A Diary of American Events.

April 18.—The rebel side-wheel steamer St John was captured while endeavoring to run the blockade into Cape Romaine Inlet, by the National steamer Stettin.—A reconnoissance of Sabine Pass, Texas, was made by a party from the National gunboats Cayuga and New-London. On landing near the light-house they were fired on by concealed rebels, Captain McDermott of the Cayuga being killed, and his crew of five men captured. Captain Reed of the New-London was wounded, together with four of his men.— Fayetteville, Ark., garrisoned by a force of National troops under the command of Colonel Harrison, was this morning attacked by a strong body of rebels, but after a desperate contest of six hours’ duration, they were repulsed with considerable loss.—(Doc. 172.)