Vol. V 



MAY, 1910 



No. 3 



THE PHILIPPINE 



JOURNAL OF SCIENCE 



EDITED BY 



PAUL C. FREER, M. D., Ph. D. 



WITH THE COOPERATION OP 



W. D. SMITH, Ph. D.; ALVIN J. COX, Ph. D.; H. D. GIBBS, B. S. 

 GEORGE I. ADAMS, D. Sc; NELLIE LOUISE COOK, B. L., M. A. 



PUBLISHED by 



THE BUREAU OF SCIENCE 



OF THE 



GOVERNMENT OP THE PHILIPPINE ISLANDS 



A. Chemical and Geological Sciences and 

 the Industries 



MANILA 



BUREAU OP PRINTING 



1910 



