1841.] 



THE NATIONAL INSTITUTION, 



121 



Four Medals, electrotyped by the same. — From the same. 



Three Cat Squirrels, {Sciiirus cmereus.) — From Theoduric B. Skin- 

 ner. 



Gray Squirrel, (Sciurus carolinensis,) from Somerset County, Eastern 

 Shore Maryland. — From Theodoric B. Skinner. 



Perna Maxillata imbedded in blue clay, from the estate of George 

 Wilkinson, near Huntingdon, Calvert County, Maryland. — From 

 Mr. Wilkinson. 



Fossils from the Calvert Cliffs. — From Dr. James Tongue, Calvert 

 County, Maryland. 



Fossils from the Patuxent. — From Dr. G. Granger Tongue, Cal- 

 vert County, Maryland. 



Crystalized Selenite, from the estate of Dr. Robert Neale, below the 

 mouth of the Patuxent, St. Mary's County, Chesapeake Bay. — 

 Fro7n Dr. Neale. 



Selenite and Fossils, from St. Mary's river, Maryland. — From Dr. 

 James W. Roach. 



Panopea Americana, Stc, from the Patuxent. — From Chapman Bil- 

 lingsly, St. Mary's Comity, Maryland. 



Shells, &;c. — From Mrs. Dr. J. Mitchell, of Sidney, New South 

 Wales. 



Catalogue of Shells, fcc, presented by Mrs. Mitchell. 



1 Galeolaria, group 2 Ostrea, 



on sand stone. 3 Terebratula, 



2 CorunuIsB, 



3 Balanus, 



2 Cleidothoerus, 



4 Venerirupis, 

 1 Tellina, 



3 Cytherea, 

 C Venus, 



3 Area, 



5 Cyclas, 



4 Chama, 



2 Crepidula, 



9 Ancylus, 

 12 Chiton, 



1 Chitonellus, 



4 Patella, 



2 Bulla, 

 19 Helix, 



1 Cyclostoma, 



2 Vitrina, 

 10 Limnoea, 



8 Geological specimens from Carbo- 

 niferous formation. 

 2 Mineralogical specimens. 



3 Nerita, 5 Triton, 

 2 Partula, 1 Cassis, 



2 Stomatella, 4 Purpura, 



4 Haliotis, 12 Buccinum, 



1 Solarium, 2 Nassa, 



6 Trocus, 2 Mitra, 



3 Littorina, 1 Voluta, 



2 Phasianella, 1 Cymba, 



2 Turbo, 48 Cyproea, 



5 Cerithium, 16 Oliva, 



3 Turbinellus, 7 Conus. 



7 Strombus, 



5 Papers of Seed. 



1 Box of Insects. 



1 Large section of Fossil Wood. 



Anadonta, found near the President's House, on the Potomac. — 

 From H. C. Williams. 



