Cambridge, Gonville and Caius College MS. 413 [C.M.A. 1154]
16+75+36+36 folios. Vellum. Various formats. 12th and 15th Century.

III. 14th and 15th Cent.
2. f2 [Alchemical tract - Liber Aureus?]
In nomine d. n. I. C. ad instanciam multorum circa hanc artem studere uolencium quibus deficit copia librorum hic libellus edatur.
3. f22 Tractatus de Azuro.
4. f28 [Chemical recipes.]
IV. 15th Cent.
1. f1-31 Secretum Philosophorum. Iste liber quem pre manibus habemus vocatur secretum philosophorum.
[Contains a number of roughly drawn diagrams of chemical apparatus.]