JOINT COMMITTEE ON POLICY AND MANUSCRIPTS 
FOR THE UNITED STATES DEPARTMENT 
OF AGRICULTURE 
E. W. AIXEN, Chairman 
Chief, Office of E xperiment Stations 
C. If. MAREATT 
Chairman, Federal Horticultural Board, and 
Associate Chief, Bureau of Entomology 
C. E. SHEAR 
Senior Pathologist in Charge, Plant Disease 
Survey and Pathological Collections 
FOR THE ASSOCIATION OF LAND-GRANT 
COLLEGES 
J. G. EIPMAN 
Dean, New Jersey College of Agriculture, and 
Director of Experiment Station 
H. W. MUMFORD 
Dean; Illinois College of Agriculture, and 
Director of Experiment Station 
S. B. HASKEEE 
Director, Massachusetts Experiment Station 
EDITORIAL SUPERVISION 
M. C. MERRIEE 
Assistant Director of Publications, in Charge of Scientific and Technical Manuscripts 
U. S. Department of Agriculture 
All correspondence regarding articles from State Experiment Stations should be 
addressed to J. G. Eipman, New Jersey Agricultural Experiment Station, New 
Brunswick, N. J. 
