THE PHILIPPINE JOURNAL OF SCIENCE 
I^iblished by the Bureau of Science ci the Governuient of the Philippine Islands 
Elmer D. MEBJtiLL, M.S., EdtW 
R. C. McGregor, A.B., Xssoct'oie 
Albert H. Wells, A.B.; GranvielB A. Perkins, Ph.D,- A. P. West, Ph.D. 
T. Pas Juan, A.B., Phar.D.; P. Agcaoili, A.B. 
Chemistry and Geology 
: H. W. Wade, M.D. ; Otto ScHOBL, M.D. 
F. G. Haughwout; Stanton Youngberg, P.V.M. 
■ Sxpeninental Medicine 
Liborio GohtEz, M.D., Ph.D.; F. Calderon, B;A., P.M. 
Vicente de Jesus, M.D. 
Clinical Medicine 
W. H. Brown, PH.Ih; C. F. Baker, M.A.; H. S. Yates, M.S., Ph.D. 
O. A. Reinking, B.S.A., M.S.; L. M, Guerrero, Ppar.D. 
Sam F. Trelease, Ph.D. ' 
Botany 
C. F. Bakes, M.A. ; S. F. Light, M.A.; C. S. Banks, M.A. 
L. D. Wharton, M.A.; W. Schultze; H. 0. Beyer, M.A.- 
Zoology and Ethnology 
A. B. BanyEA, Copy Editor 
Manuscript intended for publication and books for review should be sent 
to the editor. One hundred -separates of papers published in the Journal 
are furnished to authors without charge. Additional copies may be had at. 
authors’ expense. 
Publications sent in exchange for the Philippine Journal of Science 
should be addressed: Library, Bureau of Science, Manila, P. I. 
The Journal is issued twelve times a year. The subscription price , is 5 
dollars United States currency per year. Single numbers, 50 cents each. 
Subscriptions may be sent to the Business Manager, Philippine Jour- 
nal of Science, Bureau of^ SOience, Bfanila, P. I., or to any of the agents 
listed on the third pAge of this cover. . 
