The universal geography : earth and its inhabitants

6THE NOETH-EAST ATLANTIC.boat manned with a strong crew can scarcely make head against them.*Thesecurrents send southwards continuous lines of icebergs with their loads of detritus,which sink to the bottom during the summer at the contact with the southernbranch of the Atlantic waters. The vast bank stretching north-west of BearIsland seems to be an immense submarine moraine similar to the bank ofNewfoundland, t But beyond those rocky deposits the polar stream continues toflow towards the warmer waters from the south, interpenetrating them with currentsof cold water like those met with in the regions east of Iceland.The arctic section of the East Atlantic is thus on the whole marked off withsufficient clearness by the form of its submarine bank, by the general movement ofJV. 2.Isothermal Lines of the North-East Atlantic in July.According to Molin. Scale 1 : 2S,000,000.u'i£ G . -w'«its waters, and by the meteorological conditions. The European waters are almostentirely occupied, at least in summer, by the tropical currents. Doubtless inwinter the warm stream, although much more regular in its movements thanduring the hot season, is everywhere driven far to the south, the water north ofJan Mayen and Bear Islands being below freezing point, and almost entirely filledby icebergs. Still the mean temperature of the North-east Atlantic is at alltimes much higher than that found elsewhere in the same latitude. The meandifference from July to January between cold and heat for any given point in this* Lamont, Masqueray, Bulletin de la Soeieti