THE PHILIPPINE 



JOURNAL OF SCIENCE 



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



GENERAL EDITOR ffc£ 



Section A 



CHEMICAL AND GEOLOGICAL SCIENCES 

 AND THE INDUSTRIES 



■ C i T £ n v [TH rHl : ; VTION" OF 



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

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

 RICHARb C. MCGREGOR, A. B. 



MANILA 

 BUREAU OF PRINTINO 



1913 



