General Warren is directed to send his artillery by the road to Armstrong's (these headquarters), where Major Duane will furnish a guide. Your artillery should be at the same point, to follow General Warren's. It should be careful not to obstruct the road so as to interfere with Warren's artillery. It will rejoin you on the Fredericksburg and Spotsylvania Court-House road. You will follow Warren to near Bevery's, in the vicinity of which his attack will be prepared. From Bevery's guide will lead you to the Massaponax Church road, over an open country. Upon this road your attack is to be made. Captain Paine will furnish you a guide. He will be sent you immediately. One of our scouts reported that two regiments of the enemy's cavalry were at F. Anderson's to-day, 2 1/2 miles from Massaponax Church. I will send you my map to look at. Please return it.

A. A. HUMPHREYS,

Major-General and Chief of Staff.

HEADQUARTERS SIXTH CORPS,
May 13, 1864. (Received 8.15 p.m.)

Major-General HUMPHREYS, Chief of Staff:

As I know nothing whatever of the roads on which I am to move I will wait as you suggest until officer and guides are sent to conduct me.

H. G. WRIGHT,

Brigadier-General.

HEADQUARTERS ARMY OF THE POTOMAC,
May 13, 1864-9 p.m.

Major-General WRIGHT,

Commanding Sixth Corps:

If you have trains or hospitals about Cozzens', or Cossin's, they should be got more toward the left to-morrow morning.

A. A. HUMPHREYS,

Major-General and Chief of Staff.

HEADQUARTERS SIXTH CORPS,
May 13, 1864. (Received 9.30 p.m.)

General HUMPHREYS, Chief of Staff:

I have directed the hospital and trains to move to vicinity of Salem Church.

H. G. WRIGHT.

ORDERS.] HEADQUARTERS SIXTH ARMY CORPS,

May 13, 1864-11.15 a.m.

All spring wagons will be ordered to report at once to the medical director at corps hospital, in the vicinity of Alsop's Mill, for the transportation of the wounded to Fredericksburg.

* * * * * * *

By command of Brigadier-General Wright:

M. T. McMAHON,

Assistant Adjutant-General.