54,

BOLU

recommends clothes dipped in boiling water, or boiling water in abladder, to be applied as an immediate blister, in cases of emergency.See Cantharides; Empl. Vesicator, and Cehatum Sabine.

Blood Root. See Sanguinaria.

Blue. See Indigo, Smalt, Prussian Blue, and Stone Blue, &c.

Blue Eye-Water. See Liq. Cupk. Ammon.

Blue Ointment, and Blue Pill. See Unguentum Hydrargyri, andPilulic Hydrargyri.

Blue Stone. See Cupri Sulphas.

Boerhaave's Astringent Powder for the ague, is prepared bymixing equal parts of alum, nutmeg, and Armenian bole.

Boerhaave's Red Pill, is prepared by mixing into a mass, with crumbsof bread, or mucilage, a portion of the red sulphuret of mercury,and dividing it into pills.

Bole. A genus of earths, of which there are several species, and ofwhich Bolus Armknite, P. Armenian bole, is the chief. It isastringent and desiccative, but is mostly used to colour ointments,such as the sulphur ointment. The boles are of a red or yellowishcolour.Adulterated frequently with inferior materials. They should be chosenof a fine clear colour, particularly when they are to be used forpaints, or for colouring medical preparations.

Boletic Acid was discovered by M. Braconnot in the juice of theBoletus pseudo-igniarius. See Ann. Phil. vol. ii.

Boletus Igniarius. E. Agaric of the oak. The B. igniarius is veryhard, somewhat brittle, and useless as a styptic, this species havingbeen confounded with the next.

Boletus Fomentarius is distinguished from the preceding by thepileus being subtriquetrous, obsolctely banded, cinereous brown, andthe pores being at first whitish and afterwards subferruginous. Itis from this and not from the B. igniarius- that the celebrated stypticis procured. (Baron de Beauv»is.) See Amadou.

Bolus. A form in which medicines are prepared, similar to that ofpill, but larger, and usually as soft as dough, so as to slip easilydown the gullet. It is more used in hospital than in privatepractice; as it is a cheap and easy way of preparing heavv medicineswhich cannot be given in the liquid form, such as calomel, &c.

Bolus Anodynus. Anodyne Bolus. Take gr. iv of genuine James's

powder, gr. iij of pulverised camphor, gr. x of nitrate of potass in

powder, gr. vij of extract of hyociamus, and enough of conserve of

roses to make a bolus.

Medicinally in cerebral affections, to be taken at night. (Dr. Copland.)

Bolus Arnicze. Take gr. iv each of the iiowers of Arnica montana in