Note I-9 — Chapter I · ON THE ORIGIN OF THE AMERICANS.

When De Gama established the globular form of the earth by his voyage round the Cape of Good Hope, in 1497-8, 'the political consequences that at once ensued placed the Papal Government in a position of great embarrassment. Its traditions and policy forbade it to admit any other than the flat figure of the earth, as revealed in the Scriptures.' In 1520 Magellan discovered the strait which now bears his name, and 'henceforth the theological doctrine of the flatness of the earth was irretrievably overthrown.' Draper's Conflict, pp. 163-5. St Augustin affirmed that the world beyond the tropic of cancer was uninhabited. 'Ea vero veterum sententia, perspicua atque inuicta, vt ipsis videbatur, ratione nitebatur. Nam vt quæque regio ad meridiem propius accedit, ita solis ardoribus magis expositam animaduerterant, idque adeo verum est, vt in eadem Italiæ prouincia Apuliam Liguria, & in nostra Hispania Bæticam Cantabria vsque adeo feruentiorem nota re liceat, vt per gradus vixdum octo grande frigoris & æstus discrimen sit.' Acosta, De Natura Novi Orbis, fol. 27. 'Lactantius Firmianus, and St. Austin, who strangely jear'd at as ridiculous, and not thinking fit for a Serious Answer the Foolish Opinion of Antipodes, or another Habitable World beyond the Equator: At which, Lactantius Drolling, says, what, Forsooth, here is a fine Opinion broach'd indeed; an Antipodes! heigh-day! People whose Feet tread with ours, and walk Foot to Foot with us; their Heads downwards, and yet drop not into the Sky! There, yes, very likely, the Trees loaden with Fruit grow downwards, and it Rains, Hails, and Snows upwards; the Roofs and Spires of Cities, tops of Mountains, point at the Sky beneath them, and the Rivers revers'd topsi-turvy, ready to flow into the Air out of their Channels.' Ogilby's America, pp. 6-7. The ancients believed a large portion of the globe to be uninhabitable by reason of excessive heat, which must have greatly deterred discovery.