

\'0L. VI 



APRIL, 1911 



Xo. 2 



THE PHILIPPINE 



JOURNAL OF SCIENCE 



EDITED BY 



PAUL C. FREER, M. D., Ph. D. 



AND 



RICHARD P. STRONG, Ph. B., M. D. 



WITH THE COLLABORATION OF 







OSCAR TEAGUE, M. S., M. D.; W. E. MUSGRAVE, M. D. 



VICTOR G. HEISER, M. D.; JOHN R. McDILL, M. D. 



FERNANDO CALDERON, M. D.; JOSE ALBERT, M. D. 



PHILIP K. GILMAN, A. B., M. D.; NELLIE LOUISE COOK, B. L., M. A. 



PUBLISHED BY 



THE BUREAU OF SCIENCE 



OP THE 



GOVERNMENT OF THE PHILIPPINE ISLANDS 



B. Medical Sciences 



MANILA 



BUREAU OF PRINTING 



1911 



