Vol. IV 



NOVEMBEE, 1909 



THE PHILIPPINE 



No. 6 



JOURNAL OF SCIENCE 



EDITED BY 



PAUL C. FREER, M. D., Pi 



CO-EDITOR, 



15. X ^^z- 



/^>N 



RICHARD P. STRONG, Ph. B., M. D?s-^< . ^ ^ ,, 



WITH THE COOPERATION OF 



MERTON L. MILLER, Ph. D.; GEORGE F. RICHMOND, M. S. 



W. D. SMITH, Ph. D.; ALVIN J. COX, Ph. D. 



RAYMOND F. BACON, Ph. D.; CHARLES S. BANKS, M. S. 



H. D. GIBBS. B. S.; R. C. McGREGOR, A. B. 



published by 



THE BUREAU OF SCIENCE 



OF THE 



GOVERNMENT OF THE PHILIPPINE ISLANDS 



A. GENERAL SCIENCE 



MANILA 



BUREAU OF PRINTING 



1909 



