(Euler, Leonhard). - [St. Petersburg Academy of Sciences]. Acta Academiae Scientiarum Petropolitanae pro anno MDCCLXXVII. Pars posterior.

St. Petersburg, typis Academiae Scientiarum, 1780.

4to. Part 2 (of 2) only. VIII, 84, 395 pp. With engraved title vignette, 1 folding table, and 18 folding engravings and mezzotints. Contemporary calf with 2 giltstamped labels to spine. All edges red.

 1,500.00

Contains seven first printings of treatises by Leonhard Euler: De integratione formulae.

De valore formulae integralis.

Novae demonstrationes circa resolutionem numerorum in quadrata.

Considerationes circa brachystochronas.

Sur l’effet de la refraction dans les observations terrestres.

De motu oscillatorio penduli cuiuscunque, dum arcus datae amplitudinis absolvit.

De theoria lunae ad maiorem perfectionis gradum evehenda.

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