...ure of driving from before Mobile. He then intended to proceed to Pensacola and raise the siege in that quarter. There is no doubt that, had he succeeded in finishing his four iron-clads in time, Farragut would have either been destroyed or the siege of Mobile raised. The account of the sinking of the Southfield by the ram Albemarle in the Sounds of North Carolina, on the 17th of April, and the st...