Rumored Insubordination in Banke's Army.
Mobile March 19
--The Appeal of the 17th, says: ‘"Reports this morning from Port Hudson represents that a serious outbreak had occurred in the Yankee army, which if correct probably accounts for there iregrade movement of Bank's army.
report that several Yankee regiments laid down their arms, and were sent back.
Another rumor was that two regiments of Gen. Rust's command had driven back a greatly superior force of the enemy."’