General Sherman strove hard to have the whole of the Fifteenth Corps opposite the mouth of the Chickamauga in time to strike on November 20, but found it beyond his power. General Ewing's division was the first to cross at Bridgeport, but made the detour to Trenton. General John E. Smith's followed next and reached its destination by the above date. But Generals Morgan L. Smith's and Osterhaus's were then still struggling with the badly cut-up and encumbered road between Shellmound and Brown's Ferry. A serious oversight had been committed in allowing the heavy division trains to follow each division, instead of moving the infantry and artillery ahead of them all. General Grant was greatly surprised when he learned of the blunder, but generously assumed the responsibility for it, though Sherman deserved the direct blame. Rain, too, again set in and impeded the marching. General Sherman reached General Hooker's headquarters on the afternoon of the 20th, and there found General Grant's order to him to make the attack the next day; but he was unwillingly obliged to ask for a postponement, which was reluctantly granted. The second division (Gen. M. L. Smith's) succeeded in crossing at Brown's Ferry only on the 21st. Ewing's had marched down Lookout Valley from Trenton and was to cross next, but, owing to the repeated breaking of the bridge by the drift-wood, did not get over till the 23d. So much damage was caused to the bridge after this that it would apparently take several more days to get Osterhaus's division on the other side. Hence, General Sherman felt it his duty to offer to undertake the movement against Missionary Ridge with the three divisions already over, and to let the other operate under the orders of General Hooker, provided a substitute was placed at his disposal. General Grant sanctioned this proposition, and Osterhaus acted under Hooker during the whole of the subsequent operations. On the afternoon of the 23d, Sherman's troops, reinforced by Jefferson C. Davis's division, were concentrated behind the hills opposite the mouth of the
