March through Washington--Reporting to Burnside--The Ninth Corps--Burnside's personal qualities--To Leesboro--Straggling--Lee's army at Frederick--Our deliberate advance--Reno at New Market--The march past--Reno and Hayes--Camp gossip--Occupation of Frederick--Affair with Hampton's cavalry--Crossing Catoctin Mountain--The valley and South Mountain--Lee's order found--Division of his army--Jackson at Harper's Ferry--Supporting Pleasonton's reconnoissance--Meeting Colonel Moor--An involuntary warning--Kanawha Division's advance--Opening of the battle--Carrying the mountain crest--The morning fight--Lull at noon--Arrival of supports--Battle renewed--Final success--Death of Reno--Hooker's battle on the right--His report--Burnside's comments--Franklin's engagement at Crampton's Gap. CHAPTER XIV ANTIETAM: PRELIMINARY MOVEMENTS Lee's plan of invasion--Changed by McClellan's advance--The position at Sharpsburg--Our routes of march--At the Antietam--McClellan reconnoitring--Lee striving to concentrate--Our delays--Tuesday's quiet--Hooker's evening march--The Ninth Corps command--Changing our positions--McClellan's plan of battle--Hooker's evening skirmish--Mansfield goes to support Hooker--Confederate positions--Jackson arrives--McLaws and Walker reach the field--Their places. CHAPTER XV ANTIETAM: THE FIGHT ON THE RIGHT Hooker astir early--The field near the Dunker Church--Artillery combat--Positions of Hooker's divisions--Rocky ledges in the woods--Advance of Doubleday through Miller's orchard and garden--Enemy's fire from West Wood--They rush for Gibbon's battery--Repulse--Advance of Patrick's brigade--Fierce fighting along the turnpike--Ricketts's division in the East Wood--Fresh effort of Meade's division in the centre--A lull in the battle--Mansfield's corps reaches the field--Conflicting opinions as to the hour--Mansfield killed--Command devolves on Williams--Advance through East Wood--Hooker wounded--Meade in command of the corps--It withdraws--Greene's division reaches the Dunker Church--Crawford's in the East Wood--Terrible effects on the Confederates--Sumner's corps coming up--Its formation--It moves on the Dunker Church from the east--Divergence of the divisions--Sedgwick's passes to right of Greene--Attacked in flank and broken--Rallying at the Poffenberger hill--Twelfth Corps hanging on near the church--Advance of French's division--Richardson follows later--Bloody Lane reached--The Piper house--Franklin's corps arrives--Charge of Irwin's brigade. CHAPTER XVI ANTIETAM: THE FIGHT ON THE LEFT