1841.] THE NATIONAL INSTITUTION. 81 



Pytheas de Marseille, et la Geograpliie de son temps, par Joachim 



Lelevvel. — From Mr. KallussowsJci, West River, Md. 

 Monograph of the Bivalve Shells of the river Ohio, translated from 



the French of C. F. Rafinesque, by C. A. Poulson. — From C. A. 



Paulson. 

 New fresh water Shells of the United States, by T. A. Conrad. — 



From C. A. Poulson. 

 History of the Federal Government, for the last fifty years, by Dr. 



Alden Bradford. — From the Author. 

 Report of the Geological Survey of Virginia, for 1840, by W. B. 



Rogers. — From the Author. 

 Fifth Annual Report of the Geological Survey of Pennsylvania, by 



Henry D. Rogers. — From the Author. 

 Journal of a Voyage to New South Wales, with engravings, by 



White, 1 vol. 4to.; London. — From J. G. Bruff. 

 Letters were read : — 



From A. T. Donnet, acting Charge d' Affaires of the United States, 

 Lisbon : Stating that he had forwarded a suite of polished and rough 

 Portuguese marbles. 



From Captain George W. Hughes, United States Army, Brussels : 

 Stating that Mr. Foster, a corresponding member, had placed in his 

 hands a collection of scientific books for the Institution. 



From D. B. Warden, Paris : Announcing that the Minister of Pub- 

 lic Works, of France, had authorized a collection of minerals to be 

 made for the Institution. 



From M. Queteletj Astronomer Royal, Brussels: Announcing a 

 present from him of a number of scientific volumes. 



From D. S. Macauley, United States Consul, Tripoli : Ofi!ering to 

 the Institution his collection of Ornithological and other specimens, 

 and expressing a purpose of collecting for the Institution. 



From Captain George W. Hughes, United States Topographical 

 Engineers : Transmitting two communications ; one being the first part 

 of Observations on the Copper and Tin mines of Devon and Cornwall. 

 The other, " Notes made during a tour through Belgium."* 



•Published in tho Journal of the Franklin Institute, Philadelphia. 



