GLAUBER, Johann Rudolph.
De purgatorio philosophorum, oder Von dem Fegfewer der Weisen, ... Welches Fegfewer von den alten Philosophis Ysopaica genant worden: welches so viel, als Ars lavandi per ignem; oder eine Kunst durch Fewer zu waschen, zu sagen ist. ...
Amsterdam, Johannes I Janssonius van Waesberge & the widow of Elizaeus Weyerstraten, 1668. 8vo. Later sprinkled paper over boards. 70 pp.
€ 1,000
First edition, in the original German, of an account of the various ways to purify metals with the help of fire, written in the wake of Paracelsuss Coelum philosophorum. Like the souls in Purgatory, metals will be purified by fire: this was an essential step, because Glaubers tincture would not convert them to other metals unless they were pure.
With many contemporary marginal annotations and underlinings. In good condition. Gugel 23; Krivatsy 4779; STCN (3 copies); VD17, 1:641092M (5 copies).
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