The destruction of the rebel iron-clad Merrimac threw open the James river to the gunboats of Commodore Goldsborough; and on the 15th of May, the iron-clads Galena, Monitor and Naugatuck, ascended to Ward’s, on Drury’s Bluff, about eight miles below Richmond, where they encountered a heavy battery and two separate barriers formed of piles and sunken vessels. The banks of the river were lined with sharpshooters, who effectually prevented any attempt to remove the obstructions. The Galena ran within about six hundred yards of the battery, and opened fire; the Monitor attempted to pass ahead of her, but found her heavy guns ineffective at close range, as they would not admit of sufficient elevation to bear on the position of the enemy. The Aroostook and Port Royal, wooden vessels, were attached to the flotilla, but, of course were not adapted to an attack on fortifications of this nature, though they bravely took part in the distance. After an engagement of over three hours, the Federal vessels were compelled to relinquish the attack, without having produced any apparent effect upon the battery. The Naugatuck was disabled by the bursting of her 100-pound Parrott gun, and the Monitor was struck several times but received no injury. The Galena was not so fortunate. Thirteen shot penetrated her iron sides, starting the knees, planks, and timbers, and killing or wounding about twenty-five of her crew. Commodore Morris of the Port Royal was wounded in the engagement. The gunboat Ellis, Lieutenant W. P. Cushing, captured the town of Onslow, on New River Inlet, N. C., on November 23rd, destroying the salt works and securing three schooners and ten whale boats. The Ellis ran aground and was blown up by her commander, who secured his prizes without loss. NAVAL OPERATIONS ON THE MISSISSIPPI. MAY TO DECEMBER, 1862. Commander Palmer of the Iroquois, took possession of Baton Rouge on May 7th, which place was subsequently occupied by the military forces under General Williams. After the brilliant operations of the United States naval forces under Commodore Farragut which resulted in the capture of New Orleans, immediate steps were taken by that commander to ascend the river, and occupy such positions as would enable him to cooperate with important army movements then in contemplation. Seven vessels were sent up the Mississippi under Captain Craven, while the smaller steamers under Captain Lee were ordered to ascend as high as Vicksburg.