420 ANNALS NEW YORK ACADEMY OF SCIENCES 



Professor Crampton also gave a description of two active volcanoes, 

 namely, Savaii in Samoa and Kilauea in Hawaii. Other older islands of 

 volcanic nature were brought into relation with these examples, as later 

 stages in the production of deeply-furrowed land masses like Tahiti, 

 where conditions are such that isolated valley stations are found to be the 

 homes of separate colonies of snails. Eegarding the relation of such 

 islands to other weathered peaks like Borabora, to coral atolls and to 

 islands of uplifted coral limestone like many examples in the Cook and 

 Tonga groups, the Darwin-Dana doctrine was contrasted with the view of 

 Agassiz. It was pointed out that the phenomena of distribution in the 

 case of species of Partula gave unquestioned support to the Darwin-Dana 

 doctrine of a major process of subsidence, although secondary sporadic 

 examples of the reverse process of uplift may be demonstrated at different 

 points of the South Pacific Ocean. 



The paper was illustrated with lantern slides and specimens. 



The Section then adjourned. 



William K. Gregory, 



Secretary pro tern. 



SECTION OF ASTRONOMY, PHYSICS AND CHEMISTRY. 



May 16, 1910. 



The Section met at 8:15 p. m., Vice-President W. Campbell, presiding. 

 The minutes of the last meeting of the Section were read and approved. 

 The programme for the evening consisted of the following public 

 lecture : 



S. A. Mitchell, The Return of Halley's Comet. 



Edward J. Thatcher, 



Secretary. 



BUSINESS MEETING. 



October 3, 1910. 



The Academy met at 8:15 p. m. at the American Museum of Natural 

 History, Vice-President George F. Kunz presiding. 



On motion, the business meeting was adjourned to October 17, 1910. 



Charles P. Berkey, 



Secretary pro tern. 



