1. What we owe to Louis Agassiz, as a teacher: an address by George B. Emerson before the Boston Society of Natural History, Jan. 7, 1874 Author(s): Emerson, George B. (George Barrell), 1797-1881, author Publication: Boston : [publisher not identified], 1874 Subject(s): Research PersonnelNatural HistoryAgassiz, Louis, 1807-1873.