1. Specialization and organization: companion principles of all progress : the most important need of American biology Author(s): Whitman, Charles Otis, 1842-1910, author Publication: Boston, U.S.A. : Ginn & Company, 1891 Subject(s): Biology -- organization & administrationSpecializationUnited States
2. The medical specialist Author(s): Taylor, Lewis Harlow, author Publication: [Easton, Pa.?] : [publisher not identified], [1891?] Subject(s): Specialization