Pharmacologia : or the history of medicinal substances, with a view to establish the art of prescribing and of composing extemporaneous formulae upon fixed and scientific principles; illustrated by formulae, in which the intention of each element is designated by key letters / by John Ayrton Paris.

Date:
1820
Catalogue details

Licence: Public Domain Mark

Credit: Pharmacologia : or the history of medicinal substances, with a view to establish the art of prescribing and of composing extemporaneous formulae upon fixed and scientific principles; illustrated by formulae, in which the intention of each element is designated by key letters / by John Ayrton Paris. Source: Wellcome Collection.

Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.

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    with justice: when it is administered, the .form of powder is preferred, and in doses from 9j to 5j. ZINCI OXYDUM. L.E.D. Oxide of Zinc. This is occasionally used internally, as a tonic, and may be exhibited in the form of pill. It is how- ever principally employed externally, as a mild, but efficient astringent; viz. Ung: Zinei. Adultera- tion. Dr. Roloffi, of Magdeburgh, has lately dis- covered the casual presence of Arsenic in this oxide ; by boiling the substance in distilled water, and assay- ing the solution with the amnioniaco-nitrate of silver, its presence may be instantly recognised ; Chalk may be detected by sulphuric acid, exciting an efferves- cence ; and White Lead, by its forming an insoluble sulphate of lead. It ought to be volatile. h;dJdgo‘io bAjoq* omoa-ni Icbitoned y i£>/ : Jmdurnite Jdsiii ndye odt noun b&Tlsemg .nim, ZINCI SULPHAS. L.E.D. Sulphate of Zine, olim, fj eU III dll.) (l..d . White Vitriol. Qualities. Forvi, crystals, which are four-sided prisms, terminated by four-sided pyramids; they are slightly efflorescent; Taste, styptic, metallic, and slightly acidulous. Chemical Composition. One proportional of oxide* and one proportional of acid; its crystals contain seven proportionals of water. Solubilitv. It is soluble in-2’5 times its weight of water at 60°, and in less than its own weight of boiling water, but is quite insoluble in alcohol. In- compatible Substances. AIkalies ; earths ; hydro- sufphurets; astringent vegetable infusions; Milk. Med. Uses. Tonic, astringent, and, in large doses