The cooking-range, a large one designed to burn anthracite coal, was the general warming apparatus.

Their smokestacks could be lowered to the deck, and they burned anthracite coal, which made no smoke.

Philip also wrote to Ruth; but though this letter may have glowed, it was not with the heat of burning anthracite.

"It was," said he, "a screw steamer, and we were burning anthracite coal that made no smoke.