1. The races of man and their geographical distribution Author(s): Pickering, Charles, 1805-1878 Publication: Boston : Little and Brown, 1848 Subject(s): Continental Population GroupsIntroduced SpeciesPlants
2. Description of a species of Caligus, C. americanus Author(s): Pickering, Charles, 1805-1878 Publication: [New Haven?] : [s.n.], [1838] Subject(s): Copepoda -- classificationCrustacea -- classification
