Nobody was smiling; but the learned Professor was frequently disturbed by the broad smiles provoked by his learned eccentricities.
"Yes," he pursued with animation, "this is a fossil man, the contemporary of the mastodons whose remains fill this amphitheatre. But if you ask me how he came there, how those strata on which he lay slipped down into this enormous hollow in the globe, I confess I cannot answer that question. No doubt in the post-tertiary period considerable commotions were still disturbing the crust of the earth. The long-continued cooling of the globe produced chasms, fissures, clefts, and faults, into which, very probably, portions of the upper earth may have fallen. I make no rash assertions; but there is the man surrounded by his own works, by hatchets, by flint arrow-heads, which are the characteristics of the stone age. And unless he came here, like myself, as a tourist on a visit and as a pioneer of science, I can entertain no doubt of the authenticity of his remote origin."
[1] The facial angle is formed by two lines, one touching the brow and the front teeth, the other from the orifice of the ear to the lower line of the nostrils. The greater this angle, the higher intelligence denoted by the formation of the skull. Prognathism is that projection of the jaw-bones which sharpens or lessons this angle, and which is illustrated in the negro countenance and in the lowest savages.
The Professor ceased to speak, and the audience broke out into loud and unanimous applause. For of course my uncle was right, and wiser men than his nephew would have had some trouble to refute his statements.
Another remarkable thing. This fossil body was not the only one in this immense catacomb. We came upon other bodies at every step amongst this mortal dust, and my uncle might select the most curious of these specimens to demolish the incredulity of sceptics.
In fact it was a wonderful spectacle, that of these generations of men and animals commingled in a common cemetery. Then one very serious question arose presently which we scarcely dared to suggest. Had all those creatures slided through a great fissure in the crust of the earth, down to the shores of the Liedenbrock sea, when they were dead and turning to dust, or had they lived and grown and died here in this subterranean world under a false sky, just like inhabitants of the upper earth? Until the present time we had seen alive only marine monsters and fishes. Might not some living man, some native of the abyss, be yet a wanderer below on this desert strand?
CHAPTER XXXIX.
FOREST SCENERY ILLUMINATED BY ELECTRICITY
For another half hour we trod upon a pavement of bones. We pushed on, impelled by our burning curiosity. What other marvels did this cavern contain? What new treasures lay here for science to unfold? I was prepared for any surprise, my imagination was ready for any astonishment however astounding.
We had long lost sight of the sea shore behind the hills of bones. The rash Professor, careless of losing his way, hurried me forward. We advanced in silence, bathed in luminous electric fluid. By some phenomenon which I am unable to explain, it lighted up all sides of every object equally. Such was its diffusiveness, there being no central point from which the light emanated, that shadows no longer existed. You might have thought yourself under the rays of a vertical sun in a tropical region at noonday and the height of summer. No vapour was visible. The rocks, the distant mountains, a few isolated clumps of forest trees in the distance, presented a weird and wonderful aspect under these totally new conditions of a universal diffusion of light. We were like Hoffmann's shadowless man.