It is after 10:30 A.M., and Beauregard and Johnston are upon an eminence in the rear of the centre of the Enemy's Bull Run line. They have been there since 8 o'clock. An hour ago, or more, their Signal Officer has reported a large body of Union troops crossing the Bull Run Valley, some two or three miles above the Stone Bridge; upon the strength of which, Johnston has ordered Bee's Brigade from near Cocke's position, with Hampton's Legion and Stonewall Jackson's Brigade from near Bonham's left, to move to the Rebel left, at Stone Bridge; and these troops are now hastening thither, guided by the sound of the guns.
The artillery-firing is also heard by Johnston and Beauregard, but intervening wooded slopes prevent them from determining precisely whence it comes. Beauregard, with a badly-organized staff, is chaffing over the delay that has occurred in carrying out his own plan of battle. He is waiting to hear of the progress of the attack which he has ordered upon the Union Army,—supposed by him to be at Centreville,—and especially as to the advance of his right toward Sangster's Station. In the meantime also,—from early morning,—the Rebel commanders have heard heavy firing in the direction of Blackburn's Ford, toward their right, where the Artillery attached to the brigades of Davies and Richardson, constituting McDowell's Left Wing, is demonstrating in a lively manner, in accordance with McDowell's plan.
It is 11 o'clock. Beauregard has become satisfied that his orders for the Rebel advance and attack on Centreville, have failed or miscarried. His plan is abandoned, and the orders countermanded. At the same time the growing volume of artillery-detonations upon the left of the Bull Run line of defense—together with the clouds of dust which indicate the route of march of Hunter's and Heintzelman's Divisions from near Centreville to the point of conflict, satisfies both Johnston and Beauregard, that a serious attack is imperilling the Rebel left.
Beauregard at once proposes to Johnston "a modification of the abandoned plan," viz.: "to attack with the" Rebel "right, while the left stands on the defensive." But rapidly transpiring events conspire to make even the modified plan impracticable.
Johnston, convinced by the still growing volume of battle-sounds on the Rebel left, that the main attack of McDowell is being made there, urges Beauregard to strengthen the left, as much as possible; and, after that general has sent orders to this end,—to Holmes and Early to come up with their Brigades from Union Mills Ford, moving "with all speed to the sound of the firing," and to Bonham to promptly send up, from Mitchell's Ford, a battery and two of his regiments—both he and Beauregard put spurs to their horses, and gallop at full speed toward the firing, four miles away on their left,—stopping on the way only long enough for Johnston to order his Chief-of-artillery, Colonel Pendleton, to "follow, with his own, and Alburtis's Batteries."
Meanwhile let us return and witness the progress of the battle, on the Rebel left,—where we were looking on, at 10:30 o'clock. Evans had then just posted his eleven companies of Infantry on Buck Ridge, with one of his two guns on his left, near the Sudley road, and the other not far from the Robinson House, upon the Northern spur of the elevated plateau just South of Young's Branch, and nearly midway between the Sudley road and Stone Bridge.
The battle, as we have seen, has opened. As Burnside's Brigade appears on the slope, to the North of Buck Ridge (or Hill), it is received by a rapid, well-sustained, and uncomfortable, but not very destructive fire, from Evans's Artillery, and, as the Union regiments press forward, in column, full of impulsive ardor, the Enemy welcomes the head of the column with a hot musketry-fire also, delivered from the crest of the elevation behind which the Rebel Infantry lie flat upon the ground.
This defense by Evan's demi-Brigade still continues, although half an hour, or more, has elapsed. Burnside has not yet been able to dislodge the Enemy from the position. Emboldened to temerity by this fact, Major Wheat's Louisiana battalion advances through the woods in front, upon Burnside, but is hurled back by a galling fire, which throws it into disorder and flight.
At this moment, however, the brigades of Bee and Bartow—comprising the 7th and 8th Georgia, 2nd Mississippi, 4th Alabama, 6th North Carolina, and two companies of the 11th Mississippi, with Imboden's Battery of four pieces—recently arrived with Johnston from Winchester, come up, form on the right of Sloan's 4th South Carolina Regiment, while Wheat rallies his remnant on Sloan's left, now resting on the Sudley road, and the whole new Rebel line opens a hot fire upon Burnside's Brigade.
Hunter, for the purpose of better directing the Union attack, is at this moment rapidly riding to the left of the Union line,—which is advancing Southwardly, at right angles to Bull Run stream and the old line of Rebel defense thereon. He is struck by the fragment of a shell, and carried to the rear.