358 



recently yielded only a fossil Lingula ; afterward a Conocephalus 

 was discovered in it ; Mr. Marcou considers this not the first fos- 

 siliferous stratum, but the last of a series containing the primordial 

 fauna. These primordial forms have been found also in Wisconsin 

 and Minnesota, and in Spain. 



Mr. Marcou read extracts from letters of M. Barrande in refer- 

 ence to this subject. 



The Corresponding Secretary read the following list of 

 letters recently received : 



From Mr. P. B. Du Chaillu, accenting Corresponding Mem- 

 bership ; from the Leeds Philosophical and Literary Society, 

 July 13 ; the K. K. Akademie der Wissenschaften, Wien, Jnne 25 ; 

 Zoologisch-Botanische Gesellschaft, Wien ; Gesellschaft der Wis- 

 senschaften, Gottingen, June 3 ; Naturforschende Gesellschaft, 

 Emden ; Oberhessische Gesellschaft fiir Natur-und-Heilkunde, 

 Giessen, June 2 ; the London Geographical Society, July 24 ; 

 and the Literary and Philosophical Society of Manchester, 

 May 31, acknowledging the reception of the Society's pub- 

 lications, or sending theirs in return. 



Messrs. A. S. Bickmore, of Cambridge, and Robert T. 

 Edes, of Dorchester ; and Drs. A. D. Sinclair, of Boston, 

 and J. H. Stickney, of Newton; were elected Resident 

 Members. 



November 7, 1860. 



The President in the Chair. 



Mr. Du Chaillu presented descriptions of mammals 

 from equatorial Africa, collected by himself, and believed 

 to be undescribed, as follows : — 



( Continued from page 304.) 



Troglodytes Kooloo-Kamba. This chimpanzee-like ani- 

 mal was discovered by me in the mountains of the interior, situated 



