Vol. IV DECEMBER, 1909 No. 6 
THE PHILIPPINE 
JOURNAL OF SCIENCE 
EDITED BY 
PAUL C. FREER, M. D., Ph. D. 
CO-EDITOR 
RICHARD P. STRONG, Ph. B., M. D. 
WITH THE COOPERATION OF 
E. D. MERRILL, M. S.; F. W. FOXWORTHY, Ph. D. 
C. B. ROBINSON, Ph. D.; H. N. WHITFORD, Ph. D. 
PUBLISHED BY 
THE BUREAU OF SCIENCE 
OF THE 
GOVERNMENT OF THE PHILIPPINE ISLANDS 
C. Botany 
MANILA 
BUREAU OF PRINTING 
1909 
