some kind of glass
in them that they can look into and see the fire. The gas that is
thrown off by the burning of the coke and ore is returned to the
furnace and used as fuel, hence there is a great saving of coke.

Next we went to see the "roasters." The ore has to be roasted
before it is put into the furnace, to get as much sulphur out of
it as possible. After it comes out of a "roaster," instead of it
being of a gray color, most of it has a reddish tint. After being
roasted and before being put into the furnace limestone is added.
There are over twenty roasters. The next place we visited was
called the "tunnel head"--in plain language, the top of furnace
number two. We went up in an open elevator that quite took one's
breath away. At the top of the furnace is the "bell and hopper,"
which is a circular opening with a bell-shaped cover which keeps
in the gas. In the opening the ore and coke are put in, then the
bell is let down, and the fuel and ore is dropped into the
furnace.

After we came down from the tunnel head it was suggested that we
should visit the "drawing room." I wondered whether a furnace's
drawing-room was like one in a private house, but when we arrived
there I found that it was quite different. Instead of tables and
chairs it contained four engines, each having two fly-wheels about
twenty-two feet in diameter. These engines made the draught to
"draw" the fires, so the place they were in was called the
drawing-room.

To see the "casting" we had some time to wait after we had
completed our tour, having been almost everywhere, except on top
of the roasters. A railroad comes right to the furnace, and while
we were waiting a train of eight cars containing coke passed by.

At last it was almost ten o'clock, so we drew near the building
where they were to cast. We could hear and see them opening the
furnace-door to let out the ore and cinders. A locomotive and
several "cinder-tubs," the tubs looking like large iron pots, were
on a track beside the building, the front tub being under a trough
where the cinders came out. When one tub was full, a man would
hold the cinders back, and the engine would go forward until
another tub was under the trough.

Afterward the contents of the tubs were dumped on the bank of the
str