It will really now become useful to collect and preserve records of speed at sea, in connection with particular ships of particular build, as a guide to future construction. Mr Henry Wise published a volume about 1840, containing an analysis of one hundred voyages, made by ships belonging to the East India Company, extracted from the ships' logs preserved by the Company. It appears that an average gave 112 days as the duration of a voyage from London to Bombay. Now, within the last few months we have seen that the Chrysolite, a small clipper, built at Aberdeen for a Liverpool firm, has made the run from England to China in 104 days; and the Stornoway, built at the same place for a London firm, has accomplished the distance in 103 days. Let the reader open his map, and compare the relative distances of Bombay and China from England, and he will then see what a wonderful increase of speed is implied in the above numbers. Three American clippers were sighted during the out and home voyages of the two vessels, and, if newspaper reports tell truly, were distanced by them.

We must not expect that the vast and unprecedented emigration to California and Australia now going on, will be designedly and materially connected with high speed, because most of the emigrants go in roomy ships, at fares as low as are attainable; but goods-traffic, and the higher class of passenger-traffic, are every month coming more and more within the domain of high speed. Let us take two instances which 1852 has afforded, one furnished by England, and one by America—one connected with the Australian trade, and one with the Chinese. The Aberdeen clipper-built barque, Phœnician, arrived at Plymouth on February 3, having left Sydney on November 12, and performed the voyage in 83 days! Her previous voyages had varied from 88 to 103 days. The other instance is that of the American clipper, Witch of the Wave, a fine vessel of 1400 tons burden, which left Canton on 5th January, and arrived in the Downs on 4th April, a period of 90 days. Her greatest speed is said to have been 338 nautical miles—equivalent to about 389 English miles—in 24 hours.

Thus it is, we find, that in one voyage we beat the Americans—in another, they outstrip us; and there seems at present no reason why either country should fail in making still further advances. The Liverpool and New York packet-trade affords another example of the same principle which we have been considering; gradually these truly noble vessels are acquiring an increased rate of speed. Not only does the general desire for high speed impel their owners to this, but there is a more direct incentive in the increased rivalry of steam-vessels. The American 'liners,' as the sailing-packets on this route are usually called, have had in past years an average of about 36 days outward passage, and 24 days homeward; but they are now shooting ahead unmistakably. The Racer, built at New York in 1851, and placed upon the Liverpool station, is a magnificent clipper of 1700 tons register; it made its first voyage from New York to Liverpool in 14 days—a quickness not only exceeding that of its predecessors, but leaving nearly all of them many days in arrear. Even this, however, was shortly afterwards excelled; for another new clipper, the Washington, accomplished the distance in a little over 13½ days.

The pleasure-vessels which are so numerous in the south of England, belonging to the several yacht-clubs, are sharing in the modern speed-producing improvements observable in other vessels. Every one has heard of the yacht America, which arrived at Cowes from the United States in July 1851, and of the challenge which her owners threw out against English yacht-owners. Every one knows that the America beat the yachts which were fitted against her. This victory has led to an immense activity on the part of yacht-builders in England; they are studying all the peculiarities in the build and the trim of the yachts belonging to the different ports and different countries; and we are justified by every analogy in expecting, that good results will spring out of wits thus sharpened.

Although we have not deemed it necessary in the present paper to touch on the national struggle between steam-ships, we must not forget that one of the most promising and valuable features in steam navigation arose as an appendage to sailing. The auxiliary screw will deserve the blessings of our colonists, for reasons which may be soon told. When it was yet uncertain what result would mark the contest Screw v. Paddle, it was suggested that the screw-propeller might probably be used as an auxiliary power, for occasional use during calms and contrary winds; the vessel to be a sailing-vessel under ordinary circumstances; but to have a marine engine and a screw for exigencies at times when the ship would be brought to a stand-still or even driven backwards. About seven years ago, an American packet-ship, the Massachusetts, a complete sailing-vessel in other respects, was provided with a screw and a steam-engine powerful enough to keep the ship moving when winds and tides were adverse; the screw was capable of being lifted out of the water when not in use. In her first voyage from Liverpool to America, this ship gained from five to thirteen days as compared with five other ships which sailed either on the same or the following day. This experiment was deemed so far successful, that the Admiralty ordered, in 1846, an auxiliary screw to be fitted to the Amphion frigate, then building at Woolwich. Another example was the Sarah Sands, an iron ship of 1300 tons; she had engines of 180 horse-power, much below that requisite for an ordinary steamer of the same size. She could carry three classes of passengers, coal for the whole voyage, and 900 tons of merchandise. She made four voyages in 1847, two out and two home; and in 1848 she made five: her average time was about nineteen days out, and seventeen days home, and she usually passed about six liners on the voyage.

The speed here mentioned is not quite equal to that of the truly remarkable clippers noticed above, but it far exceeded that of any liner at work in 1848. The example was followed in other vessels; and then men began to cherish the vision of a propeller screwing its way through the broad ocean to our distant colonies. From this humble beginning as an auxiliary, the screw has obtained a place of more and more dignity, until at length we see the mails for the Cape and for Australia intrusted confidently to its safe-keeping.

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