

' f: f 



' VbtTini, Sec. b; No. 4 



July, 1917 



THE PHILIPPINE 



JOURNAL OF SCIENCE 



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



GENERAL EDITOR 



Section B 



Tropical Medicine 



EDITED WITH THE COOPEKATION 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. 



MANILA 



BUREAU OF PRINTING 



1917 



