“And so, sometimes flying from, and sometimes braving the wind, we rush into the uproar, we push on to that mass of rocks upon which the waves are crashing. Swelling at a distance, they rear themselves up—they are giants! Hardly have they reached the rocks than they crumble away, and the silly foam throws its flakes on the pine‐trees holding on to the mountain side. This is succeeded by a heavenly calm.” “The peaceful main, One molten mirror, one illumined plane, Clear as the blue, sublime, o’er‐arching sky.” “Down we gazed,” says Gosse, in one of his charming sea‐side works, “on the smooth sea, becoming more and more mirror‐like every moment, as the slight afternoon breeze died away into a calm, and allowing us from our vantage height to see far down into its depths. Presently I was gratified with the sight of one and then another of that enormous Medusa, the Great Rhizostome, urging its diagonal course at the shining surface. Its great bluish‐white disc, like a globe of fifteen or eighteen inches in diameter, moves foremost by alternate contractions and expansions, which remind one of the pulse of an enormous heart, especially as at each stroke a volume of fluid is shot out of the cavity, by the impact of which on the surrounding water the huge body is driven vigorously forward. Meanwhile the compound peduncle, with its eight arms that hang down to the depth of two feet below, is dragged after the disc, its weight and the resistance of the water to its bulk combining to give that slanting direction which this great Medusa always assumes when in motion. We watched the great unwieldy creatures a long time, even till evening had faded into night, and were left almost the only wanderers on the hill. But what a night it was! So calm, so balmy, so solemnly still and noiseless; even the wash of the ripple at the foot of the cliff was hushed. There was no moon, but many stars were twinkling and blinking, and in the north‐west a strong flush of light filled the sky, which was rapidly creeping along over the north cliffs. Then those cliffs themselves, all distinctness of feature lost in the darkness, stood like a great black wall in front of us, which being reflected in the placid sea so truly that no difference could be traced between substance and shadow, the dark mass, doubled in height, seemed to rise from a line only a few hundred yards off; and thus everything looked strange and unnatural and unrecognisable, although our reason told us the cause.