He was the evolution of a military horse-trade,--one of those periodical swappings required of his dragoons by Uncle Sam on those rare occasions when a regiment that has been dry-rotting half a decade in Arizona is at last relieved by one from the Plains. How it happened that we of the Fifth should have kept him from the clutches of those sharp horse-fanciers of the Sixth is more than I know. Regimental tradition had it that we got him from the Third Cavalry when it came our turn to go into exile in 1871. He was the victim of some temporary malady at the time,--one of those multitudinous ills to which horse-flesh is heir,--or he never would have come to us. It was simply impossible that anybody who knew anything about horses should trade off such a promising young racer so long as there remained an unpledged pay-account in the officers' mess. Possibly the arid climate of Arizona had disagreed with him and he had gone amiss, as would the mechanism of some of the best watches in the regiment, unable to stand the strain of anything so hot and high and dry. Possibly the Third was so overjoyed at getting out of Arizona on any terms that they would gladly have left their eye-teeth in pawn. Whatever may have been the cause, the transfer was an accomplished fact, and Van was one of some seven hundred quadrupeds, of greater or less value, which became the property of the Fifth Regiment of Cavalry, U.S.A., in lawful exchange for a like number of chargers left in the stables along the recently-built Union Pacific to await the coming of their new riders from the distant West. We had never met in those days, Van and I. "Compadres" and chums as we were destined to become, we were utterly unknown and indifferent to each other; but in point of regimental reputation at the time, Van had decidedly the best of it. He was a celebrity at head-quarters, I a subaltern at an isolated post. He had apparently become acclimated, and was rapidly winning respect for himself and dollars for his backers; I was winning neither for anybody, and doubtless losing both,--they go together, somehow. Van was living on metaphorical clover down near Tucson; I was roughing it out on the rocks of the Mogollon. Each after his own fashion served out his time in the grim old Territory, and at last "came marching home again;" and early in the summer of the Centennial year, and just in the midst of the great Sioux war of 1876, Van and I made each other's acquaintance.