From the ably written and graphic Police reports for the years following the rebellion, one can visualize the changing conditions of the country. The outbreak had undesignedly advertised the wide West. The thousands of men who had come out on military duty, having spied out the wondrous fatness of the land, had gone back to the east to become unofficial immigration agents by telling what they had beheld. And so the tide of humanity began to flow over the plains towards the setting sun. This means that the buffalo were gone for all time and that game generally would become a precarious means of existence, that the ranch and the farm would supersede the open plain, that settlers would need much guidance as well as protection, that the Indians would have to be taught to stay on their reserves and make a living there, and that the half-breeds, who were no lovers of agriculture, would have to be weaned from their nomadic inclinations. In some parts of the vast country, as at Prince Albert, Superintendent A. B. Perry, who took charge there after the rebellion, states, "The general attitude of the half-breeds and Indians was one of regret for what had happened." All was going well, but in some other quarters there was a sort of sullenly defiant spirit abroad which took all the tact and the courage of the Police to overcome. It was fortunate that the officers and men of the Police had from the beginning so commended themselves to the Indians and half-breeds as exponents of fair play that these natives of the country never seemed to hold the Police responsible for the errors, delays or mistakes of any government. In speaking of Police reports I would like the reader to bear in mind that, in addition to the reports furnished by the combatant officers generally so classified, commissioners, superintendents, inspectors and others, some of the most remarkable and important documents sent forward to the proper authorities, through the usual channels, were written by the surgeons and their assistants, and also by the veterinary surgeons. Men and their troop horses were companions on the long trails, and they both had to be cared for by sympathetic experts in each line. It was vastly important that both should be kept fit if the work was to be done, and of the two the men themselves were always more anxious about their horses than about their own comfort. Hence these health-preserving specialists were of peculiar value for the efficiency of the corps. And as they were men of education as well as keen observers, their reports bore the evidences of research, which made them treasuries of information.