1. Observations on the size of the brain in various races and families of man Author(s): Morton, Samuel George, 1799-1851 Publication: [Philadelphia? : s.n., 1849?] Subject(s): CephalometryContinental Population Groups
2. Brief remarks on the diversities of the human species: and on some kindred subjects : being a introductory lecture delivered before the class of Pennsylvania Medical College, in Philadelphia, November 1, 1842 Author(s): Morton, Samuel George, 1799-1851 Publication: Philadelphia : Merrihew & Thompson, Printers ..., 1842 Subject(s): Continental Population Groups