steamers from Liverpool to Valparaiso, _via_ the Straits of Magellan. They had to await the diminished fuel consumption, which the company itself did so much to bring about through compound engines and surface condensation. In the following years we ourselves were not idle. In 1843 the celebrated screw steamer Princeton—whose name is connected in so melancholy a manner with the bursting of the “Peacemaker” and the death of the then Secretary of the Navy, when he and a number of other high officials were visiting the ship—was built for the navy after Ericsson’s designs, and fitted with one of his propellers. She was 164 feet long, with 30 feet 6 inches beam, and a displacement, at 18 feet draught, of 1,046 tons. She had a very flat floor, with great sharpness forward and excessive leanness aft. She may almost be taken as representative of the later type in model. She had three boilers, each 26 feet long, 9 feet 4 inches high, and 7 feet wide, with a grate surface of 134 square feet. In 1845, Mr. R. B. Forbes, of Boston, so long known for his intimate and successful connection with shipping interests, built the auxiliary screw steamers Massachusetts and Edith for transatlantic trade. The former was somewhat the larger, and was 178 feet long and 32 broad. Her machinery was designed by Ericsson, and had 2 cylinders, 25 inches diameter, working nearly at right angles to each other. The machinery was built by Hogg & Delamater, of New York, and had the peculiarity of having the shaft pass through the stern at the side of the stern-post, under a patent of Ericsson’s. The propeller, on Ericsson’s principle, was 9-1/2 feet diameter, and could be hoisted when the ship was under sail. She made but one voyage to Liverpool, and was then chartered by our Government to carry troops to Mexico, in 1846; but was later bought into the naval service and known as the Farralones. In June, 1847, the same year which witnessed the establishment of the Pacific Mail Company, the Washington, of 4,000 tons displacement, and of 2,000 indicated horse-power, was the pioneer of a line between New York and Bremen, touching at Southampton. The Hermann followed a little later, but was somewhat larger, the dimensions of the two ships being: Washington. Hermann. Total length 236 241 Beam 39 40 Depth 31 31 Their displacement was about 4,000 tons. The Franklin followed in 1848, and the Humboldt in 1850, both being a good deal larger than the two preceding. The latter two were, however, employed only between New York and Havre.