ue.
Union, 720,000 $43,200
Sligo, 400,000 32,000
Pittsburg, 782,887 86,544
Grant's Hill, 500,000 20,000
Juniata, 500,000 30,000
Pine Creek, 457,000 34,100
Miscellaneous factories, 360,000 28,200

The foregoing table was constructed in 1831. Doubtless this branch of
business has greatly increased.

The same year there were 12 foundries in and near Pittsburg, which
converted 2963 tons of metal into castings, employed 132 hands, consumed
87,000 bushels of charcoal, and produced the value of $189,614.

The following sketch of manufactures in Pittsburg and vicinity, is
copied from Tanner's Guide, published in 1832:

Steam engines 37, which employed 123 hands. Value, $180,400.

Cotton factories 8, with 369 power-looms, 598 hands; value, $300,134. In
the counties of Westmoreland and Alleghany, there are 5 cotton
factories.

In Pittsburg and the two counties just named, are 8 paper mills, valued
at $165,000.

In Pittsburg and vicinity are 5 steam mills, which employ 50 hands.
Value of their products annually, $80,000.

There are 5 brass foundries and 8 coppersmiths' shops. Value of the
manufactures, $25,000.

Within the limits of the city, there are 30 blacksmiths' shops, which
employ 136 hands. There are also 4 gunsmiths, and 9 silversmiths and
watch repairers.

In Pittsburg and the counties of Westmoreland and Alleghany, there are
26 saddleries; and 41 tanneries, 64 brick yards, and 11 potteries. There
are in the city 4 breweries, and 4 white lead manufactories, at which
7,400 kegs are made annually; value, $27,900.

There are 6 printing-offices in Pittsburg, and 6 more in the two
counties.

The estimated value of the manufactures of every kind in Pittsburg, and
the counties of Alleghany and Westmoreland, in 1831, was $3,978,469.

Doubtless they have greatly increased since.

_Coal._--The bituminous coal formations around Pittsburg are well
deserving the attention of geologists. Coal Hill, on the west side of
the Monongahela, and immediately opposite Pittsburg, is the great source
of this species of fuel, and the miners, in some places, have perforated
the hill to the distance of several hundred feet. It is found in strata
from 6 inches to 10 or 12 feet in thick