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^S-C I ! 



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. OILMAN, A. B., M. D. ; NELLIE LOUISE COOK, B. L., M. A. 



PUBLISHED BY 



THE BUREAU OF SCIENCE 



OF THE 



GOVERNMENT OF THE PHILIPPINE ISLANDS 



B. Medical Sciences 



Volume VI 



1911 



With 21 Plates, 5 Figures, 15 Charts, 3 Diagrams, and 2 Maps. 



^••^; ) 



/^ 



MANILA 

 BUREAU OP PRINTING 



1911 



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