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THE PHILIPPINE 



JOURNAL OF SCIENCE 



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



GENERAL EDITOR 



Section B 



Tropical Medicine 



EDITED WITH THE COOPERATION OF 



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. G. CROWELL, M. D. 

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

 Committee on Clinical Medicine 



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



Volume XII 



1917 



With 10 Plates and 9 Text Figures 



160866 



MANILA 



BUREAU OF printing 



1917 



