From Northern Virginia.
Orange C. H., March
--Parties just from the Yankee lines report that the enemy are scouting actively in the direction of Fredericksburg, and that Grant will advance as soon as the old troops return from their furloughs and troops can be brought from the West, which will be about the 18th of April. A great many deserters from the Yankee army are in the rear of the Yankee lines.
Gov. Vance reviewed all the North Carolina troops, Ewell's corps, on Monday, and addressed an audience estimated from five to ten thousand.
He will review the North Carolina troops of Hill's corps and address them to-morrow.
From the Southwest.
Dalton, March 29.
--Our last advices from the front report the enemy quiet.
Wheeler's cavalry are vigilantly watching the denouement of the late Yankee prospective campaign.
Gen. Johnston is, no doubt, fully advised of their movements.
The story of Sherman's having taken up his headquarters at Nashville is regarded as a blind to control Grant's "On to Richmond," and to enable Thomas to hold Johnston in check. 