HEADQUARTERS, Harper's Ferry, May 20, 1864.

Major General F. SIGEL,
Cedar Creek:

The Remount Camp is broken up, by order from the Secretary of War, and all the men sent last night to Washington. I have retained, under the same order, all mounted men,and propose to send them to-morrow morning, or as soon as possible, directly to you. There are about 500 well mounted detachments from the Twentieth Pennsylvania and First New York (Lincoln) Cavalry, under command of Lieutenant-Colonel Middleton. Twentieth Pennsylvania Cavalry. Shall I send them via Winchester to Cedar Creek? Our pontoons not yet here, and no bridge to Maryland Heights.

MAX WEBER,

Brigadier-General.

CUMBERLAND, May 20, 1864-10 a.m.

Brigadier-General WEBER,

Harper's Ferry:

What news have you this a.m.? How are you getting along with pontoon; when will it be laid? When will the railroad bridge be repaired? Please ask Mr. Quincy. Will you please have my telegrams left on your table sent me; also copies of those sent by me while I was at the Ferry.

B. F. KELLEY,

Brigadier-General.

HARPER'S FERRY, May 20, 1864.

Brigadier-General KELLEY:

I sent you a report by telegraph and will report each day. Our pontoons have not arrived. The railroad bridge is being rapidly constructed. They hope by Monday to be all right. I will send you the copies of telegrams by mail to-morrow.

MAX WEBER,

Brigadier-General.

HEADQUARTERS, Harper's Ferry, May 20, 1864.

Brigadier General B. F. KELLEY,
Cumberland:

The following troops are at Harper's Ferry: Fifth New York Heavy Artillery, three batteries of light artillery, a small detachment of Twelfth Pennsylvania Cavalry, and one company of engineers. There are at Martinsburg: One hundred and fifty-fifth Ohio National Guard Infantry, 800; One hundred and thirty-fifth Ohio National Guard Infantry, 309; different detachments infantry, 68; New York Battery, 200; total, 1481.

MAX WEBER,

Brigadier-General, Commanding.