AM

35

mixing it witJi a portion of pearlash, lime, and stale urine. See

LlTMUS.

Arctii L.AVTM Semina et Radjx. E. D. Seeds and roots of Burdock,Arctium lappa. A sudorific and deobstruent in gout and rheuma-tism. The decoction, Jij in Ojss of water, may be used as commondrink.Akeca. P. The fruit of the Areca catechu: an astringent and tonic

masticatory used in the East.Argenti Nitras. L. E. D. P. Nitrate of Silver. Lunar caustic. O.Prepared by dissolving, by means of a sand bath, 3J of silver in §j ofnitric acid, diluted with Jij of distilled water, and increasing theheat till the nitrate of silver dry. It is then fused in a crucible,over a gentle fire, and poured into moulds.Adulterated with copper, which may be known by its solution becoming

blue on being supersaturated with ammonia.Incompatible with fixed alkalies, or alkaline earths, muriatic, sul-phuric, or tartaric acids, arsenic, hydro-sulphurets, or astringentinfusions.Medicinally it is used as an escharotic and external stimulant in stric-tures, fungous sores, tinea capitis, and ringworm, prolapsus iridis,&c, and as an injection or wash, (gr. ij, or 5J, to Jj of water) infistulas, venereal sores, scrofulous ulcers, &c. Internally as an anti-spasmodic, in the dose of gr. \ to gr. ij in pills, or in solution forepilepsy, hysteria, chorea, &c, and as a tonic in dyspepsia. Some-times it turns the patient's skin black.It is also used for making hair dyes, and permanent ink for marking

linen.Poisonous in large doses, producing inflammation and swelling of thethroat and stomach, with excruciating pain, thirst, cramp, convul-sions, and death.Antidotes. The best is a strong solution of common salt in water, atea-cupful every three minutes, after which bland fluids, such asbarley water, along with purgatives.Tests. It may be discovered in the stomach by giving a white precipi-tate with chlorate of soda, and a yellow with phosphate of soda.Argentine Flowers of Antimony. The antimonious acid or deut-

oxide of antimony.Argentum. L. E. D. P. Silver. Not used in medicine except in the

form of leaf silver to gild pills, and to prepare the nitrate.Argil. O. Clay or alumina, or argillaceous earth.Argol, or Argal. The deposit of red and white wines, consisting of

impure supertartrate of potass.Ari P.vbix Recens. D. The recent buib of the Arum maculalum, or

i) 9