Major-General C.F. Smith received an injury to his leg by jumping into a yawl early in March. This injury, seeming trivial at first, resulted in his death on April 25th. It became so aggravated by the end of March that he was obliged to move from Pittsburg Landing to Savannah, leaving Brigadier-General W.H.L. Wallace in command of his division, and Major-General McClernand, senior officer present, at Pittsburg. General Grant--who went up from Savannah every day to visit the camps, and was requested by General McClernand, by letter on March 27th, to move his headquarters to Pittsburg Landing--was about to transfer his headquarters thither on April 4th, when he received a letter from General Buell saying he would arrive next day at Savannah, and requesting an interview. The transfer of headquarters was accordingly postponed till after the interview. General L. Wallace's division disembarked at Crump's Landing on the same side of the river with Pittsburg Landing, and a little above Savannah. His First Brigade went into camp near the river; the Second at Stony Lonesome, about two miles out on the road to Purdy; the Third Brigade immediately beyond Adamsville, on the same road. The Third Brigade went into camp on the inner slope of a sharp ridge, and cut down the timber on the exterior slope, to aid the holding of the position in case of an attack in front. While Grant's army was sailing up the river and getting settled at Pittsburg, General Buell with five divisions of his army was marching from Nashville to Savannah. Immediately on receiving General Halleck's order to march, he sent out his cavalry to secure the bridges on his route, in which they succeeded, except in the cases of the important bridge over Duck Creek at Columbia, and an unimportant bridge a few miles north of that. On the 15th, the Fourth Division, commanded by Brigadier-General A. McD. McCook, moved out, and at intervals, up to March 20th, it was followed in order by the Fifth, Brigadier-General T.L. Crittenden, Sixth, Brigadier-General T.J. Wood, and First, Brigadier-General George H. Thomas--37,000 men in all. Having no pontoons, General Buell built a bridge over Duck Creek. This would have caused little delay later in the war; but to fresh troops, who yet had to learn the business of military service, it was a formidable task, and was not completed till the 29th. While waiting for the completion of the bridge, General Buell's command learned that General Grant's army was on the west bank of the Tennessee. General Nelson at once asked permission to ford the stream and push rapidly on to Savannah. Permission being obtained, the division, with Ammen's brigade--the Twenty-fourth Ohio, Sixth Ohio, and Thirty-sixth Indiana in front--began their march early on the morning of the 29th, the men stripped of their pantaloons, carrying their cartridge-boxes on their necks; the ammunition-boxes of the artillery taken from the limbers and carried over on scows, and