London: Chatto & Windus, Piccadilly, 1880. 1st edition (NCBEL III, 1070; Sadleir 1928; Wolff 5333). 3 volumes: , 359, [1 (blank)], 32 [12/79 publisher catalogue]; , 387, [1 (blank)]; , 397,  pp. Publisher's device at end of Volume III. Crown 8vo. Publisher's dark blue cloth bindings with black floral stamping to boards, and gilt stamping to spines. Chocolate eps. Volumes cocked, with shelfwear & a bit of rubbing to joint cloth. Vol I lacks ffep. Withal, a generally Very Good set. Item #47117
Moths one of Ouida's novels that deals "with contemporary social issues" and does so in a satiric fashion wherein "she describes the social hierarchy being eaten away by parasites and hypocrites." [Bloomsbury Guide to Women's Literature, p. 886]. The work was viewed as one of her better efforts from her middle period, and spawned a theatrical adaptation.
OCLC records just 2 holding institutions for this first edition: the British Library & NYU. NB. Since Sadeir had a copy, we also find the title at UCLA; and the Wolff copy is held by the HRC.
RBH shows this title only auctioned 3 times, the last in 1958.
Obviously, a somewhat uncommon triple decker from this prolific 19th C female author, especially in commerce.