28 
(j) Black flint, broken out of the black lime-stone at 
Black Rock. . 
(k) Plastic clay, from Goat Island. . 
(2) Moss, with a portion of soil. Falls. 
(m) Half a dozen specimens, giving indications of sul- 
phur. 
(n) Carbonate of lime changed to sulphate of lime; or 
in other words, lime-stone turning to gypsum. 
(0) About twenty pieces of the gypsum found at the 
Falls; some amorphous and opaque white, and others la- 
mellar and transparent; the former, when picked below the 
cataract, in small masses, called by the people, ‘ petrified 
foam’’ of the water. 
(p) Upwards of twenty specimens, chiefly ceratites (or 
cornuted madreporites), cardites, and some very singular 
forms; among which are an organ-pipe corallite, associ- 
ated with pyrites, and penetrated by petroleum; the pro- 
duction called petrified buffalo’s dung, &c. &c. 
(q) Shells of unios, or fresh water mussels, from the 
bottom of the cataract; with a jaw-bone. ~- 
(r) Shells in rock. Falls of Genesee River. 
(s) The singular whitish lime-stone ; from Fort Holmes, 
the highest ground on the island of Michillimackinac ; con- 
taining traces of shells.—J. B. Stevenson. 
(‘) Three specimens of dog’s-tooth ‘Spar ; from Put-in 
Bay, Lake Erie.—Douglas. 
43. Half a dozen samples, from the falls of West Canada 
Creek, near Trenton, Oneida county. Curious articles, 
from a most romantic region. 

N° VII. pe 
The eighth Shelf. 
ri. Six meteoric stones, or aérolites: 
(a) One which fell near Aigle of Normandy si in France- 
—J., C. Cabell. 
