the line is now vacant, or is it merely a transfer of a part of Heth's division from the entrenchments near the lead-works to the new works of the enemy?

A. A. HUMPHREYS,

Major-General and Chief of Staff.

[Indorsement.]

Respectfully referred to General Crawford with original. Please return both.

G. K. WARREN,

Major-General.

JULY 27, 1864-4.30 p. m.

General HUMPHREYS:

I have referred your dispatch just received to General Crawford.

G. K. WARREN,

Major-General.

HEADQUARTERS ARMY OF THE POTOMAC,
July 27, 1864. (Received 7.40 p. m.)

Lieutenant-Colonel LOCKE,

Assistant Adjutant-General:

Can I have a detail of 2,000 men, to report at General Cutler's headquarters at 4 a. m. to the engineer officers present, 600 shovels, 400 picks, 100 axes? It would be preferable to have all the details from each division consolidated and a commanding officer designated.

G. H. MENDELL,

Captain of Engineers.

JULY 27, 1864-7.50 P. M.

Captain MENDELL:

Having rearranged my lines in order that they may be held with a smaller force, I have so much work to do that I am unable, at the best, to furnish more than 1,000 men for you.

G. K. WARREN.

HEADQUARTERS FIFTH ARMY CORPS,
July 27, 1864-9.40 p. m.

Major-General HUMPHREYS,

Chief of Staff:

In answer to your dispatch of 4.30 p. m. General Crawford sends me the following:

HEADQUARTERS THIRD DIVISION, FIFTH ARMY CORPS,
[July 27, 1864]-9.20 p. m.

General WARREN:

I returned from my lines late this afternoon. The officer on picket, and who has been on continuous duty for over ten days, reports from his daily examination that he can see the engines and recognize the distinct trains passing near the woods east of the lead-works. By night he sees the smoke-stacks of ;the engines and hears distinctly the trains passing. The enemy's works near the woods in the vicinity of the lead-works are distinctly visible. Their occupation yesterday morning was seen by myself and recognized by their tents, men passing, &c. From what has been