COLLEGE ZOOLOGY 
By 
ROBERT W. HEGNER, Ph.D. 
Assistant Professor of Zodlogy in the University of Michigan 
Mlustrated, Cloth, 12mo, xxiv+733 pp., $2.60 net 
This book is intended to serve as a text for beginning students in uni- 
versities and colleges, or for students who have already taken a course in 
general biology and wish to gain a more comprehensive view of the animal 
kingdom. It differs from many of the college text-books of zodlogy now 
on the market in several important respects: (1) the animals and their 
organs are not only described, but their functions are pointed out; (2) the 
animals described are in most cases native species; and (3) the relations 
of the animals to man are emphasized. Besides serving as a text-book, it 
is believed that this book will be of interest to the general reader, since it 
gives a bird’s-eye view of the entire animal kingdom as we know it at the 
present time. 
Within the past decade there has been a tendency for teachers of zodlogy 
to pay less attention to morphology and more to physiology. As a promi- 
nent morphologist recently said, “‘ Morphology . . . is no longer in favor 
. .. and among a section of the zodlogical world has almost fallen into 
disgrace” (Bourne). The study of the form and structure of animals is, 
however, of fundamental importance, and is absolutely necessary before 
physiological processes can be fully understood; but a course which is 
built up on the “ old-fashioned morphological lines ” is no longer adequate 
for the presentation of zodlogical principles. 
The present volume has not been made by merely adding a description 
of the vertebrates to the author’s “Introduction to Zodlugy” (for a brief 
description of which see the preceding advertisement). On the contrary, it 
is a new work throughout, although the same general method of treatment, 
which proved so successful in the earlier book, has been employed in this 
one. Similarly, in the preparation of this book the author has submitted 
the manuscript of each chapter to a scholar and teacher of unquestioned 
authority in the particular field. The criticisms and suggestions thus se- 
cured have greatly increased both the accuracy and the practicability of 
the text. 
THE MACMILLAN COMPANY 
Publishers 64-66 Fifth Avenue New York 
