...ay in the river between this and Gloucester Point, took up a position so as to rake the approaches to the fort. Thus prepared, he waited watchfully for their advent. About dark a contraband, whom Capt. Patterson had employed to watch the movements of the enemy, came down to the beach, jumped into his boat, and rowed to the side of the Chocorua, and reported the rebels within range of her guns. The Chocorua...