The separation of the slag and iron is facilitated by throwing in some lime from time to time.

Of these, oyster or marine shells, burnt shale, and slag are most common.

Because, at the foot of the tree, as if broken off the stone, fragments of slag were found.

This cement is made of limestone and clay, or marl, chalk, and slag.

Slag and sand were delivered to the mixer by means of wheelbarrows.

Slag, being a man of feeling, opined that it was absence of mind.

Now the surface was a lethal desert of slag and rolling clouds.

In 1870, a youth sat upon the slag heap of a mine in California.

Tommy motioned me to keep my eye on the V-shaped cutting in the slag below us.

And do you see all those ashes, and slag, and cinders lying about?