MACDONALD, John (1759-1831). A Treatise on Telegraphic Communication, Naval, Military, and Political: in which the known defects of the present system ... are obviated by the introduction of a numerical portable dictionary. London: T. Egerton: 1808. 8°. 5 engraved plates, one hand-coloured. (Some soiling.) Original pink boards with paper label (soiled and sunfaded, label chipped). FIRST EDITION, followed by a second in 1817. Wheeler Gift I, 689: 'volume of directions for flag signalling'.