Vol. V 



JULY, 1910 



No. 4 



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. So.; NELLIE LOUISE COOK, B. L., M. A. 



PUBLISHED by 



THE BUREAU OF SCIENCE 



OP THE 



GOVERNMENT OF THE PHILIPPINE ISLANDS 



A. Chemical and Geological Sciences and 

 the Industries 



DEC 7 I 



MANILA 



BUREAU OP PRINTING 



1910 



