(20) 



PUBLIC HEALTH. By Dr. J. F. J. SYKES. With numerous 



Illustrations. 33. 6d. 



" Not by any means a mere compilation or a dry record of details and statistics, 

 but it takes up essential points in evolution, environment, prophylaxis, and sanitation 

 bearing upon the preservation of public health." Lancet. 



(21) 



MODERN METEOROLOGY. AN ACCOUNT OF THE 

 GROWTH AND PRESENT CONDITION OF SOME BRANCHES OF 

 METEOROLOGICAL SCIENCE. By FRANK WALDO, PH.D., Member 

 of the German and Austrian Meteorological Societies, etc. ; late 

 Junior Professor, Signal Service, U.S.A. With 112 Illustrations. 

 35. 6d. 



" The present volume is the best on the subject for general use that we have seen." 

 Daily Telegraph (London). 



(22) 



THE GERM-PLASM : A THEORY OF HEREDITY. By 



AUGUST WEISMANN, Professor in the University of Freiburg-in- 

 Breisgau. With 24 Illustrations. 6s. 



" There has been no work published since Darwin's own books which has so 

 thoroughly handled the matter treated by him, or has done so much to place i order 

 and clearness the immense complexity of the factors of heredity, or, lastly, has 

 brought to light so many new facts and considerations bearing on the subject." 

 British Medical Journal. 



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INDUSTRIES OF ANIMALS. By F. HOUSSAY. With 

 numerous Illustrations 35. 6d. 



" His accuracy is undoubted, yet his facts out-marvel all romance. These facts are 

 here made use of as materials wherewith to form the mighty fabric of evolution." 

 Manchester Guardian. 



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MAN AND WOMAN. By HAVELOCK ELLIS. Illustrated. 

 Fourth Edition, Revised and Enlarged, 6s. 



" Air. Havelock Ellis belongs, in some^measure, to the continental school of anthro- 

 pologists ; but while equally methodical in the collection of facts, he is far more 

 cautious in the invention of theories, and he has the further distinction of being not 

 only able to think, but able to write. His book is a sane and impartial considera- 

 tion, from a psychological and anthropological point of view, of a subject which is 

 certainly of primary interest." Athenceum, 



