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PORTO RICO AGRICULTURAL EXPERIMENT STATION 
MAYAGUEZ, PORTO RICO 
Under the supervision of the 
UNITED STATES DEPARTMENT OF AGRICULTURE 
BULLETIN No. 31 
EXPERIMENTS WITH FERTILIZERS 
FOR COFFEE IN PORTO RICO 
BY 
T. B. McCLELLAND, Horticulturist 
UNIV 
poeuv 
U.S. DEPOSITORY 
Issued November, 1926 
% 
.4i 
* 5 
X 
~~+ it* 
WASHINGTON 
GOVERNMENT PRINTING OFFICE 
1926 
V 
X 
