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 less about 2000 on escort and other detached duties. There was also the cavalry corps, with 9676 officers and men; but, owing to the broken and thickly wooded character of the scene of action, the mounted troops did only desultory fighting on a part of the front and on the wings, and may well be excluded, therefore, from the number of participants in the main action. The reserve corps under General Granger did not come into action until late on the second day, with the exception of one brigade under Colonel Daniel McCook, whose presence was, however, more than offset by the absence of Wagner's brigade of the Twenty-first Corps, garrisoning Chattanooga, and of one of Davis's brigades of the Twentieth Corps left to guard Stevens Gap. Hence it is right to say that there were about 43,000 combatants, exclusive of cavalry, on the Union side, with 196 pieces of artillery.

Bragg had 35,000 effectives, exclusive of cavalry, when he marched away from Chattanooga, from which five per cent. may be deducted for decrease from sickness and straggling (the rebels having been campaigning only half as long as the Unionists). He admits having been strengthened in time for the battle by two brigades of foot from Mississippi and five brigades of Longstreet's corps, which he, however, describes as weak and not exceeding five thousand effectives. But the seven brigades numbered certainly not less than 8000, bringing the effectives up to something under 42,000. This total is borne out by the aggregates of officers and men engaged given in the reports of the corps and division commanders, which foot up exactly 41,700 infantry and artillery. The rebel cavalry was stronger than the Federal, but its part also was confined to small and scattering fights, excepting the attack, hereafter mentioned, by Forrest's corps at the opening of the battle on the first day. The artillery numbered about the same as the Unionists'.

In another respect than numbers, about equal conditions prevailed on both sides. Neither the Unionists nor the Confederates were in fresh condition. The officers and men