Bulletin of the American Geographical Society. This book is unique in that 



it is a pioneer of its sort and the first serious attempt to treat of the 

 physiology of organisms and of animal communities in such shape as 

 to serve as an adequate text and reference work for students. 



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 Entwicklungserr egung 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, 

 according to his observations, the action of well-known chemical and 

 physical agencies may be substituted for that of the living spermato- 

 zoon. 



PUBLICATIONS OF THE CHICAGO 



HISTORICAL SOCIETY 



The University of Chicago Press has become the publishing 

 and distributing agent for the following books and pamphlets 

 of the Chicago Historical Society:- 



Masters of the Wilderness. By Charles B. Reed. ("Fort Dearborn 

 Series. ,y ) 154 pages, i6mo, cloth; $1.00, postage extra (weight 12 oz.). 



COLLECTIONS 



Vol. I. History of the English Settlement in Edwards County, Illinois. 



By George Flower. Out of print. 



'5 



