2 STAND ARD WORKS ON SCIENCE 



ANIMAL LIFE 



By F. W. GAMBLE, D.Sc, F.R.S., University of Birming- 

 ham. With many Illustrations. 6s. net. 



This work is written in the first instance for those who 

 wish to learn or teach such a survey of the animal pageant as 

 can ally itself with observation and experiment ; and in the 

 second place for those who wish to organise their knowledge 

 of animal life. 



VARIATION, HEREDITY & EVOLUTION 



Recent Progress in the Study of 



By R. H. LOCK, M.A., Sc.D., sometime Fellow of Gonville 

 and Caius College, Cambridge. With a Biographical Note 

 by BELLA SIDNEY WOOLF. (Mrs. R. H. LOCK). 4th 

 Edition. Revised by LEONARD DONCAS.TER, Sc.D., 

 F.R.S. With portraits and diagrams. 10s. 6d. net. 



The object of this book is to describe the connection 

 between the new science of Genetics and those ideas which 

 have long been summed up under the expression Darwinism, 

 as well as to point out the practical importance and theoretical 

 interest of these subjects. " It is an admirable summary of 

 the subject, well and lucidly written." British Medical Journal. 



MECHANISM, LIFE AND PERSONALITY 



An Examination of the Mechanistic Theory of Life and 

 Mind. By J. S. HALDANE, M.D., LL.D., F.R.S., Fellow 

 of New College and Reader in Physiology, University of 

 Oxford. 3s. 6d. net. 



" Dr. Haldane has succeeded in packing an immense 

 amount of knowledge and thought into the compass of a small 

 volume. The complexity of his themes has never for a 

 moment betrayed him into ambiguity either of thought or 

 expression." Sunday Times. 



THE TIDES 



and kindred phenomena in the Solar System 

 By Sir GEORGE HOWARD DARWIN, K.C.B., Plumian 

 Professor in the University of Cambridge. With many 

 Illustrations. Third Edition. as. net. 



