JNE, 1913 



THE PHILIPPINE 



JOURNAL OF SCIENCE 



ALVIN J. COX, M. A., Ph. D. 



GENER V.L 1 D] TOR 



Section A 



CHEMICAL AND GEOLOGICAL SCIENCES 

 AND THE INDUSTRIES 



EDITED WITH THE 



•ERATION OF 



\ D. SMITH. Ph. Ik. H. D. GIBBS, Pii D.; VV. 0. REIBLING, Ch. E. 

 W E PRATT, A. .M,; R. K WILLIAMS, M. S.; D. S. PRATT, PH. D. 

 RICHARD C. MCGREGOR, A. B. 



MANILA 

 BUREAU OF PRINTING 



1913 



