Quesiti et inventioni diverse, di novo restampati con una gionta al sesto libro, nella quale si mostra duoi modi de redur una Citta inespugnabile. La Divisione et continentia di tutta l'opra nel seguente soglio si trouara notata by TARTAGLIA, Niccolo - 1554

(Venetia): Appresso de L'Auttore (Per Nicolo de Bascarini, ad instantia & requisitione, & a proprie spese de Nicolo Tartaglia autore), 1554. Second edition (first published in 1546). Small 4to. 128 leaves [numbered recto only]. Large woodcut portriat of the author on the title page, 40 woodcut illustrations in the text, numerous diagrams, historiated initials, additional strip of paper bearing a repeat illustration pasted to fore-edge of leaf S3r as in all copies of this edition. Text in Italian. Cockle 660 included in the artillery section). BM/STC Italian, p. 658. Norman sale 202 (for the first edition): "Presents Tartaglia's own research on third-degree equations, his most important mathematical accomplishment." Some light foxing, but a very good copy. Later patterned boards (spine completely taped over), edges sprinkled red. (#3791). Tartaglia (1499-1557) was an Italian mathematician who pioneered work on ballistics, the subject of the first two books of this work; the third concerns gunpowder, the fourth military formations, and the fifth on the geometer's compass. The sixth book includes an addendum concerning fortification that first appears in this edition, the seventh and eighth deal with mechanics, and the ninth concerns problems in arithmetic.