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 particles, as to seem sheeted in phosphorus. The slightest ripple increases the intensity of the light, and the dolphins flash through the water, literally 'moving in light of their own making.' In winter, this in a great measure disappears, the luminosity being confined to a few bright masses which sweep by the ship. I have often taken up bucketsful of water brilliant with luminous particles when stirred, but though I have tried the experiment in a hundred different ways, I have never been so fortunate as to get a sight of the zoophyte or animalculæ by which this is given forth, either with the naked eye or glass.

We landed at Gibraltar at noon, and embarked about five o'clock on the evening of the 10th. Of this time—of which a good deal was made by the more active of our passengers—I was unable to avail myself, being occupied in duties which I could not properly desert. Some of the party provided themselves with mules, and made an interesting excursion over the rock. The view of the African shore from Gibraltar Bay is, towards sunset, peculiarly beautiful—the fortress of Ceuta, standing out purple and red in the setting sun, in mimic rivalry of that on the European shore. One huge mass of mountains, of the Atlas group on the African side, with the Sierras of Andalusia on the Spanish shore, 'fill the mind with beauty' for a long while on leaving or on approaching Gibraltar.

After staying but a few hours, our gallant vessel was again on her course. The weather, unfortunately, was not propitious. On leaving Gibraltar we encountered a heavy gale of wind, which lasted four days. The wind was westerly, and, as is usual in such circumstances, the mercury in the barometer kept rising as the gale increased. When at its height, the column stood at 30.114, and began steadily to descend as the storm abated. How useful is this instrument to the mariner—how faithful its prognostications of storm and calm!

Pursuing our way up the Mediterranean, the vessel steers direct for Malta, by which we approach the African shore. On the 14th we were off Algiers. The bay and town, with the villas around, were plainly visible by the naked eye: we were little more than six miles off. The country adjoining appeared fertile and well-cultivated, and we could see roads, gardens, and enclosures, with fields and vineyards, all looking in good condition. Cape Faroe, and the promontory of the Seven Capes, are jagged, irregular headlands, very distinctly visible. Cape Bon was another headland which came into sight. We likewise passed within view of the dreary island of Pantellaria, which is evidently the huge tumulus of an extinct volcano. It is about thirty-six miles in circumference, and seems about three thousand feet in height. The raptured craters and streams of lava are easily traceable, with beds of loose stones hurled down the mountain's side during some of its fiercer explosions. A large mass of cloud, which might readily be mistaken for the smoke of smouldering fires, almost constantly rests on the summit of the mountain. There is a considerable town, of the same name with the island, near the sea-*shore on the western slope, and vineyards and gardens appear scattered about in surprising abundance. It belongs to the king of Sicily, and is used as a penal settlement, whither the Sicilian convicts are sent.

Our coal had been so heavily taxed by the storm, which had only now abated, that we were at one time on the point of making for Tunis. The wind got round upon us, and it is astonishing how rapidly in these seas the swell