| Description | 'Libro varissimo del Conte Guido di materia fisiche e mathematiche' A volume of alchemical tracts. Items 7, 9, 18, part of 19 and 23 are all in one hand; items 11 to 15 are in another; the remainder are in various hands. Most of the items appear to date from the early or middle 17th century, to judge by the hands, though the matter is in most cases probably much older. |