Vol. VI 



JUNE, 1911 



No. 3 



THE PHILIPPINE 



JOURNAL OF SCIENCE 



EDITED BY 



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



WITH THE COOPERATION OP 



DEAN C. WORCESTER, A. B.; MERTON L. MILLER, Ph. D. 



LAWRENCE E. GRIFFIN, Ph. D.; CHARLES S. BANKS, M. S. 



ALVIN SEALE, A. B.; RICHARD C. McGREGOR, A. B. 



NELLIE LOUISE COOK, B. L., M. A. 



PUBLISHED BY 



THE BUREAU OF SCIENCE 



OF THE 



GOVERNMENT OF THE PHILIPPINE ISLANDS 



D. General Biology, Ethnology and 

 Anthropology 





MANILA 



BUREAU OF PRINTING 



1911 



