14 
others, and illustrates the formation of modern strata from 
shells.—Wetmore. | 
4, Another fragment of the like. ig 
5. A third of the like. 
6. Rock, composed of comminuted shells, worn small by 
the waves, and concreting. 
7. An extensive and selected series of specimens, from 
Huntsville, Alabama, and its vicinity; by Dr. Samuel 
Brown ; consisting, among others, of 
(a) Entrochites, plain and characteristic. 
(6) Terebratulites, of more than ordinary size, though 
very distinct. 
(c) Encrinites, of very peculiar forms. 
(d) Cardites, fine and plain. 
(e) Fossils of several sorts, too peculiar to ie classified 
by the writer of this list. 
(f) Madreporites; some of ‘peg are of very singular 
shapes. 
These specimens are chiefly bedded in agate, or flint; 
and they are so curious and diversified, as to afford rare 
matter for investigation. 
8. A fossil oyster. Ontario county, New-York! 
9, Another and a larger oyster, with pectinites oe 
Locality not remembered. 
10. T'wo pieces of petrified wood; from Loch Neagh, 
-Treland.—S. Owens. | 
“11. Petrified wood ; part of the black walnut tree in the 
{Illinois river.—Governor Cass. 
12. A polished slab of lumachella marble, from Italy. 
18. Singular concretion of quartzy gravel, &c. ‘Coast 
of Peru.—Rodgers. 
14. Huge clam-shell, with a little oyster adhering. 
England. 
15. Nodule of flint; exhibiting the sinkelil spectacle of 
an agatized echinus, rniddediite round and round on its axis, 
within a cavity; and another one of the same ‘kind, fast in 
its hole. Exceedingly uncommon. England. 
