The immediate cause of Rosecrans's removal was his failure at Chickamauga. There were other offenses laid to his charge, but this was enough to condemn him; and he would have been relieved immediately after that event had it not been necessary, in Mr. Lincoln's opinion, to retain him in the position until after the Ohio election for governor. So little were the people understood, and so little was their deep earnestness appreciated, that there were wise counselors of the President who believed that the removal of Rosecrans at that time would strengthen Vallandigham, and perhaps secure his election over Brough. As soon as the election was over, however, Rosecrans was removed, and very properly too, for his entire campaign had been one series of great mistakes, which circumstances have served to hide from general observation. I am in some measure responsible for the false impressions prevailing about that campaign, for I was so placed--as correspondent for a leading paper of the country--that I could have given them publication, but the sin was one of omission only. A little circumstance prevented me at the time from telling the whole truth about the battle of Chickamauga, or even all I had proposed to tell. As it was, I was condemned, abused, and ridiculed by half the papers in the country for what little I did say, and for a few weeks I felt myself the best abused man in the country. It was not until Rosecrans, and McCook, and Crittenden were relieved that people began to understand that I was right, and I to feel that I had made a mistake in not giving the whole story in full. The circumstance which induced me to do otherwise was this: A week or two before the battle of Chickamauga, the Assistant Secretary of War, Charles A. Dana, arrived at Rosecrans's head-quarters, and he was received by the army as if he was a bird of evil omen. It was whispered at head-quarters that he had come as the spy of the War Department, and to find justification for Rosecrans's intended removal; the rumor spread to the camp; officers looked upon him with scowls, and the men ridiculed him by pretending to mistake him for a sutler, and by calling after him as he would ride by in the wake of Rosecrans, "Hey, old sutler! when are you going to open out?" Mr. Dana's position must have been very unpleasant to him, for he was evidently an object of suspicion in every body's eyes, and his mission "to ruin Rosecrans" was the talk of the whole camp. On the morning after the battle, when about leaving Chattanooga for New York, in order to write up an account of the battle for the Herald, I waited on General Rosecrans to obtain his approval to a dispatch to be forwarded by telegraph. The general, Garfield, Dana, and one or two aids, were at lunch. While General Garfield read and approved the dispatch, General Rosecrans asked me, among other questions, what I proposed to tell about the late battle. I answered, "The plain, unvarnished truth, I hope." Soon after I left, and Mr.