342 SCIENCE PROGRESS 



A. Manual of the Timbers of the World ; Their Characteristics and Uses. 

 By Alexander L. Howard, to which is appended an account, by S. Fitz- 

 gerald, of the Artificial Seasoning of Timber. London: Macmillan & 

 Co., St. Martin's Street, 1920. (Pp. xvi + 446, with 109 illustrations.) 

 Price 30S. net. 



General Botany for Universities and Colleges. By Hiram D. Densmore, 

 M.A., Professor of Botany at Beloit College, Beloit, Wise,, with 

 original illustrations by the author and by M. Louise Sawyer, M.S., 

 formerly Instructor in Botany at Beloit College. New York and Lon- 

 don : Ginn & Company. (Pp. xii + 459, with 289 figures.) Price 

 I2S. 6d. net. 



An Introduction to Entomology. By John Henry Comstock, Professor of 

 Entomology and General Invertebrate Zoology, Emeritus, in Cornell 

 University. Second Edition, entirely rewritten. Ithaca, New York : 

 The Comstock Publishing Co., 1920. (Pp. xviii + 220.) Price $2.50. 



The Seashore. By W. P. Pycraft, Zoological Department, British Museum 

 (Natural History), Member of the Royal Anthropological Institute, etc. 

 London : Society for Promoting Christian Knowledge ; New York : The 

 Macmillan Company, 1920. (Pp. vi + 156, with 11 plates, 12 figures, 

 and 2 maps.) Price 45. (>d. net. 



Vertebrate Zoology. By Horatio Hackett Newman, Ph.D., Professor of 

 Zoology and Embryology in the University of Chicago. New York : 

 The Macmillan Company, 1920. (Pp. xiii -f- 432, with 217 figures in 

 the text.) 



Principles of Animal Biology. By A. Franklin ShuU, Associate Professor 

 of Zoology in the University of Michigan, with the collaboration of 

 George R. Larne and Alexander G. Ruthven. New York : McGraw- 

 hill Book Company, Inc., 239 West 39th Street; and London: 6 and 8 

 Bouverie Street, E.C.4., 1920. (Pp. xv -f 441, with 244 figures in the 

 text.) Price 21s. net. 



Symbiosis: A Socio-Physiological Study of Evolution. By H. Reinheimer. 

 London : Headley Bros., 18 Devonshire Street, E.C.2., 1920. (Pp. xii 



+ 295-) 



A Manual of Practical Anatomy. A Guide to the Dissection of the Human 

 Body. By Thomas Walmsley, with a Preface by Thomas B. Bryce, 

 M.D. In Three Parts : Part I, The LTpper and Lower Limbs. London: 

 Longmans, Green & Co., 1920. (Pp. viii + 176.) Price 9s. net. 



The drawings are very simple, but at the same time very effective, 

 and, above all, do not attempt to crowd too much information into a 

 small space. They are not coloured. The letterpress is of two sizes 

 of type, with very convenient black-lettering. A convenient book for 

 the dissector. 



Extra Pharmacopoeia. Revised by W. Harrison Martindale, Ph.D., Ph.Ch., 

 F.C.S., and W. Wynn Wescott M.B., D.P.H. In Two Volumes. Seven- 

 teenth Edition. Vol. I. London : H. K. Lewis, 1920. (Pp. xxxix + 

 1 1 15.) Price 27s. net. 



The successive editions of this book, so useful to medical men, 

 seem to be endless, and every edition contains some changes owing to 

 the rapid development of medical science. The last edition was issued 

 in January 1915, and much water has run under the bridge since then. 



