. . . . . . . . . . . "Early works" . . . "Algorismus, etc" . "Manuscript on parchment and paper of 1) Johannes de Sacro Bosco, Algorismus. 2) Jordanus Rufus, Medecina equorum. 3) Pseudo-Aristotle, Secretum secretorum. 4) William Falconer, Falconibus." . . . "Manuscripts, Medieval" . . . . . . "Medieval and Renaissance Manuscripts in Beinecke Library." . . . .