mmmmm^mmmm, 



Vol. X, Sec. A, No. 2 



March, 1915 



THE PHILIPPINE 



JOURNAL OF SCIENCE 



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



GENERAli EDITOR 



Section A 



CHEMICAL AND GEOLOGICAL SCIENCES 

 AND THE INDUSTRIES 



EDITED WITH THE COOPERATION OF 



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



J R WRIGHT, Ph. D.; H. C BRILL. Ph. D.; G. W. HEISE, M. S. 



R. C. MCGREGOR, A. B.;H. E. KUPFER, Ph. B, 



^05. "ff^ 



MANILA 

 BUREAU OF PRINTINa 



1915 



