EDITORIAL COMMITTEE OF THE 



UNITED STATES DEPARTMENT OF AGRICULTURE AND 



THE ASSOCIATION OF AMERICAN AGRICULTURAL 



COLLEGES AND EXPERIMENT STATIONS 



FOR THE DEPARTMBKT 



KARL F. KELLERMAN, Chairman 



Pkysiotogist and AssoUaU Ckitf, Bureau 

 of Plant Industry 



EDWIN W. ALLEN 



Chief, Office of Experiment Stationt 



CHARLES L. MARLATT 



Entomologist and Assistant Chief, Bureau 

 of Entomology 



FOR THB ASSOCIATIOW 



H. P. ARMSBY 



Director, Institute of Animal Nittriti<m,^Jit 

 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 Agricultural Expert" 

 ment Station, Rutgers College 



All correspondence regarding articles from the Department of Agriculture should be 

 addressed to Karl F. Kellerman, Joiunal of Agricultural Research, Washington, D. C. 



All correspondence regarding articles from State Experiment Stations should be 

 addressed to H. P. Armsby, Institute of Animal Nutrition, State College, Pa, 



