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Vol. XI, Seg. B, No. 6 



November, 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. 



MANILA 



BXJREAU OF PRINTING 



1916 



