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A solid hydrocarbon, 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.]

t burns with a nearly non luminous flame. The purer specimens consist almost wholly of carbon. Also called glance coal and blind coal.

An instrument for measuring the amount of carbonic acid in a mixture.

A hydrocarbon, C6H4.C2O2.C6H4, subliming in shining yellow needles. It is obtained by oxidation of anthracene.

The antorbital bone.

Of or pertaining to a portion of the horn of the hyoid bone.

ral water used as a table beverage. It is obtained from a spring in Apollinarisburg, near Bonn.

A marked prominence or process on any part of a bone.

or value on; to estimate justly; to value. To appreciate the motives of their enemies. Gibbon.

ccupying Arabia, and numerous in Syria, Northern Africa, etc. Street Arab, a homeless vagabond in the streets of a city, particularly and outcast boy or girl. Tylor. The ragged outcasts and street Arabs who are shivering in damp doorways. Lond. Sat. Rev.

A mineral identical in composition with calcite or carbonate of lime, but differing from it in its crystalline form and some of its physical characters.

An extinct genus of Bryzoa characteristic of the subcarboniferous rocks. Its form is that of a screw.

An archon's term of office. Gibbon.

A siliceous variety of calcite, or carbonate of lime, having a silvery-white, pearly luster, and a waving or curved lamellar structure.

A secret language or conventional slang peculiar to thieves, tramps, and vagabonds; flash.

asypidæ, peculiar to America. The body and head are incased in an armor composed of small bony plates. The armadillos burrow in the earth, seldom going abroad except at night. When attacked, they curl up into a ball, presenting the armor on all sides. Their flesh is good food. There are several species, one of which (t…

A body of persons organized for the advancement of a cause; as, the Blue Ribbon Army.

., many of which have an aromatic odor. They include many of the most important of the carbon compounds and may all be derived from the benzene group, C6H6. The term is extended also to many of their derivatives. -- Aromatic vinegar. See under Vinegar.

, order of battle; as, drawn up in battle array. Wedged together in the closest array. Gibbon.

od into arterial blood during its passage through the lungs, oxygen being absorbed and carbonic acid evolved; -- called also aëration and hematosis.