Vol. 1 is "The second edition" published 3 June 1776; vols. 2-3 published 1781 (vol. 2 without the portrait after Reynolds); vols. 4-6 published 1788 by A. Strahan and T. Cadell.
Each volume preceded by a table of contents.
Reproduction
Microfiche. Chicago, Ill. : Library Resources, inc., 1976. 6 microfiches : positive ; 8 x 13 cm. (Library of English literature ; LEL 22029-34)