ational line were the corps of Hooker and Sumner.
In the advance, and near the Antietam, General Richardson's division of Sumner's corps was posted.
On a line with this was Sykes's (regular) division of Porter's corps.
Farther down the stream was Burnside's corps.
In front of Sumner and Hooker were batteries of 24-pounder Parrott guns.
Franklin's corps and Couch's division were farther down the valley, and the divisions of Morrell and Humphrey, of Porter's corps, were approaching from Frederick.
A detachment of the signal corps, under Major Myer, was on a spur of South Mountain.
As McClellan prudently hesitated to attack, the Confederates put him on the defensive by opening an artillery fire upon the Nationals at dawn （Sept. 16, 1862). He was ready for response in the course of the afternoon, when Hooker crossed the Antietam with a part of his corps, commanded by Generals Ricketts, Meade, and Doubleday. Hooker at once attacked the Confederate left, commanded by Stonewall Jack
followed, and between the 4th and 7th crossed the Potomac at the Point of Rocks, and encamped not far from the city of Frederick, on the Monocacy River.
There General Lee, on the 8th, issued a stirring appeal in the form of a proclamation to the pe troops at Washington, and with about 90,000 men crossed the Potomac above Washington and advanced cautiously towyards Frederick.
At McClellan's approach Lee withdrew.
There the plan for seizing Washington was discovered.
It was to take possessishing on to Hagerstown, July 6, 1864, levied a contribution on the inhabitants there of $20,000. Then he hastened on to Frederick, on the Monocacy River, and threatened both Baltimore and Washington.
The raid had a twofold purpose—to draw troops f of the Monocacy for the concentration of his forces.
On the 9th he fought the hosts of Early desperately not far from Frederick.
He had been joined by a portion of Rickett's brigade, from the advance of the 6th Corps.
This handful of men, after