THE PHILIPPINE 



JGIIENAL OF SCIENCE 



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



GENERAL EDITOR 



/ 



Section A 



CHEMICAL AND GEOLOGICAL SCIENCES 

 AND THE INDUSTRIES 



EDITED WITH THE COOPERATION OF 



W. E. PEATT, A. M.; H. C. BRILL, Ph.D.; J. R. WRIGHT, Ph. D. 



G. W. HEISE/M.S;;X C. WITT, Ph.D.; T. DAR JUAN, A. B. 



R. C. McGRE60R, a. B, ; H. E. KtJPFER, A. B. 



MANIUA. 

 BUEEAtJ OF PKINTING 



1916 



