ju XI; Sec. A, No. 4 1|||||||||P||||PPIP Jijty, 1916 



THE PHILIPPINE 



JOURNAL. OP SCIENCE 



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

 GE5NERAL EDITOR 



Section A 



CHEMICAL AND GEOLOGICAL SCIENCES 

 AKt^ TOE INBUSra^ 



EDITBD WITH TH?; COOPERATION OF 



W. E. PRATT, A.J«.;H.C. BRILL, Ph.D.; J. R. WRIGHT, Ph. D. 

 G. W. HEISEi Ji.a; J. C. WITT, Ph.D.; T. DAR JUAN, A. B. 

 IcGREGOR, A. B. ; H. E. KUPPER, A. B. 



MANILA 

 BUfUSAU OP PRINTING 



IMiS 



