...ll's Causeway. Only the gunboat McDonough was ready to co-operate, for the monitors were not on hand. Even during these early hours the troops suffered greatly from the heat, and in moving over Cole's Island several men of the Fifty-fourth fell exhausted, and one dropped senseless. The bridge to James Island was crossed at 6 A. M., bringing us upon familiar ground. Captains Walton and Appleton, of Ge...