["That which was once a sterile marsh, and bore vessels on its bosom, now feeds neighbouring cities, and admits the plough." --Horace, De Arte Poetica, v. 65.] But there is no great appearance that this isle was this New World so lately discovered: for that almost touched upon Spain, and it were an incredible effect of an inundation, to have tumbled back so prodigious a mass, above twelve hundred leagues: besides that our modern navigators have already almost discovered it to be no island, but terra firma, and continent with the East Indies on the one side, and with the lands under the two poles on the other side; or, if it be separate from them, it is by so narrow a strait and channel, that it none the more deserves the name of an island for that. It should seem, that in this great body, there are two sorts of motions, the one natural and the other febrific, as there are in ours. When I consider the impression that our river of Dordogne has made in my time on the right bank of its descent, and that in twenty years it has gained so much, and undermined the foundations of so many houses, I perceive it to be an extraordinary agitation: for had it always followed this course, or were hereafter to do it, the aspect of the world would be totally changed. But rivers alter their course, sometimes beating against the one side, and sometimes the other, and some times quietly keeping the channel. I do not speak of sudden inundations, the causes of which everybody understands. In Medoc, by the seashore, the Sieur d'Arsac, my brother, sees an estate he had there, buried under the sands which the sea vomits before it: where the tops of some houses are yet to be seen, and where his rents and domains are converted into pitiful barren pasturage. The inhabitants of this place affirm, that of late years the sea has driven so vehemently upon them, that they have lost above four leagues of land. These sands are her harbingers: and we now see great heaps of moving sand, that march half a league before her, and occupy the land.