1. The flattering comments “Iohannis de Monteregio, Germanorum decoris, etatis nostre astonomorum principis, Ephemerides” appear in Venetian editions of the 1490s and also in the title that a fifteenth-century scribe gave to Kraków, Bibliotheka Jagellionica, BJ 2729 (BB XXIII 5); see Zinner Ernst, Leben und Wirken des Joh. Müller von Königsberg genannt Regiomontanus, 2nd edn (Osnabrück, 1968), 303; and Wisłocki Władyslaw (ed.), Catalogus codicum manuscriptorum bibliothecae universitatis jagellonicae cracoviensis (2 vols, Cracow, 1877–81), ii, 643.
2. Regiomontanus's Concentric-Sphere Models for the Sun and Moon
3. To Save the Phenomena