Foligno, Biblioteca del Seminario MS. 346 (C. I. 2). 123 folios. Parchment. 120x167mm. 14th Century. 1. f50 Explicit ars alchimie. 2. f71 [Treatise by Arnold of Villa Nova, preceded by a note "Hic liber magno labore peractus est ob pauperum amorem".]