Amsterdam: Chez Marc Michel Rey, 1755. First Edition of Rousseau's Early Work on Equality ROUSSEAU, Jean[-]Ja[c]ques. Discours sur l'origine et les fondemens de l'inegalité parmi les hommes. Amsterdam: Chez Marc Michel Rey, 1755. First (original) edition, distinguishable from the counterfeit editions by the signatures on frontispiece and the spelling, "Jaques,".....
Amsterdam: Chez Jean Néaulme, 1762. Aamsterdam [i.e. Paris]: Chez Jean Néaulme, 1762. First edition, twelvemo issue (priority between this and the octavo is still subject to discussion). Four twelvemo volumes (6 1/2 x 3 7/8 inches; 164 x 100 mm). [2], viii, [2], 466; [4], 407, [1, blank]; [4], 357.....
Amsterdam: Chez Marc Michel Rey, 1762. The Authorized Issue of the Scarce First Edition of One of the Most Important Works of Philosophy ROUSSEAU, J[ean-] J[acques]. Principes du droit politique. Par J.J. Rousseau, citoyen de Geneve. Amsterdam: Chez Marc Michel Rey, 1762. First edition, second issue, approved by Rousseau, with.....