Note 172 — Chapter IX
Reading edition
Among those who had given the matter thought was Dr. William Thornton of Philadelphia, who in 1793 published "Cadmus: a Treatise on the Elements of Written Language", there being an appendix on "A Mode of Teaching the Deaf, or Surd, and Consequently Dumb, to Speak". Transactions of American Philosophical Society, iii., p. 262, as cited in Association Review, ii., 1900, p. 113. See also ibid., v., 1903, p. 406; Annals, i., 1848, p. 190. He was the first writer in America upon the education of the deaf.