The General led us first around the outer moat to the face fronting Tybee Island, from which he had bombarded it. The breaches have all been thoroughly repaired, but with a different-colored brick; and the pock-marked appearance of the casemates sufficiently attested the efficiency of the fire. Inside the fort there was nothing to see, save that with mosquito-nets, instead of doors and windows, with ample supplies of ice, and by the aid of the thick walls of the fort, our Yankee officers have learned to make garrison duty in the South quite endurable. Beside Sumter and Fisher, Fort Pulaski is contemptible; and the main interest now attaching to the place is, that it taught us, as General Gillmore tersely expresses it, “how any brick or stone fort can be rapidly breached at 1,650 yards distance,” and that, “with guns of my own selection, I would undertake to breach a brick scarp at 2,000 yards.” The fort is now stronger and better every way than when seized by the Rebels; but, as a protection to the harbor of Savannah, against an attack of iron-clads, or the advance of an army, with rifled artillery, it is nearly valueless. Like our other brick and stone forts on the coast, however, it may be made the basis of a powerful defense. Heap up earthworks on the outside, and, so long as its garrison could be provisioned, it would be impregnable. * * * * * A sunken vessel lay in the channel, off the fort, and the narrowness Of the passage showed how utterly impossible the fall of Pulaski had made blockade running for Savannah. Realizing the fact, its defenders had taken little pains to keep the river open; and their cribs of logs, firmly bolted together and filled with stones to obstruct the passage of our iron-clads up the stream, had so nearly destroyed the navigation that, even at the time of our visit, after weeks of work in removing them, since the city fell into our hands, our Captain was afraid to attempt the passage in the dark, and we had to lie at anchor, half a mile above Pulaski, all night. Everybody was awakened, next morning, by the announcement that Jeff. Davis was alongside. If the officer who came hurrying through the cabin to tell it, had said the Prince of Darkness was alongside, in the bodily presence, no one would have been more surprised. Admiral Dahlgren had told us of close watch kept along the west coast of Florida for the fallen Chief, and General Gillmore had, only the day before, been expressing rather faint hopes that, possibly, the vigilance of the land and naval forces in that distant quarter might be rewarded with success. That, in the midst of these expectations, Jeff. Davis should be quietly brought up and lashed alongside our boat, before anybody but the crew was awake, and while we were peacefully steaming up to Savannah, was quite enough to move our special wonder.