A Valiant Feat.Our readers will remember that someweeks ago a large lot of cattle that were being driven from Yankeedom to pro* vision tho forces at Knoxville, was cap. turod by some of Gen. Longatreet’a men, and tho whole, about 1,200 in number, turned over to the Confeder*. ace commissary. We have just learned tho particulars connected with this important capture, and as they have never been published, deem it not too late yet to place upon record the man* nor in which the Yankee starvelings at Knoxville were cheated out of such a vast quantity of moat.Tho drove had reached a point about nine miles from Knoxville, and wae under the escort of three companies of the Indiana six months men. A party of Gen, Longstroot's scouts, eleven in number, discovered the prize, and, not* withstanding the disparity of numbers, at once determined to secure it if pos* sible. Placing themselves in ambush at a favorable point, at the propor mo* uent they delivered a the from their carbines, which disabled some eight or ten of the Yankees. Immediately drawing their revolvers, they made a charge, tiring as they run. So dismay* ed were the Yanks that all broke and