Traveller, called the "Abyssinian," born at Kinnaird House, Stirlingshire, set out from Cairo in 1768 in quest of the source of the Nile: believed he had discovered it; stayed two years in Abyssinia, and returned home by way of France, elated with his success; felt hurt that no honor was conferred on him, and for relief from the chagrin wrote an account of his travels in five quarto vols., the general accuracy of which, as far as it goes, has been attested by subsequent explorers (1730-1794).