Columbia University Biological Series. 



EDITED BY 

 HENRY FAIRFIELD OSBORN, 



Ba Costa Professor of Zoology in Columbia Uniteraity, 



AND 



EDMUND B. WILSON, 



Prof essor of Zoology in Columbia UnicersUy. 



This series is founded upon a course of popular University 

 lectures given during the winter of 1892-;), in connection witli 

 the opening of the new department of Biology in Cohimljiu 

 College. The lectures are in a measure consecutive in ciiarac- 

 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 a])plicati()n 

 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 struftnre 

 and phylogeny of the Fishes or lowest V^ertebrates, 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 orio-inal delivery the lectures have been carefullv 

 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 Darwin. By Henry Faiufield 



OSBORN. 



II. Aiiiphioxus and the Ancestry of tlie Vertebrates. 

 By Arthur Willet. 

 III. Fishes, Living and Fossil. By Bashk.ko Dkan. 

 IV. The Cell in Development and Inheritance. ly 



Edmuxd B. Wilson. 

 Y. The Foundations of Zoology. By William Kmih 

 Brooks, ^^___ 



THE MACMILLAN COMPANY. 



66 FIFTH AVENUE, NEW YORK. 



