Commentary on Almagesti minor
Text ‘(Prague, APH, L. XLVIII) Sint ab et ag nota, essent quoque per secundum corporum — sicque patet correlarium. Explicit Almagesti Ptolomey abreviatum Bernhardi Chorner quondam Iacobi de Tyrnavia.’
Content A commentary mainly on the Almagesti minor (C.1.3), with revised proofs and added material and references, including from the Almagest, Campanus of Novara’s De figura sectore, the Indians, Arzachel and Theodosius. The text begins with I.3, due to one missing folio in the only known MS and goes on up to II.34 (information Henry Zepeda).
Origin The only known MS was copied probably at the University of Prague c. 1410 by a single hand, perhaps that of Johannes Andree Schindel. The attribution ‘Bernhardi Chorneri quondam Iacobi de Tyrnavia [Trnava, Slovakia]’ is unclear.