British Library MS. Sloane 2764. Paper. Quarto. 223 folios. 16th and 17th Centuries. 10. Alchemical verses, and verses upon a portrait and other subjects- the authors being unknown. [In French]. f.11. 120. 'Secretum Alchymicum, incerti auctoris, ec liberatitate Nicolai Barnauldi Delfinatis Galli'. f.108. Begins: 'Quid faciat lapidem, claruis respondit Apollo'. 130. 'Incerti carmen continens totum mysterium Lapidis Philosophi'. f.118. Idem de quo fit mentio supra ad art. 120. 190. Clavis in libros Stenographicos Johannis Trithemii, Abbatis Spanheimensis: ab ipso auctore conscripta. f.198. Printed quarto Darmstad, 1621.