SANDY HOOK, July 14, 1863-8. 30 p. m.

General WARREN,

Chief Engineer, Headquarters Army of the Potomac:

Captain [Channing] Clapp, General Benham's assistant adjutant-general, telegraphs me that no order had been received from you at 5. 30 p. m. to send bridge material.

I. SPAULDING,

Lieutenant-Colonel of Volunteer Engineers.

HEADQUARTERS Cavalry BRIGADE, Hagerstown, Md., July 14, 1863.

Brigadier General S. WILLIAMS,
Assistant Adjutant-General, Army of the Potomac:

GENERAL: I have the honor to report that, in obedience to orders from Brigadier-General Gregg, commanding Second Division, Cavalry Corps, I proceeded to Chambersburg, Pa., for the purpose of assuming command of the First New York and Twelfth Pennsylvania Cavalry, doing duty in that vicinity, and removing them to the headquarters of the Second Division, Cavalry Corps, Army of the Potomac. While at Chambersburg, and on the evening of the 12th instant, at 10 o'clock, I received orders from Major-General Couch, whose headquarters are at that place, to take command of that portion of Major-General Milroy's division that were in Pennsylvania, at and about Chambersburg, Loudon, and Greencastle, and march the same to the Army of the Potomac. In obedience therewith, I had said force concentrated and moved to this place, where I arrived this evening. Finding the position of the Army of the Potomac changed, I deemed it advisable to await at his point further orders as to my advance, which I now respectfully ask. With this object in view, I have taken the liberty of dispatching to your headquarters Lieutenant Watkins, of the First New York Cavalry. I beg to submit the following statement, exhibiting the character and strength of the command, viz:

Command Commissioned Enlisted Commanding

officers men for officers

duty

Detachment 1st 1 25 Lieutenant

Virginia Volunteer Harris

Artillery

12th Virginia 21 433 Colonel Klunk

Volunteer Infantry

116th Ohio 19 397 Colonel

Volunteer Infantry Washburn

122nd Ohio 3 94 Captain Sells

Volunteer Infantry

123rd Ohio 3 174 Captain Kellogg

Volunteer Infantry

18th Connecticut 7 159 Captain

Volunteer Infantry Mathewson

5th Maryland 2 80 Captain

Volunteer Infantry Farquberg

87th Pennsylvania 9 223 Major Ruhl

Volunteer Infantry

1st New York 12 300 Major Adams

Cavalry

12th Pennsylvania 16 275 Major Titus

Cavalry

1st and 3rd 2 24 Lieutenant

Virginia Cavalry, Clark

detachments

TOTAL 95 2, 184

I have the honor to be, general, your obedient servant,

AND'W T. McREYNOLDS,

Colonel First New York Cavalry, Commanding.