THE PHILIPPINE JOURNAL OF SCIENCE 



. (TENTH YEAR OF PUBLICATION) 



ALVIN J. COX, M. A., Ph. D. 



GENERAL EDITOR 



A Journal Devoted to the Scientific and Commercial 



Interests of tJie Tropics 



U.S. 



currency. 



Section A. Chemical and Geological Sciences and the Industries- $2,00 



Section B. Tropical Medicine 3.00 



Section C. Botany. Elmer D. Merrill, B. S,, M. S., Editor 2.00 



Section D. General Biology, Ethnology, and Anthropology. 



(Section D began witli Volume V) 2.00 



Entire Journal, Volume II, III, IV, or V 5.00 



Entire Journal, beginning with Volume VI 7.00 



Single numbers (except of Volume I) .50 



Each section is separately paged and indexed. 

 Authors receive 100 copies of their papers free. 

 Volume. I, 1906 (not divided into sections), and supplement, 



sold only witli a complete file of section A, B, or C 10.00 



Supplement to Volume I (Botany) 3.50 



A'olume I (without supplement) sold only with a complete file of 



section A, B, or C 6.50 



Single numbers of Volume I .75 



Subscriptions may be sent to the Business Manager, Philippine 

 Journal of Science, Bureau of Science, Manila, P. I., or to any of the 

 agents listed below. 



AGEXTS 



The Macmillan Company, 64-6 6 Fifth Avenue, New York, U. S. A. 



AVm. Wesley & Son, 2 8 Essex Street, Strand, London, AV. C, England. 



Martiniis Nijhoff, Langc Voorhout 9, The Hague, Holland. 



Mayer & Miiller, I'rinz Louis Ferdinandstrasse 2, Berlin, N. W., Germany. 



Kelly & Walsh, Ltd., 32 Baffles Place, Singapore, Straits Settlements. 



A. 31. «& J. Ferguson, 19 Baillie Street, Colombo, Ceylon. 



Thacker, Spink & Co., P. O. Box 54, Calcutta, India. 



