The inhabitants here inform us that there is a change that the roads here may become absolutely impassable at any time from the middle of this month to the close of December. An unfavorable season may so close us in here that we could move only with a great delay, labor, and difficulty.

I regret to call attention to this subject, but increasing sickness, continually threatening rain, and a possibility of being bound in by impassable roads seems to make it necessary.

I am, sir, with great respect, your obedient servant,

N. P. BANKS,

Major-General, Commanding Division.

P. S.-The forage we now obtain is brought from Frederick, this neighborhood being exhausted as to forage and other supplies. Captain Bingham has addressed a letter to General Van Vliet upon this subject.

Abstract from consolidated morning report of the Army of the Potomac, Major General George B. McClellan, U. S. Army, commanding, for November 12, 1861.

Aggregate present for.

duty, equipped.

Stations. Commands. Infantr Artil Cavalr Aggrega Pie

y lery y te ces

present of

art

ill

ery

Near Muddy Bank's 14,355 374 375 14,882 18

Branch division

Hunter's Blenker's 7,738 302 75 8,354 13

Chapel division

Washington Casey's 6,969 340 152 13,240 --

division

Do... City Guard 1,078 --- 123 1,418 6

(A.

Porter)

Seminary Franklin's 9,411 446 447 11,440 18

division

Fort Lyon Heintzelma 6,929 251 417 10,896 12

n's

division

Near Hooker's 6,775 --- 519 8,342 16

Bladensburg division

Near Keyes' 9,902 249 92 11,062 12

Washington division

Camp McCall's 9,377 395 763 12,391 17

Peirpoint, division.

Va.

Arlington McDowell's 9,615 381 750 11,471 18

division

Hall's Hill Porter's 11,208 406 879 13,948 18

(F. J.)

division

Camp Smith's *9,964 --- *946 13,184 --

Griffin (W. F.)

division

Poolesville Stone's 9,346 360 471 11,639 18

, Md. division

Camp Duncan Artillery --- 996 --- 1,068 42

reserve

(H. J.

Hunt)

Washington Cavalry --- --- 4,755 8,125 --

and Ball's (Stoneman)

Cross-

Roads

Annapolis, Burnside's --- --- --- +5,746 --

Md. command

Cambridge, Camp of --- --- --- 1,228 --

Md. Instructio

n,

(Lockwood)

Fort Garrison --- --- --- ++401 --

Ellsworth

Naval --- --- --- ++143 --

Battery

Miscellane *2,075 2,359 --- 4,847 115

ous * @

Miscellane --- --- --- ++5,469 --

ous

Totals 114,742 6,859 10,764 169,294 323

*"Present for duty."

+No returns; estimated as above on original report.

++"Aggregate strength."

@Forty-eighth of these armament of Fort Washington, Md.

HEADQUARTERS DIVISION, NEAR SENECA, November 13, 1861.

Brigadier General WILLIAMS,

Assistant Adjutant-GEneral:

SIR: I have the honor to inclose a report from Colonel Leonard, commanding at Williamsport, Md., giving information of the force of the