4 volumes in 2, 12mo (159 x 98 mm). Half-titles to vols. I and III, titles printed in red and black, 5 engraved plates by Le Grand, de Longueil and Pasquier after Eisen. (Lacking half-titles Vols.II & IV.) Contemporary mottled calf, spines gilt, tan morocco lettering-pieces gilt, edges stained red (some light wear, chipping with losses to lettering-pieces). 

Lyon edition, issue without the "Privilegie" in Vol.I, published by Bruyset, reproducing the plates designed by Eisen for the Paris edition of the same year.  Rousseau's treatise on education and the nature of man enraged the French parliament, who issued an order for his arrest, and he spent several years as a fugitive. McEachern 3B.