BOOKS RECEIVED 513 



Biological Chemistry. By H. E. Roaf, M.D., D.Sc, M.R.C.S., L.R.C.R, 

 Professor of Physiology at London Hospital Medical College, University 

 of London. London : Methuen & Co., 36 Essex Street, W.C. (Pp. xvi 

 + 216, with 47 figures.) Price los. 6d. net. 



A Text-book of Qualitative Analysis of Inorganic Substances. By Sydney 

 Alexander Kay, D.Sc, Lecturer in Chemistry, University of Edinburgh. 

 London : Burney & Jackson ; Edinburgh : Oliver & Boyd, Tweeddale 

 Court, 1921. (Pp. vii + 80.) Price 7s. Gd. net. 



The Riddle of the Rhine. Chemical Strategy in Peace and War. By Victor 

 Lefebure, Officer of the Order of the British Empire, with an Introduction 

 by Field-Marshal Sir Henry Wilson, Bart., Chief of the Imperial Staff. 

 London : W. Collins, Sons & Co., 48 Pall Mall. (Pp. 277.) Price los. 6d. 

 net. 



The Chemistry of Colloids and some Technical Applications. By W. W. 

 Taylor, M.A., D.Sc, Lecturer in Chemical Physiology at the University 

 of Edinburgh. London: Edward Arnold & Co., 192 1. (Pp. viii + 332, 

 Price los. 6d. net. 



The Hot Springs of New Zealand. By Arthur Stanley Herbert, O.B.E., M.D., 

 B.S., Consulting Balneologist to and late Government Balneologist to the 

 Dominion of New Zealand. London : H. K. Lewis & Co., 1921. (Pp. 

 xiv + 284, with 3 maps and 87 illustrations.) Price 155. net. Also in 

 Paper Covers, 14s. net. 



Map Projections. By Arthur R. Kinks, C.B.E., M.A., F.R.S., Secretary of 

 the Royal Geographical Society. Second Edition. Revised and 

 enlarged. Cambridge : at the University Press, 192 1. (Pp. xii + 158.) 

 Price I2S. 6d. net. 



Petroleum. Monographs of the Imperial Institute on Mineral Resources with 

 special reference to the British Empire. Prepared jointly with H.M. 

 Petroleum Department with the Co-operation of H. B. Cronshaw, B.A., 

 Ph.D., A.R.S.M. London: John Murray, Albemarle Street, W., 1921. 

 (Pp. X + no.) Price 55. net. 



Silver Ores. Monographs of the Imperial Institute on Mineral Resources 

 with Special Reference to the British Empire. Prepared under the 

 Direction of the Mineral Resources Committee of the Imperial Institute 

 with the Assistance of the Scientific and Technical Staff. By H. B. 

 Cronshaw, B.A., Ph.D., A.R.S.M. London : John Murray, Albemarle 

 Street, W., 1921. (Pp. vii + 152, with 2 diagrams and a map.) Price 

 6s. net. 



La Constitution des Plantes Vasculaires Revelee par leur Ontogenie. Gustave 

 Chauveaud, Directeur de Laboratoire a I'licole des Hautes-fitudes. 

 Paris : Payot et Cie., 106 Boulevard Saint-Germain, 1921. (Pp. xiii + 

 155, with 54 figures.) Price 10 frs. 



Breeding Crop Plants. By Herbert Kendall Hayes, Professor of Plant 

 Breeding, College of Agriculture, University ,of Minnesota, and Ralph 

 John Garber, Associate Professor and Head of the Department of 

 Agronomy, University of West Virginia. New York : McGraw-Hill 

 Book Company, 370 Seventh Avenue ; London : 6 and 8 Bouverie 

 Street, E.C.4, 1921. (Pp. xvii + 328, with 66 figures.) Price 21s. net. 



Strasburger's Text-book: ;of Botany. Rewritten by Dr. Hans Fitting, Dr. 

 Ludwig Jost, Dr. Heinrich Schenck, and Dr. George Karsten. Fifth 



