FORT MONROE, July 1, 1863.

Colonel VAN BUREN, White House:

General Halleck, with the assent of General Dix, will permit the One hundred and fifty-eighth, One hundred and sixty-eighth, One hundred and seventy-first, and One hundred and seventy-eighth Pennsylvania Volunteers to go forthwith to Pennsylvania, on condition that they will serve until the rebels are driven from that State. If yes, will General Dix order the three regiments at the White House to return here immediately? Answer.

HENRY M. NAGLEE,

Brigadier- General.

U. S. FLAGSHIP MINNESOTA, Off Newport News, Va., July 1, 1863-10 p. m.

Major General JOHN A. DIX, U. S. Army,

Commanding Seventh Army Corps, White House, Va.:

GENERAL: I am most desirous to aid you in every way. Last evening the Shokokon arrived, disabled, from the blockade. She has just come down from the navy-yard, and though with but one rudder, I hurry her off, to take to the White House fleet Captain Crosby, and officer in whose professional parts great confidence may be placed. My gunboats are all away, as you are advised, on duty occasioned by the present emergency, and I am left with but one tug for picket and other duties, and the transport Mount Washington for the mail boat, and all dispatch duties incidental to the demands of the hour. The public situation and my instructions from Washington require my presence here, to comply with expected orders, or I should now be with you. Recent rains must unfortunately retard your operations. Renewing my best wishes for your success, I have the honor to be general, respectfully, yours,

S. PHILLIPS LEE,

Actg. Rear-Admiral, Comdg. N. Atlantic Blockading Squadron.

SPECIAL ORDERS,
WAR DEPARTMENT, ADJT. GENERAL 'S OFFICE

Numbers 290.
Washington, July 1, 1863.

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VI. Brigadier General A. N. Duffie, U. S. Volunteers, having reported at the Adjutant-General's Office, in accordance with telegraphic order from HEADQUARTERS Army of the Potomac, will await further orders in this city.

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By order of the Secretary of War:

E. D. TOWNSEND,
Assistant Adjutant-General.

GENERAL ORDERS,
HDQRS. MID. DEPT., EIGHTH ARMY CORPS,

Numbers 41.
Baltimore, Md., July 1, 1863.

During the past six months great numbers of letters have been intercepted on their way to and from persons within the enemy's lines