4to., disbound, pp. 48, with 2 folding plates. First edition of this rare early work by Euler, the Swiss mathematician known for his discoveries in infinitesimal calculus, graph theory, topography and analytic number theory. Water damage to lower corners of pp. 15-48; otherwise a good example with ample margins. For rebinding. Text in Latin.
EULER, Leonhard, Meditationes super problemate nautico, de implantatione malorum quae proxime accessere Ad praemium anno 1727. a Regia Scientiarum Academia promulgatum., Apud Claudium Jombert, 1728
DENNY, Henry, Monographia Anoplurorum Britanniae; or, an essay on the British species of parasitic insects belonging to the order Anoplura of Leach, with the modern divisions of the genera according to the views of Leach, Nitzsch, and Burmeister, with highly magnified figures of each species., Henry G. Bohn, 1842