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. 
E. D. MERRILL, M. S. 
PUBLISHED BY 
THE BUREAU OF SCIENCE 
OF THE 
GOVERNMENT OF THE PHILIPPINE ISLANDS 
VoL. I Supplement 
1906 
With 33 Plates 
MANILA 
BUREAU OF PRINTING 
1906 
49082 
