Incluye bibliografía e índice CONTENIDO: The biogeographic subdivisions of the earth. -- Biogeography and continental drift. -- Evolution, phylogeny, and geographic spread. -- The quaternary ice age and biogeography. -- The biogeography of marine organisms. -- Island biogeography. -- Geographical ecology. -- Dispersal, diffusion, and secular migration. -- Disjunctions. -- The geography of genes and chromosomes.
