504 GEOLOGY OF OHIO 
prise at present one charcoal furnace and five coal and coke furnaces. 
The ‘largest of the stone coal furnaces are the Blanche and Grace 
furnaces, about a mile north of the railroad depot, which were originally 
built on the Ferrie self-coking plan, but have been altered, owing to the 
slow working of the system, and are now run regularly as ordinary 
coke furnaces. One of them, Grace furnace, has however never been 
lined or put in blast. The big furnace is 86 feet high. At present 
it is making about 50 tonsa day. The furnace is somewhat burned 
out, and running on part time. 
The equipment of the works is on a very elaborate plan. The 
buildings of brick, roofed with iron, comprise a large and finely equipped 
stock-house, casting and boiler-houses. The steam-hoist, which suy-plies 
both furnaces, is built with an iron frame-work and open sides. The 
furnace has vertical engines and cylindrical boilers. The olast is heated 
by Whitwell fire-brick stoves. The works have never run to their full 
capacity, owing to difficulties in the management, and in the supply of 
stock, but are considered as having a capacity of 66 tons a day for each 
stack. A feature of some interest in the works is the method by which 
the slags are removed from the furnaces, it being one of the few fur- 
naces providing for this being economically done. The slag is run into 
cast-iron buggies through a slag discharge or channel of cast-iron, and 
when the buggy is filled it is drawn off on a track to the river bank, 
where the slag is dumped. ‘The hot slag-bed, so common at many fur- 
naces, is thus avoided. Beyond the Etna furnace is the Sarah furnace 
of H. Campbell & Co., a comparatively new furnace, well equipped, 
and making over thirty tons of iron per day. The furnace is provided 
with one upright blowing engine, with Whitwell stoves, and is one of 
the best equipped furnaces in the district. 
The Belfont furnace is situated near the city. Its companion, the 
Grant, has been quite recently torn down, to make room for the Kelly 
Nail Co. now being built. The Belfont furnace makes a specialty of 
mill iron, which is cast into chill-beds or molds of cast-iron instead of 
sand; this chilling diminishes the amount of sand held by the iron, and 
causes a less destruction of fix in the subsequent operation of puddling 
for the manufacture of wrought-iron. 
Maggie furnace, of the New York & Ohio Iron and Steel Co., is 58 
feet in height by 16 in the bosh; it is equipped with Player pipe stoves 
and two blowing engines, 66 by 54 inches; this furnace is worked in 
