Erste Ausgabe. – Gjertsen, Newton Handbook, 14. Gray 194. Wallis 194. Honeyman 71. Graesse I, 75. Babson 145 (ohne Frontispiz): "This first successful popularization of Newton in six dialogues with Marchioness di E… was written by an Italian philosopher and critic, a friend of Frederick the Great and Voltaire. It was translated into English and French, but was unknown to Riccardi. The last dialogue treats of gravitation." – "The first five dialogues (4 and 5) on the ‘Newtonian system of Optics’ … The discussion throughout is interspersed with numerous digressions on such subjects as the nature of English verse" (Gjertsen). – Fliegendes Blatt mit Numerierung, etw. braunfleckig, ein wenig gebräunt.
First edition. – Fly-leaf with numbering, a little brown-stained, somewhat browned. – Contemporary half calf with spine label (bottom turn-in damaged, scratched and scuffed).