On the 21st of December, 1881, information was received that the exploring steamer _Jeannette_ had been crushed and abandoned in the Arctic Ocean. The officers and crew, after a journey over the ice, embarked in three boats for the coast of Siberia. One of the parties, under the command of Chief Engineer George W. Melville, reached the land, and, falling in with the natives, was saved. Another, under Lieutenant-Commander De Long, landed in a barren region near the mouth of the Lena River. After six weeks had elapsed all but two of the number had died from fatigue and starvation. No tidings have been received from the party in the third boat, under the command of Lieutenant Chipp, but a long and fruitless investigation leaves little doubt that all its members perished at sea. As a slight tribute to their heroism I give in this communication the names of the gallant men who sacrificed their lives on this expedition: Lieutenant-Commander George W. De Long, Surgeon James M. Ambler, Jerome J. Collins, Hans Halmer Erichsen, Heinrich H. Kaacke, George W. Boyd, Walter Lee, Adolph Dressier, Carl A. Görtz, Nelse Iverson, the cook Ah Sam, and the Indian Alexy. The officers and men in the missing boat were Lieutenant Charles W. Chipp, commanding; William Dunbar, Alfred Sweetman, Walter Sharvell, Albert C. Kuehne, Edward Star, Henry D. Warren, and Peter E. Johnson. Lieutenant Giles B. Harber and Master William H. Scheutze are now, bringing home the remains of Lieutenant De Long and his comrades, in pursuance of the directions of Congress. The _Rodgers_, fitted out for the relief of the _Jeannette_ in accordance with the act of Congress of March 3, 1881, sailed from San Francisco June 16 under the command of Lieutenant Robert M. Berry. On November 30 she was accidentally destroyed by fire while in winter quarters in St. Lawrence Bay, but the officers and crew succeeded in escaping to the shore. Lieutenant Berry and one of his officers, after making a search for the _Jeannette_ along the coast of Siberia, fell in with Chief Engineer Melville's party and returned home by way of Europe. The other officers and the crew of the _Rodgers_ were brought from St. Lawrence Bay by the whaling steamer _North Star_. Master Charles F. Putnam, who had been placed in charge of a depot of supplies at Cape Serdze, returning to his post from St. Lawrence Bay across the ice in a blinding snowstorm, was carried out to sea and lost, notwithstanding all efforts to rescue him. It appears by the Secretary's report that the available naval force of the United States consists of 37 cruisers, 14 single-turreted monitors, built during the rebellion, a large number of smoothbore guns and Parrott rifles, and 87 rifled cannon. The cruising vessels should be gradually replaced by iron or steel ships, the monitors by modern armored vessels, and the armament by high-power rifled guns.