Columbia University Biological Series. 



EDITED BY 



HENRY FAIRFIELD OSBORN, 



Da Costa ProfesHor of Zoology in Columbia Unitersity, 



AND 



EDMUND B. WILSON, 



Prof emor of Zoology in Columbia University. 



This series is founded upon a course of popular University 

 lectures given during the winter of 189-2-0, in connection with 

 the opening of the new department of Biology in Columbia 

 Colleo'e. The lectures are in a measure consecutive in charac- 

 ter, illustrating phases in the discovery and application of the 

 theory of Evolution. Thus the first course outlined the de- 

 velopment of the Descent theory; the second, the application 

 of this theory to the problem of the ancestry of the Vertebrates, 

 largely based upon embryological data; the third, the applica- 

 tion of the Descent theory to the interpretation of the structure 

 and phylogeny of the Fishes or lowest Vertebrates, chiefly based 

 upon comparative anatomy ; the fourth, upon the problems of 

 individual development and Inheritance, chiefly based upon the 

 structure and functions of the cell. 



Since their original delivery the lectures have been carefully 

 rewritten and illustrated so as to adapt them to the use of Col- 

 lege and University students and of general readers.* The vol- 

 umes as at present arranged for include: 



I. From the Greeks to Darwiu. By Henry Fairfield 



OSBORN. 



II. Aiiipliioxus and the Ancestry of the Vertebrates. 



By Arthur Willey. 

 III. Fishes, Li vine: and Fossil. By Bashford Dean. 



IV. The Cell in Development and Inheritance. By 



Edmund B. Wilson. 



V. The Foundations of Zoology. By William Keith 

 Brooks. 



THE MACMILLAN COMPANY, 



66 FIFTH AVENUE, NEW YORK. 



