Such is their ponderous weight that they cannot rise from the horizon; but, obeying an impulse from higher currents, their dense consistency slowly yields. The gloom upon them deepens; and they soon present to our view a ponderous mass of almost level surface.
Son tan pesadas, que no pueden desprenderse del horizonte; pero, al impulso de las corrientes superiores, fúndense poco a poco, se ensombrecen y no tardan en formar una sola capa de aspecto en extremo imponente.