Truxton, Captain Thomas, captures prizes in the Azores, i. 205; cuts out three ships from the British fleet, _ib._; fits out the _Mars_ and cruises in the English Channel, _ib._; involves France in war with England, 206; successfully beats off a British frigate, _ib._; Captain of the _Constellation_, compels the French frigate _Vengeance_ to fight, 323; loses her in the night, 328. _Truxton_, American brig, grounded before Tuspan, Mexico, and is captured, iii. 410. Tucker, John, Assistant Secretary of War, asks Commodore Vanderbilt his terms for destroying the _Merrimac_, iv. 212. Tucker, Captain Samuel, captures thirty British vessels, i. 203. Tunis, brought to terms by the American fleet, i. 378, 379; pays indemnity to United States for seizing the _Abellino_ prizes, iii. 353. _Tuscumbia_, Federal gun-boat in Porter’s fleet before Vicksburg, iv. 363. Tybee Bar, Savannah, coal-ships ordered to go to, iv. 165. _Unadilla_, Federal frigate, iv. 163; attacked by the Confederate ironclad _Palmetto State_, 474. _Underwriter_, Federal gun-boat, boarded and destroyed by John Taylor Wood, iv. 452. _Unicorn_, British frigate, captures the _Raleigh_, i. 194. _United States_, American frigate, built, i. 312. United States Astronomical Expedition to the Southern Hemisphere, members of, iii. 464. _United States_, frigate, falls in with the _Eurydice_ and _Atalanta_, ii. 16; cruises between the Azores and the Canary Islands, 121; encounters the _Macedonian_, 122; battle with, 125–134; losses after the battle, 139; comparison of the forces of the two ships, 140; blockaded in New London, 150. United States Government abrogates all treaties with France, i. 314. _United We Stand_, American privateer, ii. 253. Valcour Island, Lake Champlain, fight between Benedict Arnold and Sir Guy Carleton at, i. 92–99. Van Brunt, Captain G. I., iv. 99. _Vandalia_, United States warship, sank at Samoa in a hurricane, iv. 554. _Vandalia_, Federal sailing-ship, iv. 163; sails from Hampton Roads with a fleet of coal schooners in charge, 165; encounters a hurricane, 166. Vanderbilt, Commodore Cornelius, asked for what sum he would destroy the _Merrimac_, iv. 212. _Van Dorn_, Confederate gun-boat, rams the _Mound City_ and disables her, iv. 294. _Varuna_, Federal screw corvette, iv. 314. Vaughan, Captain William, at Sackett’s Harbor, ii. 267; drives off the British, 268. _Vengeance_, American brig, in Paul Jones’s fleet, i. 232. _Vengeance_, French frigate, fight with the _Constellation_, i. 323; surrenders, 327; slips away in the night to Curaçao, 328; returned to France, 330. Vera Cruz, Mexico, siege and blockade of, by Americans, iii. 417–424; the city captured, 424–427; the navy’s part in the capture, 424.