The Red river cart was a home invention. It was made entirely of wood and rawhide. It moved upon two wheels, of about a diameter of five feet six inches, with shafts for one animal, horse or ox,--generally the latter. The wheels were without tires, and their tread about three and a half or four inches wide. They would carry a load of six to eight hundred pounds, which would be protected by canvas covers. They were especially adapted to the condition of the country, which was largely interspersed with swamps and sloughs, which were impassable for any other character of vehicle. Their lightness, the width of the surface presented by the tread of the wheel and the careful steps of the educated animal which drew them, enabled them to go where anything else would flounder. The trail which they left upon the prairie was deeply cut, and remained for many years after they were disused. When a brigade of them was ready to leave from Pembina for St. Paul, it would be manned by one driver for four carts, the train being arranged in single file with the animals hitched to the cart before them, so that one driver could attend to that number of carts. Their speed was about fifteen miles a day, which made the voyage last about a month. When night overtook them they formed a circular corral with their carts, the shafts pointing inward, with the camp in the center, which made a strong fort in case of attack. The animals were allowed to graze on the outside, but were carefully watched to prevent a stampede. When they reached St. Paul they went into camp near some lake, and were a great source of interest to all the newcomers. During their stay the town would be thronged with the men, who were dressed in vari-colored costumes, always including the sash of Pembina, a beautiful girdle, giving them a most picturesque appearance. The only truthful representation of these curious people that has been preserved is found in two full length portraits of Joe Rollette, one in the gallery of the Minnesota Historical Society and the other on the walls of the Minnesota Club, in St. Paul, both of which are the gift of a very dear friend of the original. During the progress of this peculiar traffic many people not connected with the established fur companies, engaged in the Indian trade, prominently Culver and Farrington, Louis Roberts, and Nathan Myrick. I remember that Mr. John Farrington made an improvement in the construction of the Red river cart, by putting an iron box in the hub of the wheel, which prevented the loud squeaking noise they formerly made, and so facilitated their movements that they carried a thousand pounds as easily as they had before carried eight hundred. The early fur trade in the Northwest, carried on by canoes and these carts, was very appropriately called by one of our first historians of Minnesota, "The heroic age of American commerce." PEMMICAN.