...land, March 16, 1862. sir: I have the honor to report that on the thirteenth inst. I started in the Potomska, accompanied by the Pocahontas, with the launch and howitzer of this ship in charge of Lieut. Miller in tow, and proceeded through the inland passage toward the Altamaha River. I had heard that there were one or two rebel steamers at Darien, and I hoped that I might get possession of them. Abo...