London: Longmans, Green, Reader, and Dyer, 1869. First Edition. Very Good. First edition, first printing. Bound in publisher's original ocher cloth stamped in blind, spine lettered in gilt. Very Good with soiling and darkening to cloth, light wear at corners and spine ends. Front and rear inner hinges at endsheets exposed. Former owner details written to half-title page. Pages toned, foxed at prelims and terminals. Binder's ticket to rear pastedown. An argument for equality between the sexes, which Mill derived from an earlier collaboration between him and his late wife.