VoL, I APRIL 15, 1906 Supplement I 
THE PHILIPPINE 
JOURNAL OF SCIENCE 
EDITED BY 
PAUL C. FREER, M. D., Ph. D. 
CO-EDITORS 
RICHARD P. STRONG, Ph. B., M. D. 
H. D. McCASKEY, B. S. 
ELMER D. MERRILL, M. S. 
PUBLISHED BY 
THE BUREAU OF SCIENCE 
OP THE 
GOVERNMENT OF THE PHILIPPINE ISLANDS 
MANILA 
BUREAU OP PRINTING 
1906 
