FRONT ROYAL, June 9, 1862.

I am directed to inform you that it is the order of the President of the United States that Major-General Fremont shall hold the valley in connection with Major-General Banks, and that the forces belonging to the Department of the Rappahannock be immediately marched on Richmond to co-operate with Major-General McClellan.

It has been, and is still, no doubt much desired that Jackson shall be made to pay for his late dash down the valley, and if there is a reasonable expectation of his being caught no doubt the order for the advance on Richmond would be suspended. But it is not clear from your report what is the position of your command at this time, and it is inferred that the force at Port Republic is small, as well as the party expected to be at Waynesborough. If this is so, the general thinks you have forgotten your instructions not to move your force so that the several parts should not be in supporting distance of each other. If, however, you are in hot pursuit and about to fall on the enemy, and can do so with reasonable chance of success without relying on the troops at Front Royal, who are too far in rear to support you in your extended movements, the general is not disposed to recall you; but if you have only detachments thrown out in front your command should not be placed in such positions as to prevent compliance with the President's general plan of operations, and you should at once call in the advance parties and move upon Fredericksburg, there to be refitted for the march to Richmond.

The general desires an immediate reply.

ED. SCHRIVER,

Colonel, Chief of Staff.

Major-General SHIELDS, Commanding Division.

Numbers 53. Return of Casualties in the Union forces in the engagement at Port Republic.

[Compiled from nominal lists of casualties, returns, &c.]

Killed. Wounded.

Command. Officers. Enlisted Officers. Enlisted

men. men.

General staff.

--------

--------

1

-------

84th Pennsylvania

--------

1

--------

10

Infantry.

110th Pennsylvania

--------

1

--------

10

Infantry.

1st West Virginia

Cavalry*

--------

--------

--------

-------

(detached).

1st West Virginia 1

--------

3 15

Infantry.

1st Ohio Light

Artillery, Battery

--------

2

--------

4

H.

1st Ohio Light

Artillery, Battery

--------

1

--------

4

L.

5th Ohio Infantry. 2 2

--------

63

7th Ohio Infantry.

--------

10 3 52

29th Ohio 1 16 5 36

Infantry.

66th Ohio

--------

20 5 70

Infantry.

7th Indiana 1 8 4 103

Infantry.

4th U. S.

Artillery, Battery

--------

1

--------

5

E.

Total. 5 62 21 372

CONTINUATION:

Captured or missing.

Command. Officers. Enlisted Aggregate Officers

men. killed.

General staff.

--------

--------

1

84th Pennsylvania

--------

21 32

Infantry.

110th Pennsylvania

--------

15 26

Infantry.

1st West Virginia

Cavalry*

--------

--------

--------

(detached).

1st West Virginia

--------

48 67 Lieute-nant

Infantry. Barnes.

1st Ohio Light

Artillery, Battery

--------

5 11

H.

1st Ohio Light

Artillery, Battery 1 5 11

L.

5th Ohio Infantry. 6 191 264 Lieute-nants

Graham

and

Smith.

7th Ohio Infantry.

--------

10 75

29th Ohio 10 104 172 Captain

Infantry. Luce.

66th Ohio 6 104 205

Infantry.

7th Indiana 1 28 145 Captain

Infantry. Waterman

4th U. S.

Artillery, Battery

--------

3 9

E.

Total. 24 534 1,018

---------------

*No loss reported.

---------------