56

BRIO

Bougies are usually made from the thickness of a knitting-needle tothat of a writing quill, or even more. Cut a piece of old linen raginto slips., eight or ten inches long, and from half an inch to an inch,or more, in breadth. Upon these spread a plaster, and roll themneatly up, with the plaster side outermost, on a hot glazed tile, andform them into proper shape.B. Bell's Bougies are made in the same way, by melting in one vesselgiv of litharge plaster, and in another ^iij of olive oil, and §jss ofyellow wax, mixing them for use.P/enck's Bougies are made of catgut; but as they are apt to swell after

being introduced, they are very objectionable.Elastic Gum Bougies are erroneously named from a false notionthat they are made of elastic gum, or Indian-rubber. They arereally prepared by boiling linseed oil for a long time over a slowfire, and with this varnishing the cotton, silk, or linen, employed asa basis.Smyth's Flexible Metallic Bougies are liable to break, and are therefore

dangerous.Daran's Medicated Bougies are made of such materials as shall dissolvein the urethra after being introduced. They are now disused ex-cept by empirics. Armed bougies are of this class, being preparedby potassa, fusa, or by nitrate of silver.Boyle's Depilatory. See Depilatory.

Boyle's Fuming Liquor is the hydroguretted sulphuret of ammonia.Bran. See Farina.

Brass. A compound metal containing four parts of copper to one of zinc.Breeches Ball, is prepared by mixing ftj of Bath brick, Ibij ofpipe clay, jiv of pumice stone in powder, and ~vj of ox gall, andcolouring the mixture to the shade required, with ochre, umber,rose-pink, &c.Brimstone is native sulphur, found near volcanoes, or the substancewhich is prepared from the native sulphurets of copper or iron,called pyrites. Roll brimstone is this substance, purified, and castin moulds. See Sulphur.Brionia Dioica. P. White Bryony, a native climbing plant, whoseroot is acrid, bitter, diuretic, and a drastic purgative. It containsbrionine.Medicinal]}] it is given in doses of gr. xv to 9j or more of the powder,or gr. x to gr. xv of the extract, in dropsy, asthma, mania, epilepsy,and rheumatism. It is also given in form of infusion.Externally it is rubefacient and resolvent, the pulp being applied in

cataplasms, in cedema, and ecchymoses.Poisonous in large doses, producing severe griping and hypercatharsis,