Imprint from colophon.
Initial spaces; illuminated border on p. [1] and [3].
Reproduction of original in: Biblioteca Nazionale Centrale di Firenze -- Incunabula.
Rubricated text; initials.
Signatures: not signed.
Title from first lines of text.
Variously attributed to St. Bonaventure and Johannes de Caulibus.
Electronic reproduction. Ann Arbor, Mich. : ProQuest, 2012 Mode of access: World Wide Web. Available to subscribing institutions.