Issued Decern ber 31, 1913, 
HAWAII AGRICULTURAL EXPERIMENT STATION, 
E. V. WILCOX, Special Agent in Charge. 
Bulletin No. 30. 
THE EFFECT OF HEAT ON 
HAWAIIAN SOILS. 
BY 
W. P. KELLEY, 
Chemist, 
AND 
WILLIAM McGEORGE, 
Assistant Chemist. 
UNDER THE SUPERVISION OF 
OFFICE OF EXPERIMENT STATIONS, 
U. S. DEPARTMENT OF AGRICULTURE. 
WASHINGTON: 
GOVERNMENT PRINTING OFFICE. 
1913. 
