68 



was formed by the combination of silica, alumina and lime 

 in water. The laws governing this action, he considered 

 to be perfectly obvious to the chemist. 



A letter from M. Lienard, dated Port Louis, Mauritius, 

 June 25, 1844, recently received by the hands of Mr. 

 Samuel, was read. It announced that M. Lienard had 

 sent by Mr. S. specimens of Pedum, and a head of the 

 Histi'iophorus iiidicus, for the Society. These specimens, 

 however, were not forthcoming. M. L. intimated his in- 

 tention of sending a box of shells, and several of his own 

 publications concerning the meteorology of Mauritius. 



A letter from Mr. Tuomey, containing a list of fossil shells 

 sent by him to the Society, was read. 



The following gentlemen were elected corresponding 

 members : S. C. Clark, Chicago, Illinois ; A. Clapp, New 

 Albany, Indiana. 



DONATIONS TO THE CABINET. 



Fossils from Gay Head. From J. B. S. Jackson. 

 A box of fossil shells, from the tertiary strata near Petersburg, 

 Virginia. From M. Tuomey. 



ADDITIONS TO THE LIBRARY. 



Audubon and Bachman. Quadrupeds of N. America. Plates 

 50 to 55. Subscribers. 



Ruschenberger's First Books of Natural History. From the 

 Author. 



SepL 17, 1845. 

 The President in the Chair. 



A letter from Rev. Francis Mason, missionary in Tavoy, 

 Burmah, was read. It contained notices of the Zoology of 



