If, on the other hand, the Report of the Rebel Captain Arthur L. Rogers, of the Loudoun Artillery, to General Philip St. George Cocke, be correct, it would seem that Sherman attempted to cross Bull Run lower down than Poplar Ford, which is "about one mile above the Stone Bridge," but was driven back by the fire of Rogers's guns to cross at that particular ford; for Rogers, in that Report, says that about 11 o'clock A. M., the first section of the Loudoun Artillery, under his command, "proceeded to the crest of the hill on the West Side of Bull Run, commanding Stone Bridge. * * * Here." continues he, "I posted my section of Artillery, and opened a brisk fire upon a column of the Enemy's Infantry, supposed to be two regiments, advancing towards me, and supported by his battery of rifled cannon on the hills opposite. These poured into my section a steady fire of shot and shell. After giving them some fifty rounds, I succeeded in heading his column, and turned it up Bull Run to a ford about one mile above Stone Bridge, where, with the regiments which followed, they crossed, and proceeded to join the rest of the Enemy's forces in front of the main body of our Army."] Before this developing, expanding, and advancing attack of the Union forces, the Rebel General Bee, who--since his coming up to support Evans, with his own and Bartow's Brigades, to which had since been added Hampton's Legion,--has been in command of this new Rebel line of defense upon the left of the Bull Run line, concludes that that attack is getting too strong for him, and orders his forces to retreat to the Southward, and re-form on a second line, parallel to their present line, and behind the rising ground at their rear. They do so, somewhat faster than he desires. The whole line of the Rebel centre gives way, followed by the wings, as far as the victorious Union troops can see. We must be blind if we cannot perceive that thus far, the outlook, from the Union point of view,--despite numberless mistakes of detail, and some, perhaps, more general in their character--is very good. The "Boys in Blue" are irresistibly advancing, driving the "Rebel Gray" back and back, without let or hindrance, over the Buck Hill ridge, over Young's Branch, back to, and even over, the Warrenton Pike. Time, to be sure, is flying--valuable time; but the Enemy also is retiring.--There is some slight confusion in parts of our own ranks; but there is much more in his. At present, we have decidedly the best of it. McDowell's plan has been, thus far, successful. Will that success continue? We shall see.