Hans Jacob Thoman - Arithmetici. Erneuertes Hauß- und Kauffmännisches Rechen-Büchlein - 1765

Commercial Arithmetic Little Book from 1765 in German

Author
Hans Jacob Thoman

Title
Hanß Jacob Thomans / Arithmetic in Lindau: renewed house and commercial arithmetic book, seventh, greatly enlarged and improved edition. With high authority privilege.

Drucker
Jacob Otto, Lindau, 1765

Description
Extremely rare edition of this mathematical book, which offers a wealth of fundamental knowledge of arithmetic and mathematics.

The work is divided into six parts; starting with basic arithmetic, then moving on to fractions, calculations with fractional numbers and equations, and finally commercial arithmetic, which includes interest, discounts, cash discounts, as well as profit and loss calculations. Additionally, it covers the fundamentals of receiving and redeeming bills of exchange and promissory notes, and the calculation of precious metal exchange rates.
Conversions of coins, units of measurement for currency, grains, beverages, weights, distances, sizes, as well as the division of the year into seconds, complete the list.

Introductory with a engraved frontispiece with ribbons bearing the saying, 'By God's grace, early and late, in work - sweat, struggle, benefit, and price, at this place, here and there.'
In the center, a smaller title is flanked by two merchants, above which sit a squirrel, a rooster, and an owl. Below, there is a small view of Lindau Island.
The printing/publication date 1765 results from solving the puzzle on the back of the title.

Collation
14 unnumbered pages (including frontispiece, title, explanation, preface, and index), 332 numbered pages. Complete.

cover
Later parchment binding, original flyleaves – including the first flyleaf with an old handwritten calculation of the printing year. Three-sided red-splattered edges. The book block is firm and stable.
Dimensions: 17.0 x 11.0 x 3.0 cm.

state
In good condition. Strong print and sturdy handmade paper. Uniform and only lightly browned, with some light brown and finger stains in places. 44 pages at the bottom edge with a developing worm trail, partially encroaching into the text and only minimally affecting the text in some areas, otherwise mostly no loss of text. Page 221/222 with a tear at the top edge, without loss. Last page (page 332) with corner and edge tears with some text loss.

References
VD 18 15333469.

We hereby confirm the originality and proper provenance of the offered work. At the time of sale, it is free from third-party rights.

Information on shipping, customs, and export
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