Emitted from all habitable worlds in the form of spores which traverse space for years or ages, the majority being ultimately destroyed by the heat of some blazing star, but some few finding a resting-place on bodies which have reached the habitable stage.
Southern Patagonia and Tierra del Fuego, for instance, although they correspond in latitude to Labrador, are made habitable and an excellent sheep-grazing country by the southerly equatorial current along the continental coast.
In 1881 President Roca offered for public purchase by auction the lands in the southwest of the province of Buenos Aires, the Pampa Central, and the Neuquen district, these lands having been rendered habitable after the campaign of 1878 against the Indians.
The first hint to reach Europe concerning the existence of habitable lands to the eastward of the Ganges is to be found in the writings of Pomponius Mela (A.D.
In 1653 he had made the astonishing proposal to the Dutch that England and Holland should divide the habitable globe outside Europe between them, that all states maintaining the Inquisition should be treated as enemies by both the proposed allies, and that the latter "should send missionaries to all peoples willing to receive them, to inculcate the truth of Jesus Christ and the Holy Gospel."