8vo, pp. xvi, 186 (i.e. 188), I-IV, 187-190, 193-380; with four folding engraved plates and many tables in the text; occasional light foxing, but a very good copy in contemporary carta rustica; ink purchase note dated July 1792 to the front free end-paper, nineteenth-century armorial bookplate to the front paste-down, faded ink titling to the spine (in the same hand as the 1792 inscription, evidence of a later library paper shelfmark removed from the foot of the spine.
US $1616 €1315
Much enlarged second edition of a rare work on applied mathematics (the first edition, 1754, only amounted to xii + 255 and two plates). Commercial arithmetic is one of the three main fields with which the author engages: business, trade and currency exchange examples prevail in the 82 practical illustrations of problems, with the significant new addition of a section devoted to the rule of three applied to companies. A second major area treated, and much amplified in this edition, is the construction of sundials of various kinds, illustrated with plates. The third field of interest is measurements: of lengths, weights and volumes, with an interesting chapter on the measurement of metal coins through water displacement.
Riccardi II, 130-131 (s.v. Marzagaglia). Beside a handful of copies in Italy, OCLC finds 2 copies in the UK (Cambridge and Oxford) and 1 in the US (Stanford).
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[MILL, John Stuart, witness].
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