Vol.! 
APRIL, 1914 
No. 4 
AMERICAN 
JOURNAL OF BOTANY 
OFFICIAL PUBLICATION OF THE 
BOTANICAL SOCIETY OF AMERICA 
CONTENTS 
Contribution to the life history and physiology of cylindrosporium on stone 
fruits. Bascombe Britt Higgins 145 
The physiological water requirement and the growth of plants in glycocoU 
solutions. Alfred Dachnowski and R. Gormley 174 
The auxo-thermal integration of climatic complexes D. T. MacDougal 186 
The role of winter temperatures in determining the distribution of plants. 
Forrest Shreve 194 
PUBLISHED 
IN COOPERATION WITH THE BOTANICAL SOCIETY OF AMERICA 
BY THE 
BROOKLYN BOTANIC GARDEN 
At 41 North Queen Street, Lancaster, Pa. 
Application made for entry as second class matter at the Post Office at Lancaster, Pa. 
