10 
6. A box, containing samples of the pond marl in Ulster 
county, New-York, where the skeletons and bones of the 
mastodons are sometimes found. Marl of the shells of 
fresh water molluscas. 
7. Calcareous marl, from alike origin at Dover, Dutch- 
ess county, New-York. 
§. The like, though of a browner hue, from Sharon, 
Connecticut. 
The shells of which these specimens consist, decaying 
and decayed, are two species of planorbis, two of spiror- 
bis, one of succineum, and some others. 
9. A bottle of testaceous sand, showing how shells worn 
down by the waves are, in the process of preparation, to 
form earthy strata. From the oceanic shore of Long- 
Island. ' 
(a) Salt water mud and shells. Long-Island. 
10. Cast in plaster, from Dr. Hayden of Baltimore, of 
an elephant’s tooth, found on the eastern shore of Maryland. 
11. Singular boat-shaped tooth of an elephant, found 
on Bennett’s farm, Middletown, New-Jersey ; from the re- 
gion where the relics on the second shelf were found.— 
Scudder. 
12. ‘Two teeth of the great mastodon, one large and one 
small; found in alluvial soil near Natchez.—Dr. Freiot. - 
13. Grinder of an elephant, said to be American; but 
locality not known, though the specimen is in excellent 
condition. . 
14. Huge tooth of an elephant, brought by A. Vache 
from a voyage beyond Cape Horn, and reported by him to 
have been found on some (to him unknown) island in the 
Pacific ocean. Good condition, with the exception of a 
fracture at one extremity. | 
15. Sound tooth of an elephant from Tuscany, in Italy; 
received as an offering of peculiar value, from the late 
learned and incomparable Dr. Albers of Bremen, and be- 
lieved by him to have belonged to one of the African quad- 
rupeds of war which crossed the Rhone, the Alps, and the 
Po, with Hannibal of Carthage. 
