PROCEEDINGS 



OP THE 



ACADEMY OF NATURAL SCIENCES 



OF PHILADELPHIA. 



t 



1857. 



January 2S)th. 

 Col. M'Call in the Chair. 



Communications intended for publication in the Proceedings were 

 presented, entitled : 



Catalogue of the species of Bembidium found in the United States 

 and contiguous northern regions. By John L, LeConte, M. D. 



Index to the Buprestidse of the United States, described in the 

 work of Laporte and Gory, with notes. By John L. LeConte, M. D. 



Description of several new Mammals, from WcBtern Africa. By 

 John LeConte. 



Aluminium ; the progress in its manipulation, W. J. Taylor. 



Catalogue of birds collected by P. B. Du Chaillu, on the river Muni, 

 Western Africa, with descriptions of new species. By John Cassin. 



Which were severally referred to Committees. 



On leave granted. Dr. Leidy introduced a memorial to Congress, 

 praying that a report be ordered to be prepared on the collections of 

 Natural History, recently made by the North Pacific Exploring Ex- 

 pedition, under Com. Rodgers; which was referred to a Committee with 

 power to act. 



January 27th, 



Vice-President Bridges in the Chair. 



The Annual Report of the Publication Committee was read and 

 adopted. 



In accordance with the By-laws, an election for members of the 

 standing Committees for the present year was held, with the following 

 result :— 



1 



