WALLING, Henry Francis, cartographer, born in Burrillville, Rhode Island, 11 June, 1825; died in Cambridge, Massachusetts, 8 April, 1888. He was educated at public schools and was fitted for college, but became assistant librarian in the Providence athenaeum. While so engaged he studied mathematics and surveying, and entered the office of Barrett Cushing, a civil engineer in Providence, whose partner he became in 1846. He began topographic work in 1849, and prepared atlases containing full maps and scientific descriptions of most of the northern states and the Dominion of Canada. In 1867 he was called to the chair of civil engineering in Lafayette, which he filled for three years, and then resigned to accept an appointment as assistant on the United States coast survey. Subsequently he became connected with the United States geological survey, and in 1884 was assigned to duty in connection with the geodetic survey of Massachusetts, on the preparation of the state maps, on which work he was engaged at the time of his death. He was a fellow of the American association for the advancement of science, and of the American society of civil engineers, to whose proceedings he contributed papers of value. It was said that "to him more than to any one else is due the better appreciation of good maps, which is now bearing fruit in the work of the national survey."