SEPTEMBER 3-20, 1862.-The Maryland Campaign.

SUMMARY OF THE PRINCIPAL EVENTS.

September 3, 1862.-The Army of Northern Virginia marches toward Leesburg, Va.

Occupation of Winchester, Va., by the Confederate forces.

Skirmish near Martinsburg, W. VA.

Brigadier General Alpheus S. Williams, U. S. Army, assumes command of the Second Corps, Army of Virginia.

Major General Jesse L. Reno, U. S. Army, assumes command of the Ninth Army Corps.

3-4, 1862.-Skirmishes at Falls Church, Va.

Skirmish at Bunker Hill, W. Va.

Skirmich at Edwards Ferry, Md.

Reconnaissances from Harper's Ferry to Lovettsville and Charlestown, W. Va.

Skirmish at Monacacy Aqueduct, Md.

4-5, 1862.-Skirmishes at Poolesville, Md.

Skirmishes at Point of Rocks and Berlin, Md.

4-7, 1862.-The Army of Northern Virginia crosses the Potomac by the fords near Leesburg.

5, 1862.-The armies of the Potomac and of Virginia being consolidated, Major General John Pope, U. S. Army, is relieved, and directed to report for orders to the Secretary of War.

7, 1862.-Major General Joseph Hooker, U. S. Army, assumes command of the Third Corps, Army of Virginia, vice Major General Irvin McDowell. Skirmish at Darkesville, W. Va.

Skirmish at Point of Rocks, Md.

8, 1862.-Major General Nathaniel P. Banks, U. S. Army, assumes command of the Defenses of Washington.

Skirmish at Poolesville, Md.

9, 1862.-Skirmishes at Monocacy Church and Barnesville, Md.

10, 1962.-Skirmish near Boonsborough, Md. Skirmish near Frederick, Md.

10-11, 1862.-Skirmish at Sugar Loaf Mountain, Md.

11, 1862.-Skirmish between Williamsport, Md., and Martinsburg, W. Va.

12, 1862.-The First, Second, and Third Corps, Army of

Virginia, designated respectively as the Eleventh, Twelfth, and First Army Corps. Skirmishes at Frederick, Md.

13-15, 1862.-Siege and capture of Harper's Ferry, W. Va.,

including actions on Maryland and Bolivar Heights.

13, 1862.-Major General John Sedgwick, U. S. Army, assigned to command of the Second Corps, Army of Virginia.

Skirmishes at Catoctin Mountain, Middletown, Jefferson, and South Mountain, Md.

14, 1862.-Battles of South Mountain (Boonsborough, Boonsborough Gap, or Turner's Pass) and Crampton's Pass, Md.

Skirmish near Petersville, Md.

Brigadier General Jacob D. Cox, U. S. Army, assumes command

of the Ninth Army Corps

15, 1862.-Major General Joseph K. F. Mansfield, U. S. Army, assumes command of the Second Corps, Army of Virginia.

Skirmish at Boonsborough, Md.

Skirmish on Antietam Creek, near Keedysville, Md.

16-17, 1862.-Battle of Antietam, or Sharpsburg, Md.