August 19, 1862.

SPECIAL ORDER No. 185.

I. General Longstreet's command, constituting the right wing of the army, will cross the Rapidan at Raccoon Ford, and move in the direction of Culpepper Court-House. General Jackson's command, constituting the left wing, will cross at Summerville Ford, and move in the same direction, keeping on the left of General Longstreet. General Anderson's division will cross at Summerville Ford, follow the route of General Jackson, and act in reserve. The battalion of light artillery, under Colonel S.D. Lee, will take the same route. The cavalry, under General Stuart, will cross at Morton's Ford, pursue the route by Stevensburg to Rappahannock Station, destroy the railroad bridge, cut the enemy's communications, telegraph line, and, operating toward Culpepper Court-House, will take position on General Longstreet's right.

II. The commanders of each wing will designate the reserve for their commands. Medical and ammunition wagons will alone follow the troops across the Rapidan. The baggage and supply trains will be parked under their respective officers, in secure positions on the south side, so as not to embarrass the different roads.

III. Cooked rations for three days will be carried in the haversacks of the men, and provision must be made for foraging the animals. Straggling from the ranks is strictly prohibited, and commanders will make arrangements to secure and punish the offenders.

IV. The movements herein directed will commence to-morrow, 20th instant, at dawn of day.

By command of General R.E. Lee:

A.P. MASON, A.A. G.

HEADQUARTERS CRENSHAW'S FARM,} August 19, 1862.}

General J.E.B. Stuart, commanding Cavalry: