Abstract from return of the Army of the Potomac, commanded by Major General George B. McClellan, U. S. Army, for the month of February, 1862. .

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Present for duty .

Commands Stations Officers Men

General staff .. 74 ..

Alexandria Camp Williams, 497 11,997

Division Va.

Banks' Charlestown, 565 13,671

division Va.

Blenker's Hunter's 411 7,985

division Chapel, Va.

Casey's Washington, D. 180 4,109

division C.

Dix's division Baltimore, Md. 500 10,544

Heitzelman's Fort Lyon, Va. 442 9,877

division

Hooker's Lower Potomac, 387 10,417

division Md

Keyes' Washington, D. 450 10,914

division C.

McCall's Camp 415 10,701

division Peirpoint, Va.

McDowell's Arlington, Va. 524 11,230

division

Porter's (F. Hall's Hill, 553 12,995

J.) division Va.

Dedgwick's Harper's 367 9,104

division Ferry, Va.

Landers' Paw Paw 482 11,387

division Tunnel, Va.

Smith's Camp Griffin, 457 10,138

division Va.

Summer's Camp 383 7,520

division California, Va

Provisional Washington, D. 73 1,337

Brigade C.

City Guard and Washington, D. 229 4,675

detachments C.

Railway Annapolis 135 2,805

Brigade Junction, Md.

Engineer Sandy Hook, 2 197

Battalion Md.

Engineer Washington, D. 52 1,402

Brigade, C.

volunteers

Cavalry, Near 79 2,016

regular Washington, D.

C.

Cavalry, Washington, D. 288 5,786

volunteer C.

Reserve Camp Ducan, D. 76 1,726

artillery C.

Field works About 237 4,869

and artillery Washington, D.

C.

Fort Fort 6 154

Washington Washington, Md

Total .. 7,864 177,556

Piece of .

artillery

Commands Stations Aggregate Heavy Field

present and

absent

General .. 74 .. ..

staff

Alexandria Camp Williams, 14,487 .. 18

Division Va.

Banks' Charlestown, 16,801 .. 32

division Va.

Blenker's Hunter's 10,455 .. 18

division Chapel, Va.

Casey's Washington, D. 5,325 .. ..

division C.

Dix's Baltimore, Md. 13,430 .. 20

division

Heitzelman's Fort Lyon, Va. 12,151 29 18

division

Hooker's Lower Potomac, 12,845 .. 18

division Md

Keyes' Washington, D. 12,800 .. 16

division C.

McCall's Camp Peirpoint, 12,722 .. 16

division Va.

McDowell's Arlington, Va. 13,732 34 53

division

Porter's (F. Hall's Hill, 15,596 .. 24

J.) division Va.

Dedgwick's Harper's Ferry, 11,470 .. 18

division Va.

Landers' Paw Paw Tunnel, 15,731 .. 26

division Va.

Smith's Camp Griffin, 13,248 .. 18

division Va.

Summer's Camp 9,859 6 12

division California, Va

Provisional Washington, D. 1,617 .. ..

Brigade C.

City Guard Washington, D. 6,124 .. 1

and C.

detachments

Railway Annapolis 3,317 .. ..

Brigade Junction, Md.

Engineer Sandy Hook, Md. 270 .. ..

Battalion

Engineer Washington, D. 1,730 .. ..

Brigade, C.

volunteers

Cavalry, Near 2,788 .. ..

regular Washington, D.

C.

Cavalry, Washington, D. 7,133 .. ..

volunteer C.

Reserve Camp Ducan, D. 2,233 .. 90

artillery C.

Field works About 5,882 .. 67

and Washington, D.

artillery C.

Fort Fort 198 .. ..

Washington Washington, Md

Total .. 222,018 69 465

POOLESVILLE, MD., March 1, 1862.

Major-General BANKS,

Harper's Feery:

The enemy unusually demonstrative on their line of pickets to-day, exhibiting both infantry and cavalry, also six baggage wagons opposite Moson's Island. They shelled us from their position opposite Edwards Ferry and at Ball's Bluff this afternoon, but discontinued as soon as we replied. There were smokes in their camps. These demonstrations may be for a blind, but I am unable to assert it positively.

N. J. T. DANA,

Brigadier-General.

HEADQUARTERS ARMY OF THE POTOMAC, Washington, March 2, 1862.

S. F. BARSTOW,
Assistant Adjutant-General, Camp Chase, Paw Paw:

During the illness of General Lander let the next officer in rank assume command and move the available troops on Martinsburg via Hedgesville, covering construction of roads as troops advance. General Williams will be in Martinsburg with some 5,000 men. It is desirable to have the troops of General Lander's command in Martinsburg with least possible delay. Sufficient guards must be left to cover the railroad.

GEO. B. McCLELLAN,

Major-General, Commanding.