The Philippine Journal of Science 



Edited by 

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



The "PhiHppine Journal of Science" is issued as follows: 



Section A. General Science, $2, United States currency, per year. 

 Section B. Medical Sciences, ^3, United States currency, per year. 

 Section C. Botany, $2, United States currency, per year. 

 The entire "Journal," $5, United States currency, per year. 

 Single numbers, 50 cents, United States currency. 

 Authors receive 100 copies of their papers free. 

 The numbers of each section will appear as rapidly as material is avail- 

 able. Each section will be separately paged and indexed. 



Subscriptions may be sent to the DIRECTOR OF PRINTING, 

 Manila, P. I. 



Correspondence should be addressed to the Business Manager, Phil- 

 ippine Journal of Science, Manila, P. I. 



- t 



FOREIGN AGENTS. 



THE MACMILLAN COMPANY, 64-66 Fifth Avenue, New York. 

 Messrs. WM. WESLEY & SON, 28 Essex Street, Strand, London, W. C. 

 MARTINUS NIJHOFF, Nobelstraat 18, 's Gravenhage, Holland. 

 Messrs. MAYER & MULLER, Prinz Louis Ferdinandstrasse 2, Berlin, N. W. 

 Messrs. KELLY & WALSH, LIMITED, 32 Raffles Place, Singapore, S. S. 

 Messrs. A. M. & J. FERGUSON, 19 Baillie Street, Colombo, Ceylon. 



A limited number of unbound copies of previous volumes are available, 

 which may be secured from the Director of Printing at the following rates: 

 Volume I, 1906 (not divided into sections), $5, United States currency; 

 Supplement to Volume I, 1^2.50, United States currency; Volume I 

 (without supplement), $1, United States currency; all later volumes at 

 current subscription prices. 



(Copyrighted in the I'liilippin*^ lHlan<lH, September, 1907. Kntt^red at the post-offlce 

 at Manila, V. I., um necoiid-clasii luatter.) 



