Calandri, Filippo, active 15th century. Morgiani, Lorenzo de', active 1490-1500, printer. Petri, Johannes, 1441-1511, printer. Perrins, Charles William Dyson, 1864-1958, former owner. Lessing J. Rosenwald Collection (Library of Congress) DLC text Incunabula Italy Florence 1492. rbgenr Florence, Lorenzo Morgiani and Johannes Petri, 1 Jan. 1491/92. ita Calandri's Arithmetica is the first Italian arithmetic book to contain illustrations that illuminate mathematical problems, as well as being the first work to discuss long division. The illustrations depicting the hand counting technique are cleverly designed and convey motion. The remainder of the woodcuts in this volume illustrate the practical application of mathematical problems, especially those of use to builders, merchants, and farmers. Library of Congress. Lessing J. Rosenwald collection, Goff, F.R. Incunabula in American libraries, Reichling, D. Appendices ad Hainii-Copingeri Repertorium bibliographicum, Catalogue of books printed in the XVth century now in the British Museum, Gesamtkatalog der Wiegendrucke LC copy: most signatures cropped. Provenance: C.W. Dyson Perrins (bookplate). Arithmetic--Early works to 1900. Italy Florence. Also available in digital form on the Library of Congress Web site. http://hdl.loc.gov/loc.rbc/Rosenwald.0266.1