Perhaps the leading incident of this particular part of the big trek was the discovery by the Commissioner of Jerry Potts, a short, heavy-set, taciturn man, half Scot and half Piegan, a wonderful plainsman, skilled in the language of the Indian tribes and a past-master in all the lore of the prairies. His father was an Edinburgh Scot, who was killed in Missouri by an Indian, and it is said that Jerry, though a mere boy, followed the Indian into camp and shot him. Anyway, Jerry Potts became a splendid help to the Police, a trainer of scouts, a matchless diplomat with the Indians, an incomparable interpreter, and a highly respected guide who, without consulting maps, seemed to know the way by instinct either in summer or winter. He began to be useful as soon as he took service with the Force in that fall of 1874. He guided them to the best feeding-places for the horses and cattle, and to the watering-places which were so constantly needed. And when, a few days after he came, the column struck herds of innumerable buffalo, it was Jerry Potts who warned against shooting at certain times, lest the bisons would stampede and trample the whole cavalcade under foot. Potts remained with the Police as interpreter till his death in 1906, making a long service of twenty-two years. We shall meet his name here and there in this story--a diamond in the rough, entitled to a niche in the hall of the men who helped to shape the early years of our history. Shortly after this trip to Montana, Colonel French, with the divisions above named, left the foothill country, and, coming back by way of Qu'Appelle, Fort Pelly and Swan River, he reached Dufferin, as already mentioned, in the 30 degrees below zero weather, he and the men with him having travelled about 2,000 miles since leaving there in July.