Chattanooga. The approach of Sherman further promising enough strength for the resumption of the offensive, the two commanders now entered upon plans for raising the siege. It was clear that to make Bragg withdraw by long-distance strategic movements was out of the question, owing to the nearness of the inclement season, the impossibility of accumulating sufficient supplies, and the condition of our draft animals. There was no other way than to drive off the enemy by direct aggressive operations. Perceiving this, the generals were receptive of suggestions which General Smith was ready to make to this end. After repeated and close observations of the ground, the engineer-in-chief was convinced that the northern end of Missionary Ridge, from the tunnel by which the Chattanooga & Cleveland Railroad passes under it to Chickamauga Creek, was not occupied by the enemy; that a passage of the Tennessee could therefore be forced at the mouth of the creek, the terminal heights of the ridge seized, and the rebel left thereby turned. Having satisfied himself by a personal reconnoissance that the topographical conditions were correctly represented, General Grant resolved to attempt the seizure of the position described, and directed all necessary preparations to be made as quickly as possible. The operation was not to be undertaken, however, before the advent of the reinforcements under General Sherman, for whose fine troops a leading part was reserved. With them there would certainly be sufficient numerical power for a decisive blow. According to the official returns, the effective strength of the Army of the Cumberland, at the end of October, was, without cavalry: 4th Army Corps, 19,781 officers and men on duty; 11th Corps, 6152; 12th Corps, 9211; 14th Corps, 19,220; reserve artillery, 1219 — or nearly 56,000; and fully half as many again were being led towards Chattanooga by Sherman, making a total of between 85,000 and 90,000.
It is now time to speak in detail of Sherman's doings. When General Grant received orders to send all the troops