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tic hydrocarbon, C10H8, analogous to benzene, and obtained by the distillation of certain bituminous materials, such as the heavy oil of coal tar. It is the type and basis of a large number of derivatives among organic compounds. Formerly called also naphthaline. Naphthalene red (Chem.), a dyestuff obtained from certai…

Jew's pitch, bitumen. -- Mineral pitch. See Bitumen and Asphalt. -- Pitch coal (Min.), bituminous coal. -- Pitch peat (Min.), a black homogeneous peat, with a waxy luster. -- Pitch pine (Bot.), any one of several species of pine, yielding pitch, esp. the Pinus rigida of North America.

l, which was brought by land. Sea-coal facing (Founding), facing consisting of pulverized bituminous coal.

A fine-grained sedimentary rock of a thin, laminated, and often friable, structure. Bituminous shale. See under Bituminous.

, a kind of slate containing sulphate of alumina, -- used in the manufacture of alum. -- Bituminous slate (Min.), a soft species of sectile clay slate, impregnated with bitumen. -- Hornblende slate (Min.), a slaty rock, consisting essentially of hornblende and feldspar, useful for flagging on account of its toughness…

, etc. Soft clam (Zoöl.), the common or long clam (Mya arenaria). See Mya. -- Soft coal, bituminous coal, as distinguished from anthracite, or hard, coal. -- Soft crab (Zoöl.), any crab which has recently shed its shell. -- Soft dorsal (Zoöl.), the posterior part of the dorsal fin of fishes when supported by soft ra…

A fibrous brown coal or bituminous wood.