VOL. VIII MAY, 1913 No. 3 
THE PHILIPPINE 
JOURNAL OF SCIENCE 
ALVIN J. COX, M. A., Ph.D. 
GENERAL EDITOR 
Section C. Botany 
E. D. MERRILL, M. S. 
EDITOR 
WITH THE COOPERATION OF 
C. B. ROBINSON, Ph. D.; P. W. GRAFF, B. S. 
W. H. BROWN, Ph. D. 
MANILA 
BUREAU OP PRINTING 
1913 
