The 
Plant World 
31 ifttagaswe of popular iBotaup 
VOLUME 8 
NUMBER 7 
JULY, 1905 
Containing 
A Brief History of Ecological Work on Botany. Professor Howard 
S. Reed.163 
Fasciation in Field Peas. Professor Frederick H. Blodgett . . . 170 
Cleistogamous Flowers and the Theory of Adaptation. B. C. G. . . 177 
Fasciation: Its Meaning and Origin. A. A. K.183 
The Teachers Department: 
The Daily Periodicity of Cell-Division and of Elongation in 
the Root of Allium. C. J. M. .... 183 
The Great Abundance of Pollen. j86 
Reviews : 
Goodrich’s The First Book of Farming. I. D. C .186 
Atkinson’s A College Text-Book of Botany. C. S. G .187 
Osterhout’s Experiments with Plants. C. S. G .188 
Copyright, 1905, by Francis Ernest Lloyd. 
Entered as Second-Class Matter February q, /qoj, at the Post-Office, at Lancaster, Fa., under the 
Act of Congress of March 3, i8jq. 
