“In the distance,” says the Professor, “there is a rock or islet, against which the sea is breaking.”

Hans climbs up the mast, but sees no breakers. The ocean is smooth and unbroken to its farthest limit.

Three hours pass away. The roarings seem to proceed from a very distant waterfall.

I remark upon this to my uncle, who replies doubtfully: “Yes, I am convinced that I am right.” Are we, then, speeding forward to some cataract which will cast us down an abyss? This method of getting on may please the Professor, because it is vertical; but for my part I prefer the more ordinary modes of horizontal progression.