Oeuvres

The most complete collective edition ever published, expanded, reorganized and corrected by the author himself as he explains in the Notice on this new edition. This edition therefore contains works not yet published. Maupertuis specifies that it is a selection of his best works. Title pages in red and black. This edition would be reprinted in 1768 by the same publisher. A frontispiece portrait painted by Tournière and engraved by Dallé representing the author in his travel attire for Lapland. A map of the meridian arc in volume II. Numerous mathematical diagrams in volume IV.

Contemporary full marbled brown sheep bindings. Raised band spines with ornament. Red morocco title labels and volume labels. Headcaps worn, very worn at head. Title label of volume I partly lacking. Joints of volume II partly narrowly cracked. 10 corners bumped. Bookplates scraped from pastedowns.

Details of the works: Volume I: Essay on cosmology. Discourse on the different figures of the stars. Essay on moral philosophy. Philosophical reflections on the origin of languages. Volume II: Physical Venus. System of nature. Letters. Letter on the progress of sciences. Volume III: Elements of geography. Account of the voyage made to the polar circle. Account of a voyage to the depths of Lapland. Letter on the comet of 1742. Academic discourses. Dissertation on the different means men have used to express their ideas. Volume IV: Harmony of the different laws of nature. Nautical astronomy. Discourse on the parallax of the moon. Operations to determine the figure of the earth...

An illustrious scientist of the French Enlightenment, and a divergent mind compared to the prevailing discourse of French science, Maupertuis's sagacity was exercised in several scientific fields: natural sciences (his hypotheses are very close to natural selection and transformism), biology and genetics of which he was a shrewd precursor, astronomy, with the adoption of Newtonian principles including universal attraction against Descartes's theory of vortices prevalent in France, mathematics, with the principle of least action of which he was one of the first discoverers, cosmology where his voyage to Lapland and the pole proved him right against Cassini (the earth being indeed flatter at the poles)...