I: The male white pubis II: The pubis of the male negro-white hybrid III: The pubis of the white female IV: The pubis of the female negro-white hybrid VI: The interpretation of variations in the symphysial area
Part I. : Adult males of white stock Part II. : Ectocranial closure in adult males of white stock Part III. : Endocranial closure in adult males of negro stock Part IV.: Ectocranial closure in adult males of negro stock