[DEVONSHIRE, Georgina Cavendish, Duchess of (1757-1806)]. The Sylph; A Novel. Dublin: for W. Wilson, T. Walker, C. Jenkin [and others], 1784. 12° (173 x 104mm). Half-title. (Light marginal soiling, final text leaf a little creased along gutter, lacking endpaper). Contemporary calf, preserved in a modern cloth box (head of spine chipped, spine with skilful repairs). First published in 1779.