The Columbian voyages, the Columbian exchange, and their historians -- Ecological Imperialism: the overseas migration of Western Europeans as a biological phenomenon -- The biological metamorphosis of the Americas -- The British Empire as a product of continental drift -- Infectious disease and the demography of the Atlantic peoples -- Virgin soil epidemics as a factor in the Aboriginal depopulation of America -- "God ... would destroy them, and give their country to another people ..." -- Hawaiian depopulation as a model for the Amerindian experience -- The demographic effect of American crops in Europe -- Demography, maize, land, and the American character -- Reassessing 1492 -- Life (with all its problems) in space