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Bituminous Shale – Black Forest

Bituminous Shale

an argillaceous shale impregnated with bitumen, which is very common in the coal measures.

Bivouac

an encampment of soldiers in the open air without tents, each remaining dressed and with his weapons at hand.

BIZERTA, a

Bitter Vetch

a name applied to two kinds of leguminous plants, (a) ervum ervilia, a lentil cultivated for fodder; and (b) all the species of orobus, e. g., the common bitter vetch of Great Britain, O. tuberosus, a perennial her-ba by Capes Ras-el-Zebib and El-Arid. baceous plant with racemes of purple flowers and sweet, edible tubers.

Bitter Wood

the timber of xylopia glabra and other species of xylopia, order anonaceæ, all noted for the extreme bitterness of the wood. The name is also given to other bitter trees, as the bitter ash.

BITTER-WORT, (gentiāna lutěa).

Bjerregaard

HENRIK ANKER (byer'e-gär), a Norwegian dramatic poet, born at Ringsaker, in 1792. His position in his country's literature is very influential, the plays, "Magnus Barefoot's Sons" and "A Mountain Adventure," being national models. A volume of "Poems" (1829) also displays genius. He died in 1842.

Black

the negation of all color, the opposite of white. There are several black pigments, such as ivory black, made from burned ivory or bones; lamp black, from the smoke of resinous substance; Spanish black, or cork black, from burned cork, etc.

Black Art

exorcism, the alleged ability to expel evil spirits from haunted houses or from persons bewitched; necromancy, or anything similar. The reason why it was called black was that proficients in it were supposed to be in league with the powers of darkness. cent. of caustic soda with calcium sul-

Black Ash

a mixture of 25 per phide, quicklime, and unburnt coal, obtained in the process of making sodium carbonate . The mixture of sodium sulphate, chalk, and powdered coal is fused sidue is the black ash. in a furnace, gases escape, and the re-

Black Assize

in English history, the High Sheriff and 300 other persons an assize held at Oxford in 1557, when died of infectious disease caught from the the prisoners. It was called also the fatal assize.

Black Band

a valuable kind of clay iron-stone occurring in beds in the coal measures, and containing 10 or 15 or even 30 per cent. of coaly matter.

Most of the Scotch iron is obtained from it. the cockroach.

Blackboy

a name for the grass trees (xanthorrhea) of Australia yielding a gum or resin called blackboy resin or akaroid resin.

Black Forest

a great forest, part of the hercynia silva of the Roman period.

It is situated in Baden and Württemberg, near the source of the Danube.