Johannes de Sacrobosco

Editions of the 
Tractatus de Sphaera

Sacrobosco Project
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Image source: 
Biblioteca Histórica 
Marqués de Valdecilla
Universidad Complutense de Madrid
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Other images:
Title page   Colophon
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Opusculu[m] de sphera mu[n]di Joannis de sacro busto: cu[m] additionib[us]: & familiarissimo cõme[n]tario Petri Ciruelli Daroce[n]sis: nunc recenter correctis a suo autore: intersertis etiã egregijs questionib[us] dñi Petri de Aliaco.
Compluti [Alcala de Henares]: Michael de Eguia, 15 Dec. 1526. 

lxxiii leaves, 30 cm. (fol.)

Colophon: Fuit excussum hoc opusculum in Alma / Complutensi Vniuersitate. Anno Domini Millesimo quingentesimo vi- / gesimosexto. Die vero decimaquinta Decembris. Apud Michaelem de / Eguia. E regione Diui Eugenii cõmorantem: vbi venundatur. 

Ciruelo, Pedro, 1470-1560.
Ailly, Pierre d', 1350-1420?
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Locations:..
Library of Congress, QB41.S2 1526
New York Public Library – Humanities-Rare Bks & Mss - *KB+ 1526
University of Minnesota, James Ford Bell Library: 1526 fSa 
Yale University, Beinecke - Taylor 64
Hispanic Society of America, New York
John Carter Brown Library, Providence
Boston Public Library
University of Michigan
Universidade de Coimbra, UCBG R-54-7
Universidad Complutense de Madrid, BUC FLL Res. 11331
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Johannes de Sacrobosco - Editions of the Tractatus de Sphaera - home
Roberto de Andrade Martins - roberto.andrade.martins@gmail.com
Group of History, Theory of Science and Science Teaching, University of São Paulo (USP), Brazil - GHTC