An elaborate allegorical engraving depicting various scientific instruments and putti (cherubs). In the center, a large shield features the royal sun emblem of Louis XIV. Putti are engaged in activities related to astronomy—using a telescope and a large celestial globe—geography, and physics, where a pendulum clock and laboratory equipment are visible. A banner at the top reads "He discovered and perfected" original Latin: "INVENIT ET PERFECIT".

TO THE GENTLEMEN

OF

THE ROYAL ACADEMY

OF SCIENCES.

Gentlemen,

THE WORK which I have the honor of presenting to you, belongs to you by such a just title, that to bring it to light under