VOL. II 
APRIL, 1907 
No. 2 
THE PHILIPPINE 
JOURNAL OF SCIENCE 
EDITED BY 
PAUL C. FREER, M. D., Ph. D. 
CO-EDITORS 
RICHARD P. STRONG, Ph. B., M. D. 
E . D. MERRILL, M. S. 
PUBLISHED BY 
THE BUREAU OF SCIENCE 
OF THE 
GOVERNMENT OF THE PHILIPPINE ISLANDS 
C. Botany 
MANILA 
BUREAU OF PRINTING 
1907 
