Colonel Lyons.
Fort Donelson, May 29, 1863.—The Ewing has finally got here and will go down about Sunday. We get rumors of disaster to Grant at Vicksburg, but refuse to believe it yet. I learn that some of the troops at Fort Heiman have been ordered down there. If we were in that department now we should probably be sent, too. We may be as it is. They have had bloody work down there, and I tremble for the old Eighth where I have so many good friends. We get reports that Bragg’s army has disappeared from Rosecrans’ front, but know nothing definite.