He called on General Rosecrans at his headquarters in Murfreesboro, and among others met there Father Tracy, the general's chaplain, a Roman Catholic priest. During the visit Rosecrans was called aside (but in the same room) by a staff officer to receive information about a spy who had been caught within the lines. The general got quite excited over the information, talked loudly and hurriedly in giving directions concerning the matter, using some profane language. It seemed suddenly to occur to him that the clergymen were present, and from the opposite side of the room he turned toward them, exclaiming apologetically, "Gentlemen, I sometimes _swear_, but I never _blaspheme!_"] Rosecrans's adjutant-general was Captain George L. Hartsuff, an officer of the regular army, who was well qualified to supplement in many ways the abilities and deficiencies of his chief. [Footnote: Hartsuff was appointed brigadier-general of volunteers in the next year and was severely wounded at Antietam, after which he was made major-general and commanded the Twenty-third Army Corps in Burnside's campaign of East Tennessee.] He was a large man, of heavy frame; his face was broad, and his bald head, tapering high, gave a peculiar pyramidal appearance to his figure. He was systematic and accurate in administrative work, patient and insistent in bringing the young volunteer officers in his department into habits of order and good military form. His coolness tempered the impulsiveness of his chief, and as they were of similar age and had about the same standing in the army before the war, the familiarity between them was that of comrades and equals more than of commander and subordinate. My intercourse with these officers on the occasion of my visit to Cross Lanes was only the beginning of the acquaintance on which I based the estimate of them which I have given; but it was a good beginning, for the cordial freedom of thought and speech in the conference was such as to bring out the characteristics of the men. I rode back to my camp in the evening, feeling a sense of relief at the transfer of responsibility to other shoulders. The command of my brigade under the orders of Rosecrans seemed an easy task compared with the anxieties and the difficulties of the preceding three months. And so it was. The difference between chief responsibility in military movements and the leadership even of the largest subordinate organizations of an army is heaven-wide; and I believe that no one who has tried both will hesitate to say that the subordinate knows little or nothing of the strain upon the will and the moral faculties which the chief has to bear.