^ w*, 



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 



PhyiiUogist tend AssociaU Chief .Bureau 

 of Plant Industry - 



EDWIN W. ALLEN 



Chief, Office of Experimeitt Stations 



CHARLES L. MARLATT 



Entomologist and Assistant Chief , Bureau 

 of Entomology 



FOR THE ASSOCIATION 



H. P. ARMvSBY, 



Director, Institute ofAHimal Nutrition, The 

 Pennsylvania Stale College 



E. M. FREEMAN 



Botanist, Plant Pathologisl and. Assistant 

 Dean, Agricultural Experiment Station of 

 the Unixersily of Minnesota 



J. G. LIPMAN 



Director , New Jersey Agricttliural Experi- 

 ment Station, Rutgers College 



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 State Experiment Stations should be 

 addressed to H. P. Armsby, Institute of Anim:^' ^'Mtritinn, State College, Pa. 



