A Text-book on the Principles of Animal 
Histology 
By ULRIC DAHLGREN, M.S., Assistant Professor of 
Biology in Princeton University; and WILLIAM A. 
KEPNER, A.B., Adjunct Professor of Biology in the 
University of Virginia 
Cloth, 515 pp., 8v0, $3.75 net 
“The name of the senior author alone leads us to expect 
much from this volume, and the most -careful scrutiny 
reveals almost no defects. It easily takes first place 
among histologies, chiefly because of the invaluable com- 
parative element. With few exceptions, histologies, in- 
tended as they have been primarily for the medical student, 
have heretofore been based for the most part on the genus 
Homo. Morphologists and anatomists will welcome a 
general histology which in the widest sense holds to its 
title, treating its subject as a pure science. ... One 
can scarcely imagine a clearer or better arranged text-book 
either for the general student or for the specialist in any 
of the many related sciences. Since scientists in many 
fields often have occasion to refer to or to verify some 
point in histology, the volume will appeal to readers out- 
side of the domain of histology proper.” -—- Mew York 
Evening Post. 
“Tn marked contrast to practically all the text-books of 
histology in the English language, which deal largely or 
exclusively with human or mammalian structures, this new 
book discusses the tissues of all classes of animals. It is 
therefore possible to treat the subject much more broadly 
and satisfactorily than has hitherto been done.” — Amerz- 
can Journal of Science. 
“When one considers the narrow, technical training which 
students in histology usually receive, whether they be 
medical students or not, one cannot but wish that a course 
similar to that outlined in this book might be given in 
every college and university.” — Sccence. 
PUBLISHED BY 
THE MACMILLAN COMPANY 
64-66 Fifth Avenue, New York 
