Description of University of Pennsylvania Oversize Ms. Codex 827: De improbatione concentricorum et epicyclorum ... etc. University of Pennsylvania These images and the content of Kislak Center for Special Collections, Rare Books and Manuscripts Oversize Ms. Codex 827: De improbatione concentricorum et epicyclorum ... etc. are free of known copyright restrictions and in the public domain. See the Creative Commons Public Domain Mark page for usage details, http://creativecommons.org/publicdomain/mark/1.0/. Metadata is © and licensed under a Creative Commons Attribution License version 4.0 (CC-BY-4.0 https://creativecommons.org/licenses/by/4.0/legalcode. For a description of the terms of use see the Creative Commons Deed https://creativecommons.org/licenses/by/4.0/. Ms. codex. Collective title and author from title and author for Work 1 from Zacour-Hirsch. 3420 Walnut Street, Philadelphia, Pennsylvania 19104-6206. University of Pennsylvania Kislak Center for Special Collections, Rare Books and Manuscripts Oversize Ms. Codex 827 9931755613503681 http://www.worldcat.org/oclc/155859463 http://hdl.library.upenn.edu/1017/d/medren/3175561 An astronomical treatise by Heinrich von Langenstein and a treatise on astronomy and astrology variously attributed to Albertus Magnus or Roger Bacon. Latin De improbatione concentricorum et epicyclorum ... etc. Heinrich, von Langenstein, approximately 1325-1397 Albertus, Magnus, Saint, 1193?-1280 Bacon, Roger, 1214?-1294 former owner Voynich, Wilfred Michael, 1865-1930 1r De improbatione concentricorum et epicyclorum, f. 1r 15r Speculum philosophiae, f. 15r

parchment

 20 leaves : 271 x 198 (188 x 140) mm. bound to 278 x 203 mm Parchment, i (modern paper) + 20 + i (modern paper); 91-110; contemporary foliation in ink, upper right recto; [1-20]; modern foliation in pencil, upper right recto. Written in 2 columns of 43-47 lines. Illuminated initial in gold, red, and blue at the beginning of each work (f. 1r, 15r); numerous initials in red and blue; rubricated in red and blue. Illuminated initial, Initial C, f. 1r Diagram, f. 1r Diagram, f. 2r Diagram, f. 2v Diagram, f. 3v Diagram, f. 4r Diagram, f. 5r Diagram, f. 5v Diagram, f. 6v Diagram, f. 7r Diagram, f. 7v Diagram, f. 8r Diagram, f. 9v Diagram, f. 10r Diagram, f. 11r Diagram, f. 12r Diagram, f. 14v Illuminated initial, Initial O, f. 15r Manicule, f. 19r Drawing, Face, f. 19r

Modern boards.

Written in England after 1362 (date on f. 14v) in one hand (Zacour-Hirsch).

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