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pitate the sulphur; then wash the precipitate repeatedly with watertill it become tasteless.Decomposition. Part of the water is decomposed, and the oxygen andhydrogen thence evolved combine with the sulphur and lime andform bisulphuret of hydrogen, sulphuret of calcium, and sulphate oflime. The muriatic acid unites with the lime of this sulphurettedhydrosulphuret of lime, precipitates the sulphur, evolves sulphurettedhydrogen gas, and muriate of lime remains in solution. The preci-pitate thus formed is whiter than sublimed sulphur, because it con-tains water and some sulphate of lime, but these may be got rid ofby resublimation.Adulterated sometimes to the amount of two-thirds with sulphate of

lime.Medicinally, it is used as a laxative and diaphoretic, in doses of 5J to5iij, and is a very efficient, though mild preparation in haemorrhoids,rheumatism, catarrh, and cutaneous disorders. It usually makes itsway to the skin, and will blacken silver in the pocket after beingtaken internally; it also excites disagreeable flatulence.Externally, in form of ointment, it is almost, if not altogether, aspecific in scabies (psora~).

Sulphur Sublimatum. L. E. D. P. Sublimed Sulphur, or Flowersof Sulphur. Flares sulphuris. O. It is procured by heating sulphurto 500° to 600°, by which it vaporizes, and is condensed in appro-propriate receivers, in form of a fine powder, which is mixed with aportion of sulphuric acid.Medicinally it is used in the same manner as the last, being an excel-lent mild laxative. Dose 9j to 5j.

Sulphur Vivum. Horse Sulphur. Sulphur caballinum. O. It is theimpure residuum left in the vessel after preparing sublimed sulphur,. and is only used externally for cattle by veterinary surgeons.

Sulphurated Oil. See Oleum Sulphuratum.

Sulphurets are combinations of sulphur with metallic and other bases.See Antimonii, Hydrargyri, Potass.*:, &c.

Sulphuretum Ferri. D. Sulphuret of Iron. Heat a bar of iron ina powerful fire, excited by bellows, and rub it upon a roll of solidsulphur. Let the sulphuret of iron drop into water, and havingseparated it from the sulphur, dry it, and keep it in closely stoppedbottles. Dose v\s to ttij in a tumbler of water thrice a day.

Sumach. See Toxicodendri Folia.

Sulphuric Acid. See Acidum Sulphuhicum.

Super has nearly the same meaning as Per in chemical terms, signify-ing an excess, as superacetate of lead, supersulphate of potass, super-tartrate of potass, &c.