...ternoon a desperate effort was made by the enemy to turn our left and get possession of the landing, transports, etc. This point was guarded by the gunboats Tyler and Lexington, Capts. Gwin and Shirk , commanding, with four twenty-four-pounder Parrott guns, and a battery of rifled guns. As there is a deep and impassable ravine for artillery or cavalry, and very difficult for infantry at this p...