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Jogular Morotario Sectory 09
Page 07
Having glanced at method and sources, I pass on to results. Some text-book must be consulted for the long list of pre-historic periods required for western Europe, not to mention the further complications caused by bringing in the remaining portions of the world. The stone-age, with its three great divisions, the eolithic (_eos_, Greek for dawn, and _lithos_, stone) the palaeolithic (_pallaeos_, old), and the neolithic (_neos_, new), and their numerous subdivisions, comes first; then the age of copper and bronze; and then the early iron-age, which is about the limit of proto-history. Here I shall confine my remarks to Europe. I am not going far afield into such questions as: Who were the mound-builders of North America? And are the Calaveras skull and other remains found in the gold-bearing gravels of California to be reckoned amongst the earliest traces of man in the globe? Nor, again, must I pause to speculate whether the dark-stained lustrous flint implements discovered by Mr. Henry Balfour at a high level below the Victoria Falls, and possibly deposited there by the river Zambezi before it had carved the present gorge in the solid basalt, prove that likewise in South Africa man was alive and busy untold thousands of years ago. Also, I shall here confine myself to the stone-age, because my object is chiefly to illustrate the long pedigree of the species from which we are all sprung.
That there is a close likeness between all these bodies is obvious from the fact that when any of them is strongly heated, or allowed to putrefy, it gives off the same sort of disagreeable smell; and careful chemical analysis has shown that they are, in fact, all composed of the elements carbon, hydrogen, oxygen, and nitrogen, combined in very nearly the same proportions. Indeed, charcoal, which is impure carbon, might be obtained by strongly heating either a handful of corn, or a piece of fowl's flesh, in a vessel from which the air is excluded so as to keep the corn or the flesh from burning. And if the vessel were a still, so that the products of this destructive distillation, as it is called, could be condensed and collected, we should find water and ammonia, in some shape or other, in the receiver. Now ammonia is a compound of the elementary bodies, nitrogen and hydrogen; therefore both nitrogen and hydrogen must have been contained in the bodies from which it is derived.
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