prairie was on fire! By turning backward and straining my eyes I fancied I could make out a cloud of smoke far in the rear of the caravan. In a few moments this dim vision became clear and tangible. I told my fears to the driver, who laughed at me for my pains. Then I caught sight of a man on horseback on the crest of rise in the prairie. He was riding towards us as fast as his horse could carry him. Passing us like a whirlwind, he shouted: "Whip up, man! The prairie's on fire! Move for the river straight ahead!" In a second he was gone, shouting the same word to every startled driver he passed. His approach had been noted by the boss, who was at the head of the entire procession. That grand marshal of the day, for that was substantially his position, came riding back to meet the courier. Instantly, on learning the tidings, he wheeled about and rode like the wind for the chariot in the lead, drawn by six splendid horses white as milk.
Sharp orders emphasized by a liberal sprinkling of profanity were sufficient to impress the driver of the magnificent leaders with the awful gravity of the situation and with the fact that he must set the pace for the remainder of the caravan. It might be thought that the
