A scheme for a course of chymistry / to be performed by Henry Pemberton.

  • Henry Pemberton
Date:
1731?]
Catalogue details

Licence: Public Domain Mark

Credit: A scheme for a course of chymistry / to be performed by Henry Pemberton. Source: Wellcome Collection.

    14/18 (page 12)
    their ores by charcoal: how lead, tin, and copper are feparated by pit-coal. Models fhewn of the feveral furnaces. How eflays are made, with the nature of the two kinds of flux-powders. Lecture XIV. The calcination of the metals. How lead, tin, copper, iron, and quick-filver are calcined by our fires; whence from iron crocus Martis aftringens, from quick-filver Mercurius praecipitatus per fe; from lead minium, litharge, and vitrum Saturni; from lead and tin together the powder, wherewith metals are polifhed, called putty, but not the putty of the glaziers, which is here alio occafionally defcribed: here the manner of glazing earthen ware; of what confifl the red, white, and black glazing: flint-glals defcribed. That all metals are calcined by the burning glafs, and the particular phe¬ nomena of that calcination enumerated. How calcined metals may be reftored. The caufe of calcination, and of luch reftitution. ' 4 Lectop XV. Of refining, feparating, and other pre¬ parations of metals. How filver is fepa¬ rated from lead, and how refined by that means; how this feparation is performed at the mines, how by the refiners, and how in eflays: occafionally how the refiners melt I