For Students of Botany 
Physics and Chemistry 
The Role of Diffusion and Osmotic 
Pressure in Plants 
By Burton E. LIVINGSTON 
HE first part deals with a clear statement of the 
physical principles of diffusion and osmotic 
pressure, and will probably be found of use to begin- 
ners in physical chemistry and_ theoretical physics. 
The second part presents the literature of the physio- 
logical r6le of these factors in a connected and reada- 
ble form, and embodies the researches of the author 
as to the influence of the medium. 
“The treatment of the whole subject is clear and con- 
cise and forms an admirable addition to the literature of 
physiological botany. It will be found indispensable to 4 
students along these lines.”— 7he Plant World. 
xiv +150 pp., 8vo, cloth, ze¢, $1.50; postpaid, $1.60. 
The University of Chicago Press 
CHICAGO and 16 Fifth Avenue NEW YOR® 
