BOOK REVIEWS 
In this section are reviews of new, or particularly important and interesting books 
in the fields of natural science. Books dealing with botany or kindred subjects should 
be sent to the Editor, the University of Notre Dame. All other books for review 
should be sent to Carroll Lane Fenton, at the Walker Museum, the University of Chi- 
eayo, Ill. Publishers are requested to furnish prices with books. 
PRINCIPLES OF ANIMAL BioLocy. By A. Franklin Shull. McGraw-Hill 
Book Co. $3.50. 
It is a rare thing for anyone to write a textbook that is revolutionary 
in its material; it is still rarer for any one to produce a book that de- 
mands an entire revision of the teaching of a time-honored subject in 
natural science. For while we are willingeto teach new material, we 
insist on teaching it the oldest way, and efforts looking toward a change 
are whole-heartedly discouraged. 
But the teacher’s worship of what is old seems to possess little weight 
with Dr. Shull and his associates. He has written a book that, if 
accepted, calls for an almost complete change in the teaching of zoology. 
Cutting, slicing, and peering through miscroscopes all have their place, 
but according to Dr. Shull, that place is far away from general courses 
in zoology. He believes that a general knowledge of the larger facts 
of zoology are more essential than a knowledge of the muscles of a 
frog’s leg; that zoogeography deserves more space in a text than does 
taxonomy. He begins his woork with a chapter on the general divisions 
of zoology, and a history of the science; he ends it with a glossary of 
the terms that students are apt to have difficulty with. Between those 
two chapters are others dealing with such subjects as the morphology 
of cells, the processes of cell division, physiology of organs, reproduction 
and breeding habits, embryology, genetics and evolution, ecology, and 
paleontology. Every chapter is complete in itself; it may be read as 
well separately as with the balance of the book. Together, these chap- 
ters make up a volume that is even more remarkable than Dr. Cock- 
erell’s “Zoology.” The rebellion of Mr. Shull is complete; he strikes 
out for himself, and it must be acknowledged that he has gone a long 
distance. As I read his book I have but one regret—that I do not 
have the privilege of taking courses under its author’s instruction. 
: Chik. 
PARACELSUS. By John Maxson Stillman. The Open Court Co. 
Theophrastus von Hohenheim, or as he is more commonly called, 
Paracelsus, illustrates well the independence, the self-confidence, the 
