Sachem again interrupted: "Perhaps the maiden went through the fascinating evolution of revolving her body while her mind revolved the 'yes' or 'no' to her swain's question. It might be a refined way of telling her lover that she was well 'heeled,' and asking if he was." The Professor very gravely replied: "In those days the world had not run to slang. If one of Noah's children had dared to address him with the modern salutation of 'governor,' the venerable patriarch would have flung his child overboard from the ark. Taking your view of the case, Mr. Sachem, the whirl in the sand, which gave the lover his answer, is telling us to-day that same old story. And the coquette of that remote period caused the tell-tale walk upon the sand, which has proved the greatest geological discovery of modern times. I believe that it will be followed up and sustained by others equally as important, all tending to date man's birth thousands of years anterior to the time geology has hitherto assigned him an existence upon earth." We spent many hours of the night in getting the rocks to the depot for shipment to Topeka, the few inhabitants of Bavaria assisting us. Soon after a westward train came along, and we were again in motion toward the home of the buffalo. Before we slept the Professor gave us the following information: The vast plateau lying east of the Rocky Mountains, and which we were now approaching, was once covered by a series of great fresh-water lakes. At an early period these must have been connected with the sea, their waters then being quite salty, as is abundantly demonstrated by the remains of marine shells. During the time of the continental elevation these lakes were raised above the sea level, and their size very much diminished. Over the new land thus created, and surrounding these beautiful sheets of water, spread a vegetation at once so beautiful and so rich in growth that earth has now absolutely nothing with which to compare it. Amid these lovely pastures roved large herds of elephants, with the mastodon, rhinoceros, horse, and elk, while the streams and lakes abounded with fish. But the drainage toward the distant ocean continued, the water area diminished, the hot winds of the dry land drank up what remained of the lakes, and, in process of time, lo! the great grass-covered plains that we wander over delightedly to-day. What folly to suppose that such a land, so peculiarly fitted for man's enjoyment, should remain, through a long period of time, tenanted simply by brutes, and be given up to the human race only after its delightful characteristics had been entirely removed. CHAPTER VIII. THE "GREAT AMERICAN DESERT"--ITS FOSSIL WEALTH--AN ILLUSION DISPELLED--FIRES ACCORDING TO NOVELS AND ACCORDING TO FACT--SENSATIONAL HEROES AND HEROINES--PRAIRIE DOGS AND THEIR HABITS--HAWK AND DOG AND HAWK AND CAT.