PORTO RICO AGRICULTURAL EXPERIMENT STATION, MAYAGUEZ 
[Under the supervision of the Office of Experiment Stations, United States Department of 
Agriculture] 
Walter H. Evans, Acting Chief, Office of Experiment Stations, and Chief, 
Division 0/ Insular Stations 
STATION STAFF 
T. B. McClelland, Director. 
H. C. Heneicksen, Agriculturist. 
H. L. Van Volkenberg, Parasitologist. 
R. L. Davis, Plant Breeder. 
J. O. Carrero, Assistant Chemist. 
A. Arroyo, Minor Scientific Helper. 
C Alemar, jr., Principal Clerk. 
