2. (Dr Heyne.) Copper, 8 parts; lead, 2 parts; tin, 1 part; melted together, as before. For use, the resulting alloy is remelted, and to every 3 parts of it 16 parts of zinc are added.

Prop., &c. Colour between that of pewter and zinc; does not corrode by exposure to air or damp; yields little to the hammer, and can only be broken by extreme violence. It possesses a convenient degree of fusibility, above that of zinc and tin, but much lower than that of copper. For the turner it is usually cast in moulds of baked clay; but otherwise in moulds of iron or other hard metal. The beautiful black colour which the finished articles possess is imparted by dipping them into a solution of sal-ammoniac, saltpetre, sea-salt, and blue vitriol. See Brass, Bronze, Pewter, &c.

BIDET′ (bĭd-ĕt′; -ā′—Fr.). An article of bedroom furniture conveniently formed for laving the lower part of the body. Besides the value of its use as an instrument of personal cleanliness and health, it offers a ready means of medicating the parts, often highly serviceable in piles, prolapsus, affections of the scrotum and prostate gland, strangury, ischuria, suppressed or difficult menstruation, &c. See Ablution, Baths, &c.

BIELEFELDER TROPFEN—BIELEFIELDER DROPS (Bansi). A spirituous extract of wormwood, unripe oranges, rhubarb, cascarilla, cloves, and gentian. (Hager.)

BIEN′NIAL (bī-ĕn′-y′ăl). Syn. Bien′nis, L.; Biennal, Bisannuel, De deux ans, Fr.; Zweijährig, Ger. Occurring once in, or lasting, two years. In botany and gardening, applied to plants that do not produce flowers and seed until the second year or season of their growth, and which then die; subst., a biennial plant.

The existence of the biennials, like that of the annuals, may be prolonged by art; indeed, many of them, by carefully removing the flowers ere the seed-vessels begin to form, may be made to bloom a second season, and even for several seasons following, like perennials. See Annuals, Flowers, Plants, &c.

BIFF′IN. A baked apple, flattened by pressure.

Prep. The apples are placed in a cool oven 6 or 7 times in succession, and flattened each time by gentle pressure, gradually applied, as soon as they are soft enough to bear it; after which they are taken out, and as soon as cold put on clean dishes or glass plates. The sour or tart variety of apples is the best for baking. If the process be well managed, the appearance of the prepared fruit is very rich and the flavour delicious.

BIL′BERRY. The whortleberry.

Bilberry, Bear’s. Uva ursi.