The Contemporary Science Series, 



Edited by Havelock Ellis. 



(i) 



THE EVOLUTION OF SEX. By Profs. PATRICK GEDDES 

 and J. A. THOMSON. With 92 Illustrations. Fourth and Revised 

 Edition, 6s. 



" The authors have brought to the task as indeed their names guarantee a wealth 

 of knowledge, a lucid and attractive method of treatment, and a rich vein of pictur- 

 esque language." Nature. 



(2) 

 ELECTRICITY IN MODERN LIFE. By G. W. DE 



TUNZELMANN. With over ioo Illustrations. 35. 6d. 



" A clearly-written and connected sketch of what is known about electricity and 

 magnetism, the more prominent modern applications, and the principles on which 

 they are based." Saturday Review. 



(3) 

 THE ORIGIN OF THE ARYANS. BY Dr. ISAAC TAYLOR. 



Illustrated. Second Edition. 35. 6d. 



"Canon Taylor is probably the most encyclopaedic all-round scholar. . . . 

 His volume on the Origin of the Aryans is a first-rate example of the excellent 

 account to which he can turn his exceptionally wide and varied information. . . . 

 Masterly and exhaustive." Pall Mall Gazette. 



(4) 



PHYSIOGNOMY AND EXPRESSION. By P. MANTE- 



GAZZA. Illustrated. Second Edition. 35. 6d. 



" Brings this highly interesting subject even with the latest researches. . . . 

 Professor Mantegazza is a writer full of life and spirit, and the natural attractiveness 

 of his subject is not destroyed by his scientific handling of it." Literary World (Boston). 



EVOLUTION AND DISEASE. By J. B. SUTTON, F.R.C.S. 



With 135 Illustrations. 35. 6d. 



" The book is as interesting as a novel, without sacrifice of accuracy or system, and 

 is calculated to give an appreciation of the fundamentals of pathology to the lay 

 reader, while forming a useful collection of illustrations of disease for medical 

 reference "Journal of Mental Science. 



