254 BOTANICAL GAZETTE [SEPTEMBER 
‘The life of inland waters 
This book? = eo — _ an i Connery 5 —— a comprehensive 
view of our fresh forganisms. The 
viewpoint is essentially ecological, ak a background of economic possibilities. 
The first portion of the volume consists of an introduction to the subject, that 
is to the science of limnology, including a historical sketch of important 
in its development and a glance at the present facilities for study, which 
include some 30 biological field stations in the United States and Canada. 
There follows a discussion of water with respect to its transparency, tempera- 
ture, and circulation, as well as its gas, mineral, and organic content. The 
various types of — habitats are then presented. These include ponds, 
and bogs. 
, streams, 
In the consideration of aquatic organisms, $7 pages are devoted to plant 
and 83 to animal forms. Concerning the latter the reviewer will venture 
no opinion, but the paragraphs on plant life seem interesting and accurate, but 
so general that they would need to be supplemented by good teaching in the 
field to accomplish their purpose. In such an ecological textbook the adjust- 
ment of organisms to the varied conditions of aquatic life under which 
_ exist, and the interaction of the aquatic communities are, of course, the most 
; important parts of the book, and considering the immensity of the field to be 
plexity of tl ial it would seem that the authors have 
been very successful. Still the book will have to be supplemented by a teacher 
with an unusually wide acquaintance with both plant and animal life in 
to teach the entire field effectively. Good illustrations and a fairly extensive 
bibliography add to the value of the volume.—Geo. D. FULLER. 
MINOR NOTICES m 
Fruit diseases—A recent textbook by Hester and Wanexsid discusses — 
from 
: _ the subject from an essentially New England viewpoint, omitting all ae 
t are of : t in many states and : a 
as 
Na ht ar of nes or pel oem The decom 
— 
= “Nemo, Jos Game Loe, J.7 T., The lie of inland waters. “8v0. = 8 : 
S. 244. ork: Comstock Co. 
I viewpoint rather oS 
