street, 1919. (Pp. viii -f- 115, with 

 21 illustrations.) Price 45-. 6d. net. 



A System of Physical Chemistry. By William C. McC. Lewis, M.A., D.Sc, 

 Professor of Physical Chemistry in the University of Liverpool. Second 

 Edition. London : Longmans, Green & Co., 39, Paternoster Row, and New 

 York, Bombay, Calcutta, and Madras, 1916. (Pp. Vol. I. xi + 523, Vol. II. 

 vii -f 552.) Price gs. net each volume. 



Catalysis in Industrial Chemistry. By G. G. Henderson, M.A., D.Sc, LL.D., 

 F.R.S., "Freeland" Professor of Chemistry, The Royal Technical College, 

 Glasgow. London : Longmans, Green & Co., 39, Paternoster Row, and New 

 York, Bombay, Calcutta, and Madras, 1919. (Pp- ix + 202.) Price gs. net. 



Catalytic Hydrogenation and Reduction. By Edward B. Maxted, Ph.D., B.Sc, 

 F.C.S. London : J. & A. Churchill, 7, Great Marlborough Street, 1919. 

 (Pp. viii + 104, with 12 illustrations.) Price 4s. 6d. net. 



Tables of Refractive Indices. Vol. I. Essential Oils. Compiled by R. Kanthack, 

 edited by J. N. Goldsmith, Ph.D., M.Sc, F.I.C. London: Adam Hilger, 

 75A, Camden Road, N.W.i, 1918. (Pp. vi + 148.) 



A Manual of Geometrical Crystallography : Treating Solely of those Portions of 

 the Subject useful in the Identification of Minerals. By G. Montague Butler, 

 E.M. Professor of Mineralogy and Petrology, Dean, College of Mines and 

 Engineering, University of Arizona, Tucson, Arizona. New York : John 

 Wiley & Son; London: Chapman & Hall, 1918. (Pp. viii -f- 155.) Price 

 7 j. net. 



Genetics Laboratory Manual. By E. B. Babcock, Professor of Genetics, Univer- 

 sity of California, and J. L. Collins, Instructor of Genetics, University of 

 California. Agricultural Publications: Charles V. Piper, Consulting Editor. 

 New York : McGraw-Hill Book Co. ; London : Hill Publishing Co., 1918.. 

 (Pp. xi + 56.) 



