PUBLISHED BY AUTHORITY OF THE SECRETARY 
OF AGRICULTURE, WITH THE COOPERATION 
OF THE ASSOCIATION OF AMERICAN AGRICUL¬ 
TURAL COLLEGES AND EXPERIMENT STATIONS 
EDITORIAL COMMITTEE 
FOR THE DEPARTMENT 
KARL F. KELLERMAN, Chairman 
Physiologist and Assistant Chief, Bureau 
of Plant Industry 
EDWIN W. ALLEN 
Chief, Office of Experiment Stations 
CHARLES L. MARLATT 
Assistant Chief, Bureau of Entomology 
FOR THE ASSOCIATION 
RAYMOND PEARL 
Biologist, Maine Agricultural Experiment Station 
H. P. ARMSBY 
Director, Institute of Animal Nutrition, The Penn¬ 
sylvania State College 
E. M. FREEMAN 
Botanist,-Plant Pathologist, and Assistant Dean, 
Agricultural Experiment Station of the Univer¬ 
sity of Minnesota 
All correspondence regarding articles from the Department of Agriculture 
should be addressed to Karl F. Kellerman, Journal of Agricultural Research, 
Washington, D. C, 
All correspondence regarding articles from Experiment Stations should be 
addressed to Raymond Pearl, Journal of Agricultural Research, Orono, Maine. 
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