uld be taken.
McClellan's orders and correspondence show that he expected a battle at Boonsboro‘, but not at South Mountain or east of it. Pleasonton had found a rear-guard at Turner's Gap, but the support of a single brigade of infantry was assumed to be enough to enable his cavalry to clear the way. Pleasonton asked for one brigade of infantry to report to him for the purpose stated, and I detailed the brigade under command of Colonel E. P. Scammon.
At 6 o'clock in the morning of Sunday, September 14th, he marched out of camp at Middletown.
His brigade consisted of the 12th, 23d, and 30th Ohio regiments; that of Crook, which was left in camp, was made up of the 11th, 28th, and 36th Ohio, and each brigade was nearly fifteen hundred strong.
Two batteries of artillery and a squadron of cavalry also belonged to the division.
I was myself on the road when Scammon marched out, and was riding forward with him to learn how Pleasonton intended to use the troops, when, just as we crosse