THE PHILIPPINE JOURNAL OF SCIENCE 
Pubiishedvby the Bureau of Science of the Government of the Philippine Islands 
, Elmer D. Meupjll, M. S., Editor . / , ' 
C/ McGregor, A. B., Associate Editor 
Albert H. Wells, A. B.; J. R. Weight, Ph. D.; A. P. West, Ph. D. 
T. Dae Juan,‘A, B., Phar. D.; F. Agcaoili, A. B.; F.D. Eeyes> B, S. 
■ A. S..Aeguelles;'B/S. ; VictOWano ELicA5io,B,v 
Clieimstry, Physics, and Geology 
H. W; Wade, m; d.; Otto ,Sch6bl, M. D. 
: ' F.G. HAtrGHwpuT; Stanton :YqHNGBERG,p.V,^ 
' Expetirmntal Medicine 
Liborio Gomez, M. D;, Ph. D. ; F, Calderon, B. A;, L. M. 
, . : Vicente DE Jesus, l£p./ 
Clinical Medicine ■ ; ^ 
W. H. Brown, Ph. D; ; C.'F, Baker/M. A. ; H. S. Yates, M. S., Ph. D. 
. O. A. Reinking, B. S. A.,.M:. S/; L. M. Gt®{RERo, PHAR.,D. 
'Botany 
E. H. Taylor, A. B. ; R. P. Cowles, Ph. D. 
C. F. Baker, M. A, ; S. F.Xight/M. A.;, C. S. Bi^NKS, M. A. 
^ WwSghultze; E. O. BEyEE,'M. a. ’ , 
Zoology and Ethnology 
A. ^ A. B, BANYEAj Copy Editor 
Manusci'ipF intended for publieatioB. 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. Additionai copies may be had at 
authors’ expense.' ■ 
' Publications sent in. exchange for the Philippine Journal of' Science 
should be addYess^ : ' Ifibrary, . Bureau of Science, Manila, P, I. 
The Journal is issued twelve times a '^ear. The subscription pric® is 5 
dollars, Enitfed States cufrericy per year. Single numbers, 60; cents, each. ' 
Subecriptions may be ^sent to the Business Manager, Philippine Jour- 
nal of Science, Bureau of Science, Manila, P. I., or to any of the agents 
listed on the third page of this cover. 
