Account of a Remarkable Fossil Tree. 285 
fine specimens of bitter spar, occur in great quan~ 
tities at do. associated with silvery talc. 
4, vematite found on Diamond Hill, in Cumber- 
land, R. 1. It is found in an excavation, about forty feet in 
length, from five to twelve in width, and twenty in depth, 
which was made some years since in order to procure it. It 
alin in botryoidal, mamillary, stalactical and various other 
orms. 
5. Tremolite of different shades of green, near an old iron 
mine on Tower Hill, Cumberland. 
6. Epidote both massive and crystallized, of very fine 
colour, in quartz, at do. 
7. Actynolite in masses associated with tremolite, at do. 
8. Native magnet found in considerable quantity, though 
in ene: pieces, about a mile from the before mentioned 
Pp 
9. Crystallized hornblende at do. 
10. Lenticular argillaceous oxide of iron, termed shot 
ore by the workmen, obtained in abundance from a pond in 
Sharon, Mass. also an oxide of do. about the size and shape 
of a cracker, and of a yellowish brown colour, called cake 
ore, is found there ; both of which are used at the forges in 
that vicinity. 
found a few very good specimens of double refracting 
spar at Smithfield, and also one specimen of sulphur attached 
to the lime rock. Should these notices be considered of 
any importance, they are at your service. 
I am Sir, respectfull yours, 
TH OMAS H. WEBB. 
Pror. Bensamiy SItuiman. 
ee 
Art. VI.—Remarkable Fossil Tree, a about fifty miles 
S. W. of Lake Michigan, by his Excelleacy Gov. Lewis 
State of Illinois—extracted from a paper paper presented by 
Schoolcraft to the American Geological 
“ Tue tract of country nile the southern curve of 
lake Michigan from the sources of the Illinois river, is a nar- 
~ plat of table _ composed . a stratum of compact 
on. TV..,.INo. 
ooeee 
