HDQRS. CAVALRY CORPS, ARMY OF THE POTOMAC, July 28, 1864-12 m.

Brigadier-General GREGG,
Commanding Second Cavalry Division:

GENERAL: General Gibbon has relieved the division of General Torbert. I shall send Torbert down on the open plain in front of where your headquarters were this morning. I want you to move your division back and form it on the right of General Torbert, except your picket-line, which will remain, and the commanding officer of it will report to General Gibbon, who will direct it to fall back in case he should fall back. Let one of your staff officers remain with General Gibbon.

Very respectfully,

P. H. SHERIDAN,

Major-General, Commanding.

HEADQUARTERS THIRD DIVISION, CAVALRY CORPS, July 28, 1864.

Brigadier General GEORGE H. CHAPMAN,
Commanding Second Brigade:

GENERAL: You will send one regiment to Cocke's Mill to-morrow morning at 6 o'clock, to relieve the Eighteenth Pennsylvania Cavalry, Major Phillips, now on picket duty there, who will, after being relieved, proceed to the left of the army, to report to Brigadier General J. B. McIntosh.

By command of Brigadier-General Wilson:

L. SIEBERT,

Assistant Adjutant-General.

HDQRS. FIRST Brigadier, THIRD DIVISION, CAVALRY CORPS,
July 28, 1864-6 p.m.

Major General A. A. HUMPRHEYS,

Chief of Staff:

GENERAL: I have the honor to report that everything is quiet on my lines. I have sent our scouting parties toward Reams' Station. The scouts could not get beyond two or three miles from the church on the Reams' Station road. From all the information I can collect, I can hear of no movements of troops on our left.

I am, genera, very respectfully,

J. B. McINTOSH,

Brigadier-General.

JULY 28, 1864.

Lieutenant-General GRANT:

Allow me to submit to your consideration a thought which has struck me. The rebels have fortified Howlett's house bluff with nineteen guns and a very strong work. Trent's Reach is so shallow that our iron-clads cannot get up without great labor in dredging the channels. Now, what hinders us from turning the Howlett house battery by taking the hint from that Dutchamn and cut a canal at Dutch Gap? It is but