Manuscript on paper, in two different hands, containing Joannes de Sacro Bosco's De sphaera mundi and Additiones (1r-22v) and Gherardo da Cremona's Theorica planetarum (23r-38v). First hand is unidentified; second hand, Jacobus de Milisapris, has copi...
Alternative Title:
Tractatus de spera de Iohannis de sacro busco. Theorica planetarum and Tractatus de sphaera / written by Jacobus de Milisapris de Porturraris at Padua ; finished "at 2 P.M. on 9 September 1467"