We could not attempt an advance into Georgia without food, ammunition, etc.; and ordinary prudence dictated that we should have an accumulation at the front, in case of interruption to the railway by the act of the enemy, or by common accident.  Accordingly, on the 6th of April, I issued a general order, limiting the use of the railroad-cars to transporting only the essential articles of food, ammunition, and supplies for the army proper, forbidding any further issues to citizens, and cutting off all civil traffic; requiring the commanders of posts within thirty miles of Nashville to haul out their own stores in wagons; requiring all troops destined for the front to march, and all beef-cattle to be driven on their own legs.  This was a great help, but of course it naturally raised a howl.  Some of the poor Union people of East Tennessee appealed to President Lincoln, whose kind heart responded promptly to their request.  He telegraphed me to know if I could not modify or repeal my orders; but I answered him that a great campaign was impending, on which the fate of the nation hung; that our railroads had but a limited capacity, and could not provide for the necessities of the army and of the people too; that one or the other must quit, and we could not until the army of Jos.  Johnston was conquered, etc., etc.  Mr. Lincoln seemed to acquiesce, and I advised the people to obtain and drive out cattle from Kentucky, and to haul out their supplies by the wagon-road from the same quarter, by way of Cumberland Gap.  By these changes we nearly or quite doubled our daily accumulation of stores at the front, and yet even this was not found enough.

I accordingly called together in Nashville the master of transportation, Colonel Anderson, the chief quartermaster, General J. L. Donaldson, and the chief commissary, General Amos Beckwith, for conference.  I assumed the strength of the army to move from Chattanooga into Georgia at one hundred thousand men, and the number of animals to be fed, both for cavalry and draught, at thirty-five thousand; then, allowing for occasional wrecks of trains, which were very common, and for the interruption of the road itself by guerrillas and regular raids, we estimated it would require one hundred and thirty cars, of ten tons each, to reach Chattanooga daily, to be reasonably certain of an adequate supply.  Even with this calculation, we could not afford to bring forward hay for the horses and mules, nor more than five pounds of oats or corn per day for each animal.  I was willing to risk the question of forage in part, because I expected to find wheat and corn fields, and a good deal of grass, as we advanced into Georgia at that season of the year.  The problem then was to deliver at Chattanooga and beyond one hundred and thirty car-loads daily, leaving the beef-cattle to be driven on the hoof, and all the troops in excess of the usual train-guards to march by the ordinary roads.  Colonel Anderson