^l;w¥:vifii>>'A - ^ I 



-'r.^; ^t^f>c'' ^ '^' :' 



)L. XI, SEC. B, No. 5 



September, 1916 



THE PHILIPPINE 



JOURNAL OF SCIENCE 



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



GENERAL EDITOR 



Section b 



Tropical Medicine 



EDITED WITH THE COOPERATION OP 



J. A. JOHNSTON, M. D., Dr. P. H.; OTTO SCHOBL. M. D. 



STANTON YOUNGBERG, D. V. M. ;.H. W. WADE, M. D. 



Committee on Experimental Medicine 



J. D. LONG, A. M., M. D.; B. C. CROWELL, M. D. 



FERNANDO CALDERON, B. A., L.M. 



Committee on Clinical Medicine 



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



\^^^}\ 



lan 



/V 



MANILA 



BUREAU OF PRINTING 



1916 



