Vol. VIII, Sec. A, No. 1 



February, 1913 



THE PHILIPPINE 



JOURNAL OF SCIENCE 



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



GENERAL EDITOR 



Section A 



CHEMICAL AND GEOLOGICAL SCIENCES 

 AND THE INDUSTRIES 



EDITED WITH THE COOPERATION OP 



W. D. SMITH, Ph. D.; H. D. GIBBS, B. S.; W. C. REIBLING, Ch. E. 



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



RICHARD C. MCGREGOR, A. B. 



MANILA 



BUREAU OF PRINTING 



1913 



