THE PART OF THE planet earth that the seas occupy has been assessed at 3,832,558 square myriameters, hence more than 38,000,000,000 hectares. This liquid mass totals 2,250,000,000 cubic miles and could form a sphere with a diameter of sixty leagues, whose weight would be three quintillion metric tons.
Men berekent dat het water op den aardbol eene oppervlakte beslaat van 3.751.322.76 vierkante myriameter of meer dan 37-1/2 millioen hectaren.