3'.52- 
^ 
HAWAII AGRICULTURAL EXPERIMENT STATION 
HONOLULU, HAWAH 
Under the supervision of the 
UNITED STATES DEPARTMENT OF AGRICULTURE 
BULLETIN No. 52 
MANGANESE CHLOROSIS OF PINEAPPLES: 
ITS CAUSE AND CONTROL 
BY 
MAXWELL O. JOHNSON, Chemist 
Issued July, 1924 
I 
\*A 
"v^rm* 
WASHINGTON 
GOVERNMENT PRINTING OFFICE 
1924 
