I have seen it asserted that there were mules that had been known to trot in harness in three minutes. In all my experience, I have never seen any thing of the kind, and do not believe the mule ever existed that could do it. It is a remarkably good road horse that will do this, and I have never yet seen a mule that could compare for speed with a good roadster. I have driven mules, single and double, night and day, from two to ten in a team, and have handled them in every way that it is possible to handle them, and have in my charge at this time two hundred of the best mule teams in the world, and there is not a span among them that could be forced over the road in four minutes. It is true of the mule that he will stand more abuse, more beating, more straining and constant dogging at him than any other animal used in a team. But all the work you can get out of him, over and above an ordinary day's work, you have to work as hard as he does to accomplish. Some curious facts have come under my knowledge as to what the mule can endure. These facts also illustrate what can be done with the animal by persons thoroughly acquainted with his character. While on the plains, I have known Kiowa and Camanche Indians to break into our pickets during the night, and steal mules that had been pronounced completely broken down by white men. And these mules they have ridden sixty and sixty-five miles of a single night. How these Indians managed to do this, I never could tell. I have repeatedly seen Mexicans mount mules that our men had pronounced unfit for further service, and ride them twenty and twenty-five miles without stopping. I do not mention this to show that a Mexican can do more with the mule than an American. He cannot. And yet there seems to be some sort of fellow-feeling between these Mexicans and the mule. One seems to understand the other completely; and in disposition there is very little difference. And yet the Mexican is so brutish in dealing with animals, that I never allowed one of them to drive a Government team for me. Indeed, a low Mexican does not seem disposed to work for a man who will not allow him full latitude in the abuse of animals. _Packing Mules_.--The Mexican is a better packer than the American. He has had more experience, and understands all its details better than any other man. Some of our United States officers have tried to improve on the experience of the Greaser, and have made what they called an improvement on the Mexican pack-saddle. But all the attempts at improvement have been utter failures. The ranchero, on the Pacific side of the Sierra Nevadas, is also a good packer; and he can beat the Mexican lassoing cattle. But he is the only man in the United States who can. The reason for this is, that they went into that country when very young, and improved on the Mexican, by having cattle, mules, and horses round them all the time, and being continually catching them for the purpose of branding and marking.