Recent Publications 



OF 



The University of Chicago Press 



Artificial Parthenogenesis and Fertilization. By Jacques Loeb, 



Member of the Rockefeller Institute for Medical Research. 



x + 312 pages, i2mo, cloth; $2.50, postage extra (weight 2 lbs. 4 oz.) 



This new work presents the first complete treatment of the 

 subject of artificial parthenogenesis in English. Professor Loeb 

 published four years ago a book in German under the title Die 

 chemische Entwicklungserregung des tierischen Eies. Mr. W. O. 

 R. King, of the University of Leeds, England, translated the 

 book into English, and the translation has been revised, en- 

 larged, and brought up to date by Professor Loeb. It gives, as 

 the author says in the preface, an account of the various methods 

 by which unfertilized eggs can be caused to develop by physico- 

 chemical means, and the conclusions which can be drawn from 

 them concerning the mechanism by which the spermatozoon 

 induces development. Since the problem of fertilization is in- 

 timately connected with so many different problems of physi- 

 ology and pathology, the bearing of the facts recorded and 

 discussed in the book goes beyond the special problem indicated 

 by the title. 



British Medical Journal. The author has gained a world-wide reputation 



for his achievements in artificial fertilization, and this work shows how, 



observations 



ipermato 



zoon. 



Animal Communities in Temperate America. A Study in Animal 



Ecology. (Bulletins of the Geographic Society of Chicago.) 

 By Victor Ernest Shelford, Assistant Professor of Zoology 

 in the University of Illinois. 



00 



This volume by Dr. Shelford presents the principles of 

 field ecology, illustrated by the more widely distributed animal 

 habitats of the eastern half of temperate North America, and 



