It was not a difficult task to convince the British statesman that it was his duty to encourage the commerce, on which the wealth, power, and glory of his country depended, by all the aids known to the constitution; and to uphold the hands of the merchant by the use of the money which his traffic had brought into the public coffers. There was no contest between North and South, East and West. It was the whole of England which was to be benefited directly or indirectly; and they were willing that it should be any part rather than none. The evident advantages which the United States possessed in her more numerous articles of export, (_see page 16_,) as well as the rapid strides which her first clippers were making across the ocean, were reasons urgent enough for the forecasting statesmen of Britain; and they determined to continue or to obtain the profitable dominion of the seas, although it might cost a sum of money far beyond the postal income. They knew that these postal and passenger facilities were needed by every class of community, and that there was no one in the kingdom who would not be in some way benefited by them; and that the sums of money paid for them, although not apparently returned, were yet returned in a thousand indirect channels and by a variety of reflex benefits not calculable as a transaction of exchange. We, therefore, see to-day, as the fruit of that determination, the proudest and the most profitable postal and mercantile steam marine that floats the seas. Several large companies, authorized to transport the mails to all parts of the world, were immediately organized, and paid liberal allowances for their peculiar duties. Where the practicability of the service was considered doubtful, larger sums were paid, and a greater length of time granted for making the experiment. The contracts were generally made for twelve years; and when their terms expired they were renewed for another term of twelve years, which will expire in 1862. Thus many of the lines have been in operation for the last nineteen years, and have demonstrated the practicability, the cheapness, the utility, and the necessity of such service. The entire foreign mail service is conducted by fifteen companies, having one hundred and twenty-one steamers, with a gross tonnage of 235,488 tons; the net tonnage being 141,293, assuming the engines, boilers, fuel, etc., to be forty per cent of the whole tonnage, which is altogether too low an estimate. The whole number of British sea-going steamers is sixteen hundred and sixty-nine, with an aggregate tonnage of 383,598 tons, exclusive of engines and boilers, and of 639,330 tons gross, including engines and boilers. (_See paper A, page 192._) We must add to this list the new steamer "Great Eastern," whose tonnage is twenty-seven thousand tons, and which will make the entire present mercantile steam tonnage of Great Britain 660,330 tons. The greater portion of these steamers, exclusive of