Rome: Tipografia delle Belle Arti, 1857. First. hardcover. With 2 facsimiles and numerous mathematical diagrams in the text and on margins. Folio, contemporary 1/2 vellum (darkened; paper spine label chipped). Roma: Tipografia delle Belle Arti, 1857. First edition. A very good(+) solid copy, printed on beautiful paper, with wide, untrimmed margins.
The seven unpublished works in this volume are valuable in connection with the early history of arithmetic in Italy. There is a group of mostly historical lectures on arithmetic, historico- scientific notes on the origins of modern arithmetic and algebra. Cossali (1748-1815) taught both physics and astronomy at the University of Parma.