xliv. 



Egg and teeth of Alligator , Buenos Ayres. From Dr. H. W. Kennedy, 



Ophiura, from Callao ; Echinus, from the Gulf of Siana ; and same from Bonin 

 Isles ; Limulus . From Dr. Ruschenberger. 



November ^th. 



Remarkably fine specimen, 1^ feet in length, of Crystalline native Copper, 

 from Isle Royal, Lake Superior. Presented by B. H. Hoopes, Esq. 

 Twenty-nine specimens of American Marine Algae. From Mr Fahnestock. 

 Fossil shell, from Cumberland Co., New Jersey. From Mr. Thomas Fisher. 



Novemher 9th 



Scull of Dycoteles torquatus ; a Testudo ; labial and palatine teeth of a large 

 fish, from South America. Presented by J. C. Trau twine. 



Vanellus lampronotus, from Chili. Presented by Dr. Ruschenberger. 



Two Crania of Delaware Indians, dug up in excavating a street in Philadel- 

 phia. Presented by Geo. P. Oliver, M. D. 



Sciurus Hudsonicus, from Pennsylvania; two nodules of clay iron-stone with 

 coprolites as nuclei, from the coal formation near Edinburgh. Presented by 

 Dr. Samuel Lewis. 



Two Sharks' Teeth, eight Fossil Shells, from Barbadoes. From the same. 



Vertebra of Mosasaurus, from New Jersey. From Mr. T. A. Conrad. 



Arvicola hirsutus, from Philadelphia ; Hemidactylium scutatum and Ophio- 

 saurus ventralis, from Georgia. Presented by Dr. John Le Conte. 



Spondylus zonalis, Spondylus (?) Chama lazarus, and group of Spondylus 



and Chama, from the Sooloo Islands. Presented by Mr. Edw. Wilson. 



December 1th, 



A collection of casts and original specimens of Silurian and Cretaceous 

 Fossils, collected during the survey of Iowa, Wisconsin, &c. Presented by 

 iDr. D. D. Owen. 



Sciurus cinereus, from Pennsylvania (mounted). Presented by Dr. Woodhouse-. 



Mustela lutreola, from Delaware. From Dr. Wilson. 



Two specimens of Sorex parvus, Say^ from New Jersey. From Mr. Ashmead. 



Mustela putorius, var., from Illinois. Presented by Mr. J. D. Sergeant. 



Didelphis virginiana (mounted). From Dr. Heermann. 



Ramphastos culminatus, Gouldt Trachyphonus serrirostris. Strict., Cassicus 

 yuracares, J)'Or&., Ardea agami, from Peru. Presented by Jos. A. Clay, Esq. 



Collection of Quadrupeds, Birds and Reptiles, in spirits, and a collection of 

 Bird Skins from California and Oregon. Presented by Col. Geo. A. M'Call, 

 U. S. Army. 



Calliste calliparaea, from Bogota. Presented by Mr. Benj. Blagge, New York, 

 through Mr. John G. Bell. 



Specimens of Ptilogonys nitens, Sut.^ Embernagra Blandingiana, Gamt., 

 Loxia Americana, Lm?i., Ammodromus ruficeps, Ca>j5i, Emberizarostrata, Cas- 

 sin, Trochilus Alexandri, Bourcier, Larus Heermanni, Cassiiif from California. 

 Presented by Dr. Heermann. 



Spermophilus tridecimlineatus, Felis canadensis, Pteromys volucella, Grus 

 canadensis, Anas acuta, Numenius longirostris, from Illinois. Presented by 

 J. D. Sergeant, Esq. 



December 2\st. 



A collection of Plants from Texas, New Mexico and the neighborhood of St. 

 Louis. Presented by Dr. Geo. Engelmann, of St. Louis. 



Fossil Coral, Shells, two Trilobites and two other fossils. Presented by Dr. 

 Senseny, through Dr. John M'Clellan. 



Cranium of Ardea Herodias. From Dr. S. W. Woodhouse. 



