In the last column it is observable how rapidly the speed enhances the cost price of transporting cargo. At 13 miles per hour the cost would be about six pounds sterling per ton, and at 14 knots speed it would be higher than was ever paid a steamer in the most flush periods of even the best qualities of freights. Freights were about L8 per ton on the Cunard line before the establishment of the Collins; but they soon came down, and are not now L3, or $15, on an average. So with passage. The "Great Western" charged L45, the "British Queen" L50; the Cunarders, until the Collins competition, L40, 19_s._ The Collins steamers put the price down to L35, and have since reduced it to L30 homeward, and L24 outward. This is but little above half the fare of the Great Western, and something over two thirds of that formerly charged by the Cunard line. The Report to the House of Commons "on Steam Communications with India," No. 372 of 1851, second volume, page 395, says, that the average speed of the Cunard line was 10.443 knots, of the Collins line 11 knots, and of the Havre and Bremen lines 9.875 knots per hour. The Collins line had then just started, and has since made the average passages one and a half days quicker than those of the Cunard line. This being the case, it is easy to estimate the gains of a steamer at such rates, when this column shows us that at 12 miles speed per hour and an average trip of 11 days, the actual prime cost of moving the freight is much above that which is received for it. It is therefore taken in small quantities only to assist in paying the running expenses of the steamer. This table shows another thing very conclusively, that large ships running the same number of miles per hour, run cheaper and transport freight more cheaply than smaller vessels. It presupposes, however, that they go full both ways. The engine power and general outlay do not increase as rapidly as the tonnage of the vessel and her capacity for carrying. While a ship 2,500 tons at 12 miles per hour on a passage of 3,250 miles would make the cost per ton for the transportation of freight $22.75, one of 20,000 tons, under the same conditions would reduce it to $9 per ton. Yet it is hardly probable that we shall ever profitably employ steamers of over 10,000 tons tonnage in the passenger, mail, and freight business.