From Mobile.
Mobile, October 27.
--A flag of truce from New Orleans states that the Fort Morgan prisoners have been sent North, and those from Fort Gaince are still in New Orleans.
Yankee prisoners who had arrived at New Orleans report that the Federals occupy Morgansa in force and are strongly fortifying.
Admiral Porter is to take command of the North Pacific squadron.
Farragut is believed to be in Mobile bay.
Senator Semmes is now addressing the citizens of Mobile on the state of the country.