Beginning with Volume V, a new section, "Section D, Ethnology, Anthropology, and Gen- 

 eral Biology," will be added to the Journal. The price for the whole series to subscribers for 

 igio will be as heretofore, $5 United States currency. Single subscriptions to Section D will 

 be $2 United States currency. 



Beginning with 1911, the price of the entire Journal will be increased to $7 United States 

 currency. Section D will appear as often as material is available. 



CONTENTS. 



Page. 



SMITH, "WARREN D. The Essential Features of the 



Geology of the Philippine Islands 307 



SMITH, WARREN D. Geological Reconnaissance of 



Mindanao and Sulu. II. Physiography 345 



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



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currency per year. 

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

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



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The entire "Journal," $5 United States currenoy for Volumes II, HI, IV, and V. There- 

 after, $7 United States currenoy per year. 



Authors receive 100 oopiei of their papers free. 



Subscriptions should be sent to the Business Manager, Philippine Journal of Soience, 

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 number, 



FOREIGN AGENTS. 



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