La theorie et la pratique des nombres. Methodiquement proposes dans l’usage des financiers.

Paris, [Jean Bessin] for the author, 1644.

4to, pp. [8], 292; decorative headpieces and initials; lightly toned with occasional browning, a little unobtrusive dampstaining to first and last leaves, small stain to quire B, a couple of marginal annotations, marginal calculation to p.177; a very good copy in early eighteenth-century sprinkled calf, double gilt fillet, panelled spine gilt with central pointillé floriate ornaments; expertly rebacked and corners renewed; 18th C ownership inscriptions of Jean Moreau to the pastedowns.

£6000

Approximately:
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First edition. A rare practical mercantile arithmetic handbook for financiers and tax farmers. The work, beginning with the mathematical ‘alphabet’ of 10 numbers, covers basic arithmetic, as well as more complicated quadratic roots, rules, discounts, change and exchange, all illustrated with numerous examples.

The Savary’s were an important noble mercantile family during the 17th and 18th centuries. Jean’s cousin, Jacques Savary (1622-1690), brought the family name into wider prominence in 1675 with the publication of Le parfait négociant…, which proved extremely popular, the final edition being printed in 1800. His son Jacques Savary des Brulons (1657-1716) began the Dictionnaire universel de commerce, d’histoire naturelle, d’arts et metiers, in 1686 but the work was completed after his death by his elder brother the Abbé Louis Philémon Savary (1654-1727) in 1723. The Dictionnaire… was the first commercial dictionary ever produced and further cemented the Savary’s as experts in mercantile and commercial affairs.

Rare, OCLC finds only two copies, both in France.

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