debied for the analysis of columbite , containing a metal 
once supposed peculiar to this country, but which the 
latter investigations of Wollaston have identified with tan¬ 
talum.:}: Menachanite , rutile , and negrine , all species of titan* 
ium or menachine , have been observed.! 
In Silver and Gold we fortunately are not abundant. To 
our citizens indeed the discovery of a bed of gypsum, or of 
salt, would be of infinitely greater use than the possession of 
the Peruvian mines. The latter metal has however been 
found in Virginia on the surface of the ground, and in Ca- 
barras county in North Carolina—In 1805 a quantity of vir¬ 
gin gold was brought from the latter place to the national 
mint, and coined into money to the amount of g 11,000. It 
still continues to be found in creeks, and the sand bordering 
on them. In coinage, copper is added to the gold to give 
It tenacity. 
The manufacture of plated ware, and jewelry, is very ex¬ 
tensive, and valuable. Mr. Gallatin states the annual value 
of the first alone, in Philadelphia, at g 100,000. This trade 
flourishes in every city on the continent. 
It remains to notice a metal of great value in the arts, 
viz. Lead . It has been discovered in several of the northern 
and middle states.* At Perkiomen in Pennsylvania, a mine 
is worked, yielding an ore which produces 70 per cent of 
metal, together with some silver. Lead mines also exist on 
the Kanhawa in Virginia; but the greatest are in Lou¬ 
isiana, in which country it is said that the metal is found 
over a tract 60 miles in length, and 20 in breadth.§ From 
analys is, it appear to bequite pure,|j The establishments 
for smelting the ore are not sufficiently matured, although 
Bruce No. 1. Appendix, Gov. Winthrop sent this mineral . 
to Sir Hans Sloane, whose collection forms a part of the British 
Museum. 
f Maclure’s Observations on the Geology of the United States j 
in the American Philosophical Transactions, vol. 6, p. 421. 
* At Northampton (Mass.) vide Sillimari’s account of this 
mine (Bruce, No. 2, p. 63.) and in New-York and New-Jersey. 
§ Vide Amer. M. and P. Register, vol. 2, p. 33. Also Stod- ! 
dert’s sketches of Louisiana. 
I) Vide Meade’s Analysis of an ore from Louisiana, (Bruce’s 
Mineral. Journ. No. 1, p. 7.) 
