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When Edward the First overran Scotland 600 years ago, he had it brought here, and since then every monarch of England has also sat upon it when crowned. 'The present Queen? asked some one. 'Yes, she also. The legend was that it was the stone upon which Jacob rested his head when he dreamed, but the geologists have proved that it is red sandstone of Scotland.
The Great Cold that Arrumpa speaks about must have been the Ice Age, that geologists tell us once covered the continent of North America, almost down to the Ohio River. It came and went slowly, and probably so changed the climate that the elephants, tigers, camels, and other animals that used to be found in the United States could no longer live in it.
Instead of submitting it, with a traditional story, to a council of Trent, they handed it over to the institute of Paris; and chemists, geologists, and philosophers, were called on to decide the fate of that relic which bishops, priests and deacons had pronounced to be too sacred for human investigation, or even for human touch.
I have myself seen, near Pernambuco, and in the province of Maranham, in Brazil, a great drift deposit that I believe to be of glacial origin; and I think it highly probable that the evidence that is accumulating will force geologists to the conclusion that the ice of the glacial period was not only more extensive than has been generally supposed, but that it existed at the same time in the northern and southern hemispheres, leaving, at least, on the American continent, only the lower lands of the tropics free from the icy covering.
Once upon a time, American geologists say, a huge sheet of water, for which they have even invented a definite name, Lake Bonneville, occupied a far larger valley among the outliers of the Rocky Mountains, measuring 300 miles in one direction by 180 miles in the other.
No subject has lately excited more curiosity and general interest among geologists and the public than the question of the Antiquity of the Human Race whether or no we have sufficient evidence in caves, or in the superficial deposits commonly called drift or "diluvium," to prove the former co-existence of man with certain extinct mammalia.
Some geologists have been inclined, from the marked and peculiar character of its vegetation, to set it apart as forming in itself a distinct geological age, while others have united it with the Palæozoic age. For many years I myself adopted the latter of these two views, and associated the Carboniferous epoch with the Palæozoic age.
Having thus briefly traced the evolution of geologic science, and noted its present form, let us go on to observe the way in which it is still swayed by the crude hypotheses it set out with; so that even now, doctrines long since abandoned as untenable in theory, continue in practice to mould the ideas of geologists, and to foster sundry beliefs that are logically indefensible.
That is their way of registering practical knowledge: We, on the other hand, study the structure of the body as a whole, systematically, and have no difficulty at all in remembering the track of the great vessels and nerves, and knowing just what tracks will be safe and what unsafe. It is just the same thing with the geologists.
Thus it is that where geologists find considerable fields of rock, where limestones are intercalated with sandstones and deposits of clay, they are justified in assuming that the strata were laid down near some ancient shore.
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