EDITORIAL COMMITTEE OF THE 
UNITED STATES DEPARTMENT OF AGRICULTURE AND 
THE ASSOCIATION OF AMERICAN AGRICULTURAL 
COLLEGES AND EXPERIMENT STATIONS 
FOR THE DEPARTMENT 
KARL F. KELLERMAN, Chairman 
Physiologist and Associate Chief , Bureau 
of Plant Industry 
EDWIN W. ALLEN 
Chief ', Office of Experiment Stations 
CHARLES L. MARLATT 
Entomologist and Assistant Chief, Bureau 
of Entomology 
FOR THE ASSOCIATION 
H. P. ARMSBY 
Director, Institute of Animal Nutrition, The 
Pennsylvania State College 
E. M. FREEMAN 
Botanist, Plant Pathologist, and Assistant , 
Dean, Agricultural Experiment Station of 
the University of Minnesota 
J. G. LIPMAN 
Director, New Jersey A gricultural Experiment . 
Station, Rutgers College 
All correspondence regarding articles from the Department of Agriculture should 
addressed to Karl F. Kellerman, Journal of Agricultural Research, Washington, D. 
All correspondence regarding articles from State Experiment Stations should 
addressed to H. P. Armsby, Institute of Animal Nutrition, State College, Pa. 
{TPS' 
