350 GEOLOGY OF OHIO. 
venienced by the total lack of stone suitable for common foundations. It 
is to be presumed, however, that as the forest is cleared off, and the in- 
spection of the county by settlers is carried to greater detail, many other 
outcrops of rock will be discovered. The limestones of the Devonian, in 
the northern part of the county, are those most abundantly quarried for 
building stone, if not for quicklime, in north-western Ohio; and the ex- 
posures in the Auglaize River are destined to become important in the 
future occupancy of the county, inasmuch as they are the only known 
outcrops of the blue limestone, west of the great anticlinal, that afford 
favorable opportunities for working. They are the same as the Sandusky 
blue limestone, and ought to have supplied the city of Defiance with the 
foundation stone for the court-house, instead of its being brought from 
that distant city. Had quarries been fairly and fully developed at any 
points in Paulding or in Defiance county, doubtless the expense of im- 
porting stone that could have been obtained at so convenient a place near 
home would not have been incurred. 
In the survey of the county but two establishments for the manufacture 
of brick were met with. One is owned by Jasper N. Hughes, section 24, 
Caryall township, and the other by R. 8. Murphy, Antwerp. 
The Furnaces of Paulding County.—The heavy growth of timber in 
Paulding county has invited the establishment of furnaces for smelting 
the iron ores of Lake Superior. There are two such in full operation. 
One is known as the Antwerp Furnace, located at Antwerp, on the Mau- 
mee River, and the other as the Paulding Furnace, located at Cecil, section . 
23, Crane township. The ore is transported from Toledo by canal. The 
subjoined statistics, obtained of the proprietors in reference to these fur- 
naces, will give the best exemplification of their size and products. 
THe ANTWERP FURNACE, ANTWERP, Ouio.—Proprietors, Antwerp Furnace Com- 
pany; President, A. Cobb; Superintendent, William Sayles. 
Number of Furnaces—One ; built by this company in 1865. Height of stack, 42 feet 
height of boshes, 7 feet; height of hearth, 6 feet; height of tuyeres, 40 inches; diam- 
eter at throat, 3 feet 6 inches; diameter in boshes, 8 feet 10 inches; diameter at 
tuyeres, 3 feet; diameter of hearth, 3 feet; diameter of tuyeres, 34 inches; number 
of tuyeres, 3; temperature of blast, not known; pressure of blast, not known. 
Ores.—Kind and percentage, Lake Superior ores, 65 per cent. Location of mine, 
near Marquette, Michigan. Cost of ores, $10 at the furnace. Not roasted. 
Fuel.—Kind and cost, charcoal, 7; cents per bushel. Obtained at the furnace. 
Fuel per ton of iron, 180 bushels. Ore per ton of iron, 14 (about). 
Flux.—Kind and cost, limestone (Delhi beds of Corniferous), $8 per cord of 128 
solid feet. Obtained from the river at Antwerp. 
Charge.—Ore, 600 pounds; flux, 30 pounds; fuel, 20 bushels of charcoal. Charges 
in twenty-four hours, 70; production in twenty-four hours, 13 tons. Kind of iron: 
white, 1-12 of allis white; mottled, 4 of all is mottled; gray, 7 of all is gray. 
