innumerable shells of every shape and size—once the dwelling place of animals of every period of creation. I particularly noticed some enormous shells—carapaces (turtle and tortoise species) the diameter of which exceeded fifteen feet.
They had in past ages belonged to those gigantic glyptodons of the pliocene period, of which the modern turtle is but a minute specimen. In addition, the whole soil was covered by a vast quantity of stony relics, having the appearance of flints worn by the action of the waves, and lying in successive layers one above the other. It appeared clear that we were walking upon a kind of sediment, formed like all the soils of that period, so frequent on the surface of the globe, by the subsidence of the waters. The Professor, who was now in his element, carefully examined every rocky fissure. Let him only find an opening and it directly became important to him to examine its depth.
For a whole mile we followed the windings of the Central Sea, when suddenly an important change took place in the aspect of the soil. It seemed to have been rudely cast up, convulsionized, as it were, by a violent upheaving of the lower strata. In many places, hollows here, and hillocks there, attested great dislocations at some other period of the terrestrial mass. We advanced with great difficulty over the broken masses of granite mixed with flint, quartz and alluvial deposits, when a large field, more even than a field, a plain of bones, appeared suddenly before our eyes!
It looked like an immense cemetery, where generation after generation had mingled their mortal dust. Lofty barrows of early remains rose at intervals. They undulated away to the limits of the distant horizon and were lost in a thick and brown fog. On that spot, some three square miles in extent, was accumulated the whole history of animal life—scarcely one creature still a habitant of the comparatively modern soil of the upper and inhabited world, had there existed.
We were drawn forward by an all-absorbing and impatient curiosity. Our feet crushed with a dry and crackling sound the remains of those prehistoric fossils, for which the museums of great cities quarrel, even when they obtain only rare and curious morsels. I was utterly confounded. My uncle stood for some minutes with his arms raised on
