Catalogue Entry: ALCH00034
'Practica Mariæ Prophetissæ in Artem Alchemicam' (early 1690s).
Bought at the Sotheby sale by Heffers for £8. Sent to Keynes on approval for £10.10s. on 17 August 1936, and on 7 September following Heffers advised Yahuda that it had already been sold (presumably to Keynes).
A dialogue between 'Aros' and 'Maria', the sister of Moses, in which she replies to his queries about acquiring alchemical wisdom. Concludes with the note 'Extat hoc opus in Theat Chem Vol 5 & Vol 6 p 479 [i.e. Lazarus Zetzner's Theatrum Chemicum (1659-61): it is in fact only in vol. 6] & Arte Aurif. vol. 1 et in Bibliotheca Gallica' [i.e. Bibliothèque des philosophes (1672-8): it is in vol. 1].
See H1608, H90-H91, H221 for the works cited as Newton's sources.