EDITORIAL COMMITTEE OF THE 



UNITED STATES DEPARTMENT OF AGRICULTURE AND 



THE ASSOCUTION OF LAND-GRANT COLLEGES 



FOR THE DEPARTMENT 



KARL F. K^LI/ERMAN, Chairman J. 



Physiologist and Associate Chief, Bureau 

 of Plant Industry 



EDWIN W. ALLEN 



Chief, OMce of Experiment Stations 



CHARLES L. MARLATT 



Entomologist and Assistant Chief, Bureau 

 ofEntomoloiff 



FOR THE ASSOCIATION 



G. LIPMAN 



Dean, State College of Agriculture, and 

 Director, New Jersey Agricultural Experi- 

 ment Station, Rutgers College. 



W. A. RILEY 



Entomologist and Chief, Division of Ento- 

 mology and Economic Zoology, Agricul- 

 fural Experiment Station of the UnrversUy 

 of Minnesota 



R. L. WATTS, 



Dean, School of Agriculture, and Diredor, 

 Agricultural Experiment Station, The 

 Pennsylvania State 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 J. G. Lipman, New Jersey Agricultural Experiment Station, New 

 Brunswick, N. J. 



