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, C6H4.C2H2.C6H4, which accompanies naphthalene in the last stages of the distillation of coal tar. Its chief use is in the artificial production of alizarin. [Written also anthracin.]

A heavy green oil (partially solidifying on cooling), which distills over from coal tar at a temperature above 270º. It is the principal source of anthracene.

A hard, compact variety of mineral coal, of high luster, differing from bituminous coal in containing little or no bitumen, in consequence of which it burns with a nearly non luminous flame. The purer specimens consist almost wholly of carbon. Also called glance coal and blind coal.

Divination by inspecting a burning coal.

A coal-black marble, usually emitting a fetid smell when rubbed; -- called also stinkstone and swinestone.

A chronic lung disease, common among coal miners, due to the inhalation of coal dust; -- called also collier's lung and miner's phthisis.

A man-of-war carrying a large coal supply, and more or less protected from the enemy's shot by iron or steel armor. There is no distinct and accepted classification distinguishing armored and protected cruisers from each other, except that the first have more or heavier armor than the second.

or mineral particles of combustible substances remaining after combustion, as of wood or coal.

of cement for bridges, roofs, etc.; asphaltic cement. Artificial asphalt is prepared from coal tar, lime, sand, etc. Asphalt stone, Asphalt rock, a limestone found impregnated with asphalt.

A fossil plant from the coal formations of Europe and America, now regarded as the branchlets and foliage of calamites.

Coal-black; very black.

An explosive consisting of sodium nitrate, charcoal, sulphur, and petroleum.

To prepare, as food, by cooking in a dry heat, either in an oven or under coals, or on heated stone or metal; as, to bake bread, meat, apples.

The face of the coal at which miners are working.

A large, roomy boat for the conveyance of passengers or goods; as, a ship's barge; a charcoal barge.

where the strata dip inward, on all sides, toward a center; -- especially applied to the coal formations, called coal basins or coal fields.

To inclined upward so as to appear at the surface; to crop out; as, a vein of coal bassets.

A mass or heap of anything arranged like a bed; as, a bed of ashes or coals.

mmable liquid, C6H6, contained in the naphtha produced by the destructive distillation of coal, from which it is separated by fractional distillation. The name is sometimes applied also to the impure commercial product or benzole, and also, but rarely, to a similar mixed product of petroleum. Benzene nucleus, Benzene r…

An English fish, allied to the cod; the coalfish. [Written also billet and billit.]