First edition, illustrated with an allegorical frontispiece by Dubois and 21 engraved plates by Azélie Hubert after Julie Ribault, depicting blind individuals engaged in various activities and the tools used for their education. On the verso of the front free endpaper, a manuscript note referencing the life of Saint Jerome by Colombey, concerning the life of a blind philosopher.
Pastiche Bradel-style binding in waxed, speckled beige paper, typical of the period. Contemporary brown sheepskin title label. Untrimmed copy, with full margins. From p. 190 onward, a faint angular water stain appears and continues through to p. 204; otherwise, a clean and bright copy.