CLAVIUS, Christophorus. Aritmetica prattica... tradotta da Latino in Italiano dal Signor Lorenzo Castellano Patritio Romano. Roma, Domenico Basa, 1586.

Small 8vo, mm. 150x100; Binding of the XVIIth century in full vellum, marbled inside cover, red edges; pp. 286, [18]. Jesuitic device on Titlepage and at the end, woodcut Initials and ornaments. Note of ancient owner at the end paper “Ex Libris Petri Robecchi Papiensis”. On the second end paper leaf long note in Latin.

Rare first edition in Italian. Valuable compendium of elementary arithmetic of the German Jesuit Christoph Klau, a professor of mathematics at the Jesuit College in Rome; the first Latin edition appeared, increasingly for the types of Basa, in 1583.

Smith: “Clavius was an excellent teacher of mathematics, and his textbooks were models of good arrangement. This work is an attempt at a practical arithmetic... It was too scholarly to be popular in the schools under the mercantile influence, but it was influential in the classical schools.” Zeitlinger, “rare“.Exemplary belonged to Pietro Robecchi, a member of the famous family of Pavia. Smith, Rara Arithmetica, p. 378; Zeitlinger, n. 6936; Sommervogel, 1215, n. 4. Slight sign of wormhole on the last leaves, sign of dampstain, good copy. THE LOT IS OFFERED WITH A VALID EXPORT LICENCE