Isle St. Mary, Paul Jones lands on and surrounds the house of the Earl of Selkirk, i. 147, 148. _Itasca_, Federal screw gun-boat, iv. 314; breaks down barriers placed across the Mississippi, 323; Lieutenant-commander George Brown, 389. _Ivy_, Confederate gun-boat, iv. 127. James, Reuben, seaman, saves Decatur’s life, i. 364. _James Adger_, American cruiser, captures the _Emily St. Pierre_, iv. 58; the latter recaptured, _ib._ _Jamestown_, Confederate warship, captures several prizes in sight of the _Monitor_, iv. 235. Japan, condition of, in the sixteenth century, iii. 438; experience with Christianity, _ib._; Dutch trading at Nagasaki, _ib._; introduction of Western civilization by the American fleet, 439; Commodore M. C. Perry’s work in opening the ports of Japan, _ib._; appointed to the Japan mission, 443; Commodore Perry’s exhibition of power and dignity wins the respect of, 444. _Jason_, British transport, captured by Captain Hopkins, i. 281. _Java_, British frigate, fight with the _Constitution_ off the coast of Brazil, 155–173; poor gunnery of, 157; a complete wreck in sixty-five minutes, 162; losses of, 169. _Jefferson_, American brig, iii. 113. _Jefferson Davis_, Confederate privateer, captures the _John Welsh_, _Enchantress_, _S. J. Waring_, iv. 91; _Mary Goodell_ and _Mary E. Thompson_, 92; runs aground at St. Augustine and is lost, 93. Jenkins, Captain Thornton A., iv. 386. _Jersey_, the notorious prison-ship, sketch of, i. 221–226. _John Adams_, Perry’s flagship on his cruise to South America, iii. 327. _John Welsh_, merchant-brig, captured by Confederate privateer _Jefferson Davis_, iv. 91. Johnson, Captain Henry, in charge of brig _Lexington_, sent to Europe, i. 117. Johnson, Captain J. D., succeeds Admiral Buchanan on the _Tennessee_, iv. 402; surrenders his ship to Captain Le Roy, of the Federal steamer _Ossipee_, 403. Jones, Captain Jacob, encounters the _Frolic_ in a gale, ii. 106; captures the _Frolic_, 107–117; surrenders the _Wasp_ and the _Frolic_ to the frigate _Poictiers_, 118, 119; rewarded with a gold medal from Congress, 119; given command of the frigate _Macedonian_, 119, 143. _Jones_, American brig, iii. 113.