WELD, Isaac, British traveller, born in Dublin, Ireland, 15 March, 1774; died near Bray, County Dublin, 4 August, 1856. His father, Isaac Weld, of Dublin, was a personal friend of Charles James Fox. The son travelled extensively on this coati-neat, and was for fifty-six years connected with the Royal society of Dublin, of which he was long secretary and vice-president. His journey in this country was prompted by the idea that the Irish people would afterward be led to emigrate hither in great numbers. Arriving in Philadelphia in September, 1795, he made his way, on horseback, on foot, or in a canoe, through dense forests and along rivers, trusting often to friendly Indians for safe conduct. In the cities he saw much of the best society, and made the acquaintance of George Washington and Thomas Jefferson. The result of his trip was his " Travels through the States of North America and the Provinces of Upper and Lower Canada during the Years 1795. 1796, and 1797." (London, 1799, many later editions; French translation, 3 vols., Paris. 1800; German translation, 3 vols., The Hague, 1801-'2). Mr. Weld wrote also "Illustrations of the Scenery of Killarney and the Surrounding Country" (1807).--His half-brother, Charles Richard, English traveller, born in Windsor, England, in 1818; died in Bath, 15 January, 1869, was for many years assistant secretary of the Royal society, and the author, among many other works, of " A Vacation Tour in the United States and Canada" (London, 1855).