A thing at which to marvel was the growth of the eastern border of Dakota Territory in this, the time of the great boom. History can scarcely find its parallel. In the space of a decade the census leaped from two-score thousand to nearly a half million. New towns sprang up like fungi in a night. Railroads reached out like the tentacles of an octopus, where a generation before the buffalo had tramped its tortuous trail. Prosperous farms came into being in the meadows where the antelope had pastured. Artesian wells, waterworks, electric lights, street railways, colleges, all the adjuncts of a higher civilisation, blossomed forth under the magic wand of Eastern capital. Doomed to reaction, as an advancing pendulum is doomed to retrace its cycle, was this premature evolution; but temporarily, as a springtime freshet bears onward the driftwood in its path, it carried its predecessor, the unconventional, fighting, wild-loving adventurer, before. On it went, on and on until at last, fairly blocking its path, was the big, muddy, dawdling Missouri. Then for the first time it halted; halted in a pause that was to last for a generation. But it had fulfilled its mission. High and dry on the western side of the barrier, imbued as when they had settled to the east, with the restless spirit of the frontier, unsubdued, unchanged, it cast its burden. There, as they had done before, the newcomers immediately took root, and, after the passage of a year, were all but unconscious of the migration. Over their heads was the same blue prairie sky. Around them, treeless, trackless, was the same rolling, illimitable prairie land. In but one essential were conditions changed; yet that one was epoch-making. Heretofore, surrounded by a common, an alien danger, compelled at a second’s warning to band together for life itself, all men were brothers. Now, with the passing of the red peril, with eradication of necessity for any manner of restraint, an abandon of licence, of recklessness, born of the wild life, of overflowing animal vitality insufficiently employed,