HEADQUARTERS FIFTH ARMY CORPS, September 15, 1864.

General HUMPHREYS,
Chief of Staff:

I send the following, just received:

HALIFAX ROAD SIGNAL STATION-2.20 p.m.

Lieutenant-General LOCKE,

Assistant Adjutant-General:

About a squadron of cavalry, followed by four large regiments of infantry well closed up and twelve pieces of artillery, have just passed a point on what I suppose to be the Boydton plank road half a mile west of lead-works, moving toward our left. The infantry was moving at a double-quick.

CHARLES L. DAVIS,

Captain, Signal Corps, U. S. Army.

G. K. WARREN,

Major-General.

HEADQUARTERS FIFTH ARMY CORPS, September 15, 1864.

Major-General HUMPHREYS:

Following just received:

HALIFAX ROAD SIGNAL STATION-2.30 p.m.

Lieutenant-Colonel LOCKE:

Six more pieces of artillery and ten regiments of infantry, counted by their colors, have passed the same point indicated in my last report, and the men in the first line of works that I see from here along the Boydton plank road have struck their tents and are preparing to move.

CHARLES L. DAVIS,
Captain, Signal Officer.

G. K. WARREN,

Major-General.

PLANK ROAD SIGNAL STATION, September 15, 1864-5 p.m.

Major FISHER:

A column of infantry has just passed westward on road leading from large fort; were eighteen minutes in passing. They first appeared on road in vicinity of lead-works and rear of Weldon railroad.

H. W. FULTON,

Sergeant.

SEPTEMBER 15, 1864-5.30 p.m.

Major FISHER:

All quiet along the enemy's lines in view. About 500 rebel infantry passed to our left along road to our right of Petersburg at 1.30 p.m. Their equipments, &c., could not be discerned by reason of a smoky atmosphere.

I. S. LYON,

Lieutenant and Signal Officer.