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§
EUCLID. CHALES, Michel (1793–1880).
Les trois livres de porisms d’Euclide, rétablis
pour la première fois, d’après la notice et les lemmes de Pappus, et
conformément au sentiment de R. Simson sur la forme des énoncés de ces
propositions.
Paris:
Mallet-Bachelier, 1860.
Collation: 8vo, pp. ix [1] 324,
wood-engraved diagrams in the text.
Condition: 215 x 130mm. Foxed, some
pencil annotation.
Binding: Contemporary morocco backed
boards, marbled end-papers.
References: Riccardi Euclid p.
506.
Price: £300
First Chales edition.
¶ An attempt to reconstruct the lost
book of Porisms of Euclid, which ‘Chales felt were essentially the
equations of curves and that many of the results utilized the concept of the
cross ratio. [The work] is not accepted by contemporary scholars.’ (Elaine
Koppelman, DSB 3:214a)
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