Earlier in the morning Evans has supposed, from the cannonade of Tyler's batteries among the pines on the hills obliquely opposite the Enemy's left, as well as from the sound of the cannonade of the Union batteries away down the stream on the Enemy's right, near Blackburn's Ford, that McDowell is about to make an attack upon the whole front of the Rebel line of defense along Bull Run—by way of the Stone Bridge, and the various fords below it, which cross that stream. But by 10 o'clock, that Rebel general begins to feel doubtful, suspicious, and uneasy. Despite the booming of Tyler's guns, he has caught in the distance the rumbling sounds of Hunter's Artillery wheels.
Evans finds himself pondering the meaning of those long lines of dust, away to his left; and then, like a flash, it bursts upon him, that all this Military hubbub in his front, and far away to his right, is but a feint; that the real danger is somehow connected with that mysterious far-away rumble, and those lines of yellow dust; that the main attack is to be on the unprepared left and rear of the Rebel position!
No sooner has the Rebel brigade-commander thus divined the Union plan of attack, than he prepares, with the limited force at his command, to thwart it. Burnside and he are about equidistant, by this time, from the intersection of the Sudley road, running South, with the Warrenton Pike, running West. Much depends upon which of them shall be the first to reach it,—and the instinctive, intuitive knowledge of this, spurs Evans to his utmost energy. He leaves four of his fifteen companies, and Rogers's section of the Loudoun Artillery,—which has come up from Cocke's Brigade, at the ford below—to defend the approaches to the Stone Bridge, from the East side of Bull Run,—and, with the other eleven companies, and Latham's half-battery, he hurries Westward, along the Warrenton Pike, toward the Sudley road-crossing, to resist the impending Union attack.
It is now 10:30 o'clock, and, as he hurries along, with anxious eyes, scanning the woods at the North, he suddenly catches the glitter of Burnside's bayonets coming down through them, East of the Sudley road, in "column of regiments" toward Young's Branch—a small stream turning, in a Northern and Southern loop, respectively above and below the Warrenton Pike, much as the S of a prostrate dollar-mark twines above and below its horizontal line, the vicinity of which is destined to be hotly-contested ground ere night-fall.
[Says Captain D. P. Woodbury, U. S. corps of engineers, and who, with Captain Wright, guided the divisions of Hunter and Heintzelman in making the detour to the upper part of Bull Run: "At Sudley's Mills we lingered about an hour to give the men and horses water and a little rest before going into action, our advance guard in the mean time going ahead about three quarters of a mile. Resuming our march, we emerged from the woods about one mile South of the ford, and came upon a beautiful open valley about one and a quarter miles square, bounded on the right or West by a wooded ridge, on the Fast by the rough spurs or bluffs of Bull Run, on the North by an open plain and ridge, on which our troops began to form, and on the South by another ridge, on which the Enemy was strongly posted, with woods behind their backs. The Enemy was also in possession of the bluffs of Bull Run on our left.">[
[Says Captain D. P. Woodbury, U. S. corps of engineers, and who, with Captain Wright, guided the divisions of Hunter and Heintzelman in making the detour to the upper part of Bull Run: "At Sudley's Mills we lingered about an hour to give the men and horses water and a little rest before going into action, our advance guard in the mean time going ahead about three quarters of a mile. Resuming our march, we emerged from the woods about one mile South of the ford, and came upon a beautiful open valley about one and a quarter miles square, bounded on the right or West by a wooded ridge, on the Fast by the rough spurs or bluffs of Bull Run, on the North by an open plain and ridge, on which our troops began to form, and on the South by another ridge, on which the Enemy was strongly posted, with woods behind their backs. The Enemy was also in possession of the bluffs of Bull Run on our left.">[
[Says Captain D. P. Woodbury, U. S. corps of engineers, and who, with Captain Wright, guided the divisions of Hunter and Heintzelman in making the detour to the upper part of Bull Run: "At Sudley's Mills we lingered about an hour to give the men and horses water and a little rest before going into action, our advance guard in the mean time going ahead about three quarters of a mile. Resuming our march, we emerged from the woods about one mile South of the ford, and came upon a beautiful open valley about one and a quarter miles square, bounded on the right or West by a wooded ridge, on the Fast by the rough spurs or bluffs of Bull Run, on the North by an open plain and ridge, on which our troops began to form, and on the South by another ridge, on which the Enemy was strongly posted, with woods behind their backs. The Enemy was also in possession of the bluffs of Bull Run on our left.">[
Sending word to Headquarters, Evans pushes forward and gaining Buck Ridge, to the North of the Northern loop of Young's Branch, forms his line-of-battle upon that elevation—which somewhat compensates him for the inferiority of his numbers—nearly at right angles to the Bull Run line; rapidly puts his Artillery in position; the Rebel guns open on Burnside's advance—their hoarse roar soon supplemented by the rattle of Rebel musketry, and the answering roar and rattle of the Union onset; and the Battle of Bull Run has commenced!
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.