GILLMORE'S HEADQUARTERS, June 13, 1864.

Captain NORTON,

Chief Signal Officer:

At 4.30 this p.m. I discovered a rebel steamer coming down the James. She came to a point between Cox's and Dutch Gap, and from there fired two shots at our gun-boats. Have given full description of her to the admiral.

DANA,

Captain, &c.

BERMUDA, June 13, 1864.

Major-General BUTLER:

I report at Bermuda with my command by order of Brigadier-General Briggs. In my command there is one company for various regiments in the Eighteenth Corps, one company of colored troops, and sixty-eight men for the One hundred and twenty-sixth Ohio Volunteers. The remainder, about 1,000 men, are for the Army of the Potomac.

RICHD. S. THOMPSON,

Major Twelfth New Jersey Volunteers.

[Indorsement.]

I ordered them to Point of Rocks to report to Turner.

J. W.[SHAFFER].

HDQRS. DEPT. OF VIRGINIA AND NORTH CAROLINA, June 13, 1864-7.30 p.m. [Received 7.40 p.m.]

General GILLMORE:

The commanding general directs me to inform you that General Grant's movements are such that may cause Lee to detach a large force from his army and move it to our front. You will, therefore, take all possible precaution against surprise and prepare to resist an attack.

J. W. SHAFFER,
Colonel and Chief of Staff.

JUNE 13, 1864-7.50 p.m.

Colonel SHAFFER,

Chief of Staff:

Dispatch received. Has the commanding general any changes in our usual disposition of forces that he wants ordered?

Q. A. GILLMORE,

Major-General.

JUNE 13, 1864-8.30 p.m. [Received 8.50 p.m.]

General GILLMORE:

The commanding general says that he thinks your present disposition of force is as well as could be made, but would suggest that you arrange the new troops to make them as effective as possible.

J. W. SHAFFER,

Colonel and Chief of Staff.