Notes: | Title from incipit on p. [1]. Colophon reads: Explicit theorica planeta[rum] Magistri Gerardi cremone[n]sis. Viri clarissimi. Emendata [per] exellentissimum astronomu[m] Magistrum Petru[m] bonu[m] auogarium Ferrariensem. Impressi andreas hoc opus: cui Francia nome[n] Tradidit: At ciuis Ferrariensis ego. Herculeo felix Ferraria tuta manebat numine: perfectus cum liber iste fuit: M.CCCC.LXXII. The authorship of the Theorica planetarum is uncertain and variously assigned to the 13th-century Cremona astrologer Gherardo da Sabbioneta or to Gerardus Cremonensis who died in 1187: see Bod-inc, J-180. With initial spaces; without foliation, catchwords, signatures. Initial spaces filled. Reproduction of original in: Biblioteca Nazionale Centrale di Firenze -- Incunabula. Bound with: Ioannis de Sacrobosco anglici v.c. spaera mondi feliciter incipit. [Ferrara : Andreas Belfortis, 1472]. Electronic reproduction. Ann Arbor, Mich. : ProQuest, 2010 Mode of access: World Wide Web. Available to subscribing institutions.
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