Page:The ocean and its wonders.djvu/157



heat of the water and atmosphere united accomplishes their dissolution. They sometimes travel as far south as Florida with the southerly current that flows along that coast; but the warm waters of the Gulf Stream, together with its northerly flow, form an impassable barrier between these ice-mountains and Europe.

Icebergs assume every variety of form, and almost every size. They sometimes resemble castles,