Penn in Hand: Selected Manuscripts

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Lawrence J. Schoenberg Collection: LJS 289 - Algorismus
Algorismus [manuscript].
[Italy, between 1450 and 1475?]
Physical description:
98 leaves : parchment ; 113 x 90 (72 x 65) mm. bound to 120 x 105 mm.
Pedagogical treatise on commercial and practical arithmetic, with extensive use of arabic numerals, descriptions of operations such as multiplication and division, and particular attention to proportions (using the rule of three), money-changing (fiorini, bolognini, and ducati), and alloys of precious metals.
Ms. codex.
Title from text of preface (f. 2r).
Collation: Parchment, i + 98 + i; 1¹⁰ 2¹² 3¹⁰ 4-6¹² 7-9¹⁰; 1-98, contemporary foliation in ink, upper right recto. Catchwords on the last versos of gatherings 1-8.
Layout: Written in 18-20 long lines.
Script: Written in Italian commercial cursive script (mercantesca).
Decoration: Minimal decoration around the catchwords on the last verso of each gathering.
Binding: Contemporary (15th-century) blind-tooled leather, possibly Neapolitan; rebacked.
Origin: Written in Italy, probably in the third quarter of the 15th century.
Cite as:
LJS 289
Manuscript location:
Rare Book & Manuscript Library University of Pennsylvania LJS 289
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