General summary of Casualties in the Union Forces, &c.-Continued.

DECEMBER.

Killed. Wounded. Captain or miss.

Command. Officers. Men. Officers. Men. Officers. Men. Aggregate.

ARMY OF THE POTOMAC.

Major General GEORGE

G. MEADE

Second Army Corps - 4 1 26 - 49 80

(Humphreys)

Fifth Army Corps - 8 - 5 3 121 137

(Warren)

Sixth Army Corps - - - 6 - - 6

(Wright)

Ninth Army Corps 1 17 3 89 - 4 114

(Parke)

Cavalry (Gregg) 2 16 3 62 3 53 139

Total Army of the 3 45 7 188 6 227 476

Potomac

ARMY OF THE JAMES

Major General

BENJAMIN F. BUTLER

Twenty-fourth Army 5 - 22 - 1 29

Corps (Ord)

Twenty-fifth Army Corps - 2 - 15 - 6 23

(Weitzel)

Cavalry (Kautz) 1 9 4 40 - 23 77

Defenses of Bermuda - - - 2 - 6 8

Hundred (Ferrero)

Total Army of the James 2 16 4 79 - 36 137

Grand total. 5 61 11 267 6 263 613

Numbers 8. Reports of Major Nathaniel Michler, Corps of Engineers, U. S. Army, Acting Chief Engineer, Army of the Potomac, of operations September 17-November 14.

HDQRS. ARMY OF THE POTOMAC, ENGINEER DEPT.,
September 24, 1864.

COLONEL: I have the honor to submit for the information of the lieutenant-general commanding the Armies of the United States the following report of the engineering operations under my charge since the date of previous report of the 17th instant:

At the commencement of the present week my attention was particularly directed, under instructions of the commanding general of this army, to the examination of the country from the Blackwater Swamp, near Prince George Court-House, north toward Bailey's Creek, in reference to a defensive line. A strong position was found and suitable localities selected for field-works. In this reconnaissance I was accompanied by Captain Harwood and Lieutenant Lydecker; the former officer, assisted by the latter, was then directed to superintend the tracing and profiling of a redoubt and battery near Prince George Court-House and the line of infantry parapet connecting them. This work was performed by C Company, U. S. Engineer Battalion. The battery was finished and the redoubt fairly commenced, when, upon receipt of orders this evening to suspend work upon it for the present, the command was withdrawn. Upon a subsequent day I was directed to confer with General Benham, in command of the immediate defenses of City Point, in reference to lines selected by him, extending from Bailey's Creek in a northerly direction to the Appomattox, to cover the latter place. The vicinity of the crossing of this creek, near the Old