Purchased from Rosenbach, Oct. 1923. Contemporary marginal ms. annotations and readings marks. Contemporary ms. text on verso of leaf p10 and on [16] pages at end, including treatises on alchemy by Roger Bacon in the hand of Antonio de Spino (late 15th century). Vellum leaf with contemporary ms. text bound in at end. On inside of front cover, number "247" in circle and notes "Libri" and "vide Libri 247 1862". From the libraries of Sir Thomas Phillipps and Thomas Fenwick FitzRoy.