April 12-14 Exp. from Point Lookout to Westmoreland County UNITED STATES---Cavalry (Detachment); 36th Colored Infantry; 3 Gunboats Potomac Flotilla.

May 11-14 Exp. from Point Lookout to the Rappahannock River UNITED STATES--36th Colored Infantry and Potomac Flotilla.

June 10 Skirmish, Point of Rocks UNITED STATES--2d Colored Cavalry. Union loss, 2 killed.

Juno 11-21 Exp. from Point Lookout to Pope's Creek.. UNITED STATES--2d and 5th Cavalry (Detachments); 36th Colored Infantry and Sailors Potomac Flotilla.

July 5 Skirmish, Point of Rocks ILLINOIS--8th Cavalry.

July 5 Skirmish, Solomon's Gap NEW YORK--21st Cavalry.

July 5 Skirmish. Noland's Ferry ILLINOIS--8th Cavalry.

July 5 Skirmish, Keedysville MARYLAND---1st Potomac Home Brigade, Cavalry.

July 5 Skirmish, Hagerstown UNITED STATES--McLean's Detachment Cavalry, Union loss, 2 killed, 6 wounded, 25 missing. Total, 33.

July 6 Skirmish. Hagerstown PENNSYLVANIA--22d Cavalry.

July 6-7 Action, Maryland Heights ILLINOIS--23d Infantry. OHIO--135th, 160th and 161st Infantry. PENNSYLVANIA--22d Cavalry. WEST VIRGINIA--10th Infantry. Union loss, 6 killed, 18 wounded, 15 missing. Total, 39.

July 7 Skirmish, Middletown ILLINOIS--8th Cavalry. MARYLAND---Baltimore Battery Light Arty. (Section). Union loss, 3 killed, 7 wounded. Total, 10,

July 7 Skirmish, Solomon's Gap ILLINOIS--8th Cavalry. MARYLAND---Baltimore Battery Light Arty.; 3d Potomac Home Brigade Infantry. Union loss, 5 killed, 20 wounded. Total, 25.

July 7 Action Hager's or Catoctin Mountain MARYLAND--Baltimore Battery Light Arty.

July 7 Skirmish, Brownsville NEW YORK--21st Cavalry.

July 7-8 Skirmishes, Frederick ILLINOIS--8th Cavalry. MARYLAND----Baltimore Battery Light Arty.; 3d Potomac Home Brigade Infantry. Union loss, 2 killed, 7 wounded. Total, 9.

July 8 Skirmish, Antietam Bridge PENNSYLVANIA--22d Cavalry.

July 8 Skirmish, Frederick ILLINOIS---8th Cavalry; Detachment of Mounted Infantry of various Regiments under Captain Lieb, U.S. A.; Detachment of Cavalry of various Regiments under Major Wells; 1st N.Y. Veteran Cavalry. MARYLAND --Baltimore Battery Light

Arty. VIRGINIA--Loudoun Indpt. RanKers.

July 8 Skirmish, Sandy Hook WEST VIRGINIA--11th Infantry.

July 9 Battle of Monocacy ILLINOIS---8th Cavalry. MARYLAND----Baltimore Battery Light Arty.; 1st and 3d Potomac Home Brigade and 11th Infantry. NEW JERSEY--14th Infantry. NEW YORK--9th Heavy Arty.; 106th and 151st Infantry. PENNSYLVANIA--87th and 138th

Infantry. OHIO--110th, 122d. 126th, 144th, 149th and 159th Infantry. VERMONT--10th Infantry. VIRGINIA--Loudoun Indpt. Rangers: Detachment of mixed Cavalry. Union loss, 123 killed, 603 wounded, 568 captured and missing. Total, 1,294.

July 9 Skirmish, Urbana ILLINOIS--8th Cavalry. Union loss, 1 killed, 5 wounded. Total, 6.

July 9 Skirmish, Rockville Fry's Provisional Cavalry Regiment.

July 10 Skirmish near Monocacy ILLINOIS---8th Cavalry.

July 11 Skirmish, Frederick MARYLAND--1st Potomac Home Brigade Cavalry. NEW YORK--21st Cavalry.

July 12 Action, Poolesville OHIO---6th Cavalry.

July 13 Skirmish, Rockville ILLINOIS--8th Cavalry. MASSACHUSETTS--2d Cavalry. Fry's Provisional Cavalry Regiment.

July 14 Skirmish, Poolesville ILLINOIS---8th Cavalry. MASSACHUSETTS--2d Cavalry Fry's Provisional Cavalry Regiment.

July 18 Skirmish, Cockeysville ILLINOIS---8th Cavalry.

July 18 Action, Percyville WEST VIRGINIA--Battery "E," Light Arty.

July 26 Action, Muddy Branch MICHIGAN--6th Cavalry.

July 29 Skirmish, Clear Springs UNITED STATES---McLean's Detachment Cavalry.

July 29 Action, Hagerstown OHIO--8th Cavalry. PENNSYLVANIA--14th Cavalry. WEST VIRGINIA--1st, 2d and 3d Cavalry. UNITED STATES---Battery "L," 5th Arty.

July 30 Affair, Emmettsburg PENNSYLVANIA--Philadelphia Arty.; Scouts.

July 30 Skirmish, Monocacy Junction ILLINOIS--8th Cavalry.

July 30 Skirmish, Hagerstown MARYLAND---1st Potomac Home Brigade Cavalry.

July 31 Skirmish, Hancock, pursuit of McCausland OHIO---8th Cavalry. PENNSYLVANIA--14th Cavalry. WEST VIRGINIA--1st 2d and 3d Cavalry.

Aug. 1 Attack on Cumberland, Pleasant Hill ILLINOIS---Battery "L,"' 1st Light Arty. OHIO----156th Infantry. WEST VIRGINIA--6th (1 Co.) and 11th (4 Cos.) Infantry. Union loss, 1 killed, 1 wounded. Total, 2.

Aug. 1 Affair, Flintstone Creek WEST VIRGINIA--11th Infantry.

Aug. 2 Skirmish, Oldtown OHIO--153d Infantry. Union loss, 2 killed, 3 wounded, 10 missing. Total, 15.

Aug. 2 Skirmish, Hancock (No Reports.)

Aug. 4 Skirmish, Antietam Ford PENNSYLVANIA--14th Cavalry.

Aug. 5 Skirmishes, Williamsport and Hagerstown. WEST VIRGINIA--1st Cavalry.

Aug. 5 Skirmish, Keedysville MARYLAND---1st Potomac Home Brigade Cavalry

Aug. 11-21 Exp. from Point Lookout to Pope's Creek.. UNITED STATES---2d and 5th Cavalry (Detachments); 36th Colored Infantry.

Aug. 22 Affair, Cove Point MASSACHUSETTS----5th Colored Cavalry.

Aug. 26 Affair, Williamsport NEW YORK--1st (Lincoln) Cavalry. OHIO--8th Cavalry. PENNSYLVANIA--14th and 22d Cavalry. WEST VIRGINIA--1st, 2d and 3d Cavalry. UNITED STATES --Battery "L," 5th Arty.

Sept..13 Skirmish, Sugar Loaf Mt VERMONT--3d Infantry.

Sept. 27-28 Operations in Montgomery County DELAWARE---1st Cavalry. MARYLAND-- Smith's Indpt. Cavalry Company. PENNSYLVANIA--Battery 3d Arty.

Oct. 14 Skirmish, Adamstown WEST VIRGINIA--Mean's and Atwell's Cavalry Companies.