1. The primitive diversity and number of animals in geological times Author(s): Agassiz, Louis, 1807-1873, author Publication: [New Haven?] : [publisher not identified], [1854] Subject(s): Animal DistributionFossilsBiodiversityPaleontology
2. Geographical distribution of animals Author(s): Agassiz, Louis, 1807-1873, author Publication: [Boston?] : [publisher not identified], [1850] Subject(s): Animal DistributionClimatePhylogeography