HEADQUARTERS SECOND DIVISION, CAVALRY CORPS, July 16, 1864.

Brigadier-General DAVIES,
Commanding First Brigadier, Second Cav. Div.:

GENERAL: In compliance with instructions from headquarters Army of the Potomac, you will with your brigade picket and scout on the left of the army in the following manner: You will picket about the same line on the left that Colonel Bryan picketed, connecting with the infantry picket on your right, and extending around the plank road near Gary's Church. You will patrol well down the plan road and well down the old Norfolk road and to Lee's Mill, and will also patrol across from the plank road to the Prince George Court-House road. You will report everything that occurs to the headquarters Army of the Potomac, as well as to Major-General Warren, commanding Fifth Army Corps, on the left of the army.

Very respectfully, your obedient servant,

D. McM. GREGG,

Commanding Second Cavalry Division.

HEADQUARTERS PROVISIONAL BRIGADE, July 16, 1864.

Major General A. A. HUMPHREYS,
Chief of Staff:

GENERAL: The negro who has given us valuable information, of whom I spoke, I send by the bearer of this. He has some information, and as General Meade told me he would have him paid should he obtain any valuable information I send him to you. He says the enemy are about to advance their lines on the Gurley house and Gary's Church road. As I cannot have my command relieved before 6 p.m., and Colonel Devin says it took him five hours to come here, with this information from the negro, and the deserter yesterday to the same effect, I will not leave Colonel Devin's camp till early to-morrow morning, unless I receive further orders.

Very respectfully,

T. M. BRYAN, jr.,

Colonel, Commanding.

HDQRS. DEPT. OF VIRGINIA AND NORTH CAROLINA,
In the Field, July 16, 1864.

Lieutenant-Colonel FULLER,

Chief Q. M., Bermuda Hundred:

I wish a light barge, suitable for a wharf, for military purposes of the highest importance; ordered by General Grant. Can you furnish one to-morrow? Please answer.

PETER S. MICHIE,

First Lieutenant, U. S. Engineers.

HDQRS. DEPT. OF VIRGINIA AND NORTH CAROLINA,
In the Field, July 16, 1864.

General BROOKS:

(To be sent to Captain Smith, in command of the navy on James River.)

Communication to Mallory sent. No answer yet. Flag of truce now out.

BENJ. F. BULTER,

Major-General, Commanding.