Libellus ysagogicus Abdilazi

[82] leaves : 21 cm. (4to) Translation of: Mudkhal ilá ṣināʻat aḥkām al-nujūm; includes commentary by Johannes de Saxonia, edited by Bartholomaeus Alten A reprint of the 1485 edition by Erhard Ratdolt. Cf. BM 15th cent Title from caption on leaf aa2r Caption title on leaf A1r reads: Comentum Iohannis de Saxonia super textu Alchabicii Imprint from Goff Colophon exists in variant settings: "Impressum uenetiis p[er] Ioha[n]ne[m] & Gregoriu[m] deforliuio fratres a[n]no salutis. Mcccclxxxxi in die. xxvi. Iulii." or "Imp[re]ssum uenetiis p[er] Ioa[n]nem & Gregoriu[m] de forliuio fr[atr]em a[n]no salutis .M.cccclxxxxi. i[n] die. xxvi. Iulii." Signatures: aa-bb⁸ cc¹⁰ A-G⁸ Printed on Chancery size paper, 38 lines to a full page; area of text: 156 x 111 mm. With initial spaces with guide-letters; without foliation and catchwords. Register at end Includes 4 diagrammatic woodcut illustrations NLM copy, leaf size: 208 x 155 mm NLM copy, colophon reads: "Impressum uenetiis p[er] Ioha[n]ne[m] & Gregoriu[m] deforliuio fratres a[n]no salutis. Mcccclxxxxi in die. xxvi. Iulii." NLM copy, not rubricated NLM copy, foliated in pencil, 52-133 Microfilm. [Bethesda, Md.] : National Library of Medicine, 1 microfilm reel : negative ; 35 mm Purchase ; F. Thomas Heller NLM copy, bound in paper fragment from early printed book in German containing a portion of Psalms 103 and 104, rubricated in alternating blue and red ink Condition reviewed 20171121 inspection and duplication of camera master microfilm deferred 20041229 digitized. 2018