Algorismus, etcSacro Bosco, Joannes de, fl. 1230[between 1300 and 1450]latManuscript on parchment and paper of 1) Johannes de Sacro Bosco, Algorismus. 2) Jordanus Rufus, Medecina equorum. 3) Pseudo-Aristotle, Secretum secretorum. 4) William Falconer, FalconibusIn Latin, German and French.Script: multiple hands writing in multiple scripts.Binding: S. XV limp parchment binding with leather spine stiffener and visible sewing and flap. The parchment is from an erased music manuscript. Remnants of a paper title label on the spine (text lost).