The midshipman, finding it of no avail to continue the parley, told his cockswain to go aloft and "dowse the pennant and leave it in the cross-trees." This was done, regardless of the protest of the captain, and his threats to lay the subject before the government and make it a national matter. The boat had hardly reached the manof-war, when the pennant was again flying on board the American brig, and seemed to wave more proudly than before.

The man-of-war's boat was sent back, and some sharp words were exchanged between the British officer and the Yankee captain; but the former, possessing superior physical force, was triumphant. The pennant was again hauled down, but this time it was not left in the cross-trees. The cockswain took it with him and it was carried on board the English brig, in spite of the denunciations hurled against men-of-war's men, in which the epithets "thieves," "robbers," and "pirates," were distinctly heard.

A few nights after the above-mentioned occurrence we received an unexpected addition to the number of our crew. It was about an hour after midnight, when the man who had the watch on deck was comfortably seated on a coil of rope beneath the main deck awning, and probably dozing, while sheltered from a heavy and protracted shower of rain. The night was dark and gloomy; the ebb tide made a moaning, monotonous noise under the bows, and rushed swiftly by the sides of the vessel, leaving a broad wake astern. The sailor was roused from his comfortable position by a sound resembling the cry of a person in distress. He started to his feet, and stepped out from beneath the awning. He listened, and again distinctly heard the cry, which seemed to come from the water under the bows. Supposing it might proceed from some person who had fallen overboard and wanted help, he went forward to the knight-heads, and called out, "Who's there?"

A voice from below the bowsprit faintly replied, "Shipmate, for God's sake bear a hand, and give me help. I can hold on but a few minutes longer."

He was now aware that a man, in an exhausted condition, was clinging to the cable, and required immediate assistance. He called up his shipmates, and with little difficulty they succeeded in hauling him safely on board. He proved to be a fine-looking English sailor; and as soon as he recovered strength enough to converse, explained the cause of his perilous situation.

He belonged to the brig-of-war, which was lying at anchor about half a mile above. He had been impressed two years before; and being treated with cruelty and harshness, had been eagerly watching an opportunity to escape from his inhuman bondage. At length he formed a plan with one of his messmates, to slip overboard quietly the first dark night, and relying on skill in swimming, at-. tempt to reach some vessel at anchor in the harbor.

The plan was carried into effect. They succeeded in eluding the vigilance of the sentries, dropped gently into the water, and were soon floating astern. But their situation was one of extreme peril. The current was stronger than they anticipated, and the darkness of the night prevented them from distinguishing any vessel in time to get on board. As soon as they were swept out of hearing of the man-of-war, they shouted loudly for help; but the murmuring of the tide, the pattering of the rain, and the howling of the wind prevented their voices from being heard, as, notwithstanding their exertions to stem the tide, they floated rapidly down the river towards the bar.

What risks will a man encounter to secure his liberty! It was not long before these friends separated, never to meet again. One of them sank beneath the waters. The other had given up all expectation of being rescued, when he beheld an object, darker than the murky atmosphere

by which it was surrounded, rising, as it appeared to him, out of the water. His heart beat quicker within his bosom. In a moment more he had seized the cable of the Dolphin, and shouted for help.

This man was grateful for the succor he had received, and expressed a wish to work his passage to the United States. To this suggestion Captain Tilton offered no objection; and he subsequently proved to be one of the best men on board.

That very morning the black pilot made his appearance, grinning as he thrust his dark muzzle over the gunwale. He was greeted with answering smiles, for we were "homeward bound," and all hands cheerfully commenced heaving up the anchor and making sail. With a favorable breeze and an ebb tide we soon passed the bar, and entered upon the broad ocean. The fresh trade wind was welcome after sweltering for weeks in the sultry and unwholesome atmosphere of Demarara; and the clear and pellucid waters of the ocean bore a cheerful aspect, contrasted with the thick and opaque waters of the river in which we had remained several weeks at anchor.

Nothing remarkable occurred during the homeward passage, until we reached the Gulf Stream,-that extraordinary current, sixty or seventy miles in width, and many degrees warmer than the ocean water on either side, and which reaches from the Gulf of Florida to the Shoals of Nantucket. There can be no doubt that this current of the Gulf Stream is owing to the trade winds in the tropical seas, which, blowing at all times from the eastward, drive a large body of water towards the American continent. Vessels bound to India invariably meet with a strong westerly current within the tropics, and particularly in the vicinity of the equator. This volume of water is thus forced along the shores of Brazil and Guiana, until it enters the Caribbean Sea, from which it has no outlet excepting through the strait bounded by Cape Catouche

in Yucatan, on one side, and Cape St. Antonio, in Cuba, on the other.

Through this strait, after a strong trade wind has been blowing for a time, the current sets into the Gulf of Mexico at the rate of two or three knots an hour. Here the waters of the tropical seas are mingled with the waters of the Mississippi, the Balize, the Rio Grande, the Colorado, the Alabama, and other large streams which empty into the Gulf of Mexico; and turning off to the eastward, this body of water is driven along between the coasts of Cuba and Florida until it strikes the Salt Key Bank and the Bahamas, when it receives another considerable addition from the currents, which, from the same causes, are continually setting west through the Old Bahama and New Providence Channels. It is then forced northward along the coast of Florida and the Middle States. The stream becomes wider as it extends north, diminishes its velocity, and gradually changes its temperature, until it strikes the shoals south of Nantucket and the Bank of St. George, when it branches off to the eastward, washes the southern edge of the Bank of Newfoundland, and a portion of it is lost in the ocean between the Western and Canary Islands; and another portion, sweeping to the southward past the Cape de Verdes, is again impelled to the westward across the Atlantic, and performs its regular round.

The current always moving in the same circuitous track, forms, according to Mr. Maury, to whose scientific labors the commercial world is deeply indebted, an immense whirlpool, whose circuit embraces the whole North Atlantic Ocean. In the centre of the whirl is a quiet spot, equal in extent of area to the whole Mississippi valley, unaffected by currents of any kind. And here, as a matter of course, the greater part of the gulf-weed and other floating materials, which are carried round by the current, is eventually deposited. This is the "Sargasso Sea" of

the ancients. Columbus crossed this "weedy sea" on his quest after a western passage to India. And the singular appearance of the ocean, thickly matted over with gulfweed, caused great alarm among his companions, who thought they had reached the limits of navigation.

A current of a character similar to the Gulf Stream only not so strong-is experienced along the east coast of Africa, from Mozambique to the Lagullas Bank, off the Cape of Good Hope. This current is undoubtedly caused by the trade wind forcing the water towards the coast of Africa. But in this case it is not driven into a narrow passage, like the Gulf of Florida, which would greatly increase its velocity. The temperature of the water in the current off the Cape of Good Hope is also several degrees higher than the ocean waters in the neighborhood of the current.

On the afternoon on which we entered the Gulf Stream the wind hauled suddenly to the eastward, and the heavens were obscured by clouds. The breeze also increased, and the sea became rough, causing the brig to assume various unseemly attitudes, and perform gymnastic exercises wonderful to behold. As the wind increased and the sea became more turbulent, the Dolphin tumbled about like an elephant dancing a hornpipe, insomuch that it was difficult for a person to keep his perpendicular. Indeed, as I was passing along from the camboose to the cabin, with a plate of toast in one hand and a teapot in the other, the brig took a lee lurch without giving notice of her intention, and sent me with tremendous force across the deck, to leeward, where I brought up against the rail. But the tea and toast were ejected from my hands into the sea, and I never saw them more.

At twilight, Captain Tilton came on deck, and looking around the horizon, said, addressing the mate," Mr. Thompson, the weather looks greasy to windward; I fear