Layout: Written in 50 long lines; frame-ruled in lead. Illegible note with the date 1440 (f. 63v). Title from title page (front flyleaf recto). Foliation: Parchment, ii + 64 + i; [1-64]; modern foliation in pencil, upper right recto. Ms. codex. Script: Written in a Gothic script by several hands. Decoration: Decorated initial in red and blue (f. 1r); decorative ascenders and descenders added by a later hand beginning at the end of Book 5 (f. 31v), some with red ink (f. 33v-34r); trigonometric and spherical trigonometric diagrams throughout, most commonly in the margins; occasionally the text is shaped to accommodate a larger diagram (for example, f. 23v); replacement strips for... Binding: 17th-century vellum (Zacour-Hirsch). Origin: Probably written in France, but possibly written in Spain, ca. 1300 (Zacour-Hirsch Catalogue) or ca. 1250-1300 (Thomas R. Adams). Incipit: Scientia species habet quarum melior post scientiam fidei. Contemporary and near-contemporary marginal notes in several hands throughout. Explicit: ... i[n] duo media s[ed] q[uod] e[st] i[n] figura prima. Purchased, 1949. Formerly owned by Wilfred M. Voynich, 1920 (Thomas R. Adams). Formerly owned by Don A. Canovas del Castillo (bookplate, inside upper cover).
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