founder of the institution for deaf mutes at Copenhagen, was born in Norway in 1780. After having passed through his medical studies at Copenhagen, he traveled through Germany, France, and Italy to study methods of instruction for the deaf and dumb. On his return in 1805 he became professor, and in 1807 director, of the institution. He died in 1827, leaving, among other scientific dissertations, Farelosninger over Dovstumme-Undervusningets Methode (Copenhagen, 1818): — Sententiae de Inspiratione Prima (ibid. 1823): — Carl Michael de l'Epee, et Biographik Fors. (ibid. 1806), etc. See Hoefer, Nouv. Biog. Gé neralé, s.v.