I November, 1918 



THE PHILIPPINE 



JOURNAL OF SCIENCE 



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



GENERAL EDTTOB 



Section A 



CHEMICAL AND GEOLOGICAL SCIENCES 

 AND THE INDUSTRIES 



H. C. BRILL, Ph. D.; J. R. WRIGHT, Ph. u ; w ii / 



T. DAR JUAN, A- B., pH. D.; A. H, WELLS, A. B. 



R, a McGregor, a B: a. k kupfer! a. b. 



A ICji/-- 



UAmUk 



LWW-IAU OF PHlNTlNa 



