xliv. 
Egg and teeth of Alligator ——, Buenos Ayres. From Dr. H. W. Kennedy. 
Ophiura, from Callao; Echinus, from the Gulf of Siam; and same from Bonin 
Isles; Limulus ——. From Dr. Ruschenberger. 
November 9th. 
Remarkably fine specimen, 135 feet in length, of Crystalline native Copper, 
from Isle Royal, Lake Superior. Presented by B. H. Hoopes, Esq. 
Twenty nine specimens of American Marine Alge. From Mr. Fahnestock. 
Fossil shell, from Cumberland Co., New Jersey. From Mr. ‘Thomas Fisher. 
November 23d. 
Scull of Dycoteles torquatus; a Testudo; labial and palatine teeth of a large 
fish, trom South America. Presented by Mr. J. C. Trautwine. 
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. Conrad. 
Arvicola hirsutus, from Philadelphia; Hemidactylium seutatum and Ophio- 
saurus ventralis, from Georgia. Presented by Dr. J. Le Conte. 
Spondylus zonalis, Spondylus -——(?) Chama lazarus, and group of Spon- 
dylus and Chama, from the Sooloo Islands. Presented by Mr. Edw. Wilson. 
December 7th. 
A collection of casts and original specimens of Silurian and Cretaceous 
Fossils, collected during the survey of Iowa, Wisconsin, &c. Presented by 
Dr. D. D. Owen. 
Sciurus cinereus, from Pennsylvania (mounted). Presented by Dr. Woodhouse. 
Mustela lutreola, from Delaware. From Dr. Wilson. 
Two specimens of Serex 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, Gowld, Tachyphonus serrirostris, Strich., Cassicus 
yuracares, D’Ord., 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 calliparea, from Bogota. Presented Dy, Mr. Benj. Blagge, New 
York, through Mr. John G. Bell. 
Specimens of Ptilogonys nitens, Sw., Embernagra Blandingiana, Gamb., 
Loxia Americana, Linn., Ammodromus ruticeps, Cassix, Emberiza rostrata, Cds. 
sin, Trochilus Alexandri, Bowrcier, Larus Heermanni, Onssti, 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 21st. 
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. 8. W. Woodhouse. 
