On our way through this region we strike the Republican bottom near Lat. 39 deg. 30' N., and Long. 97 deg. 20' W. We are now in the primest part of the buffalo-pasture. As we wind along the base of the steep Republican Bluffs, and the edges of those green amphitheatres made by their alternate approach and retrocession, our whistle scares a picket-line of giant bulls, guarding a divide across the stream, and with tails in air, heads at the down charge, they scour away at a lumbering cow-gallop, to tell the main herd of a progress more resistless than their own. Or, perhaps, our experience of the buffaloes is a more inconvenient one. We may find the main herd crossing our track in their migration from the Republican to the Platte. In such case, there will be a detention of several hours, as the current of a main herd is not fordable by any known human mechanism. The halt will be taken advantage of by timid spectators looking safely out of car-windows,--by _bona-fide_ hunters, who want fresh meat, and take along the tidbits of their game to be cooked for them at the next dinner-station,--and by excited pseudo-hunters, who will bang away with their rifles at the defenceless herd, until the ground flows with useless blood, and somebody suggests to them that they might as well call it sportsmanship to fire into a farmer's cow-yard, resting over the top-rail. Now and then we shall whirl through a village of chattering prairie-dogs, send a hen-turkey rattling off her nest in a thicket on the river's edge, or perhaps surprise even an antelope sufficiently close to point out to the ladies from our window the exquisite flight of that swiftest and most beautiful creature in our American fauna. But our road will not be in running order very long before this sight becomes the rarest of the rare. The stolid buffalo will continue to wear his old paths long after the human presence has driven every antelope into invisible fastnesses.