of the bolts; its bars bent, its partitions groaned; the windows of the saloon seemed to curve under the pressure of the waters. And this firm structure would doubtless have yielded, if, as the captain had said, it had not been capable of resistance like a solid block. In skirting the declivity of these rocks, lost under the water, I still saw some shells, some serpulæ and spinorbes, still living, and some specimens of asteriads. But soon this last representative of animal life disappeared; and at the depth of more than three leagues, the Nautilus had passed the limits of submarine existence, even as a balloon does when it rises above the respirable atmosphere. We had attained a depth of 16,000 yards (four leagues), and the sides of the Nautilus then bore a pressure of 1,600 atmospheres, that is to say, 3,200 pounds to each square two-fifths of an inch of its entire surface.
"What a situation to be in!" I exclaimed. "To overrun these deep regions where man has never trod! Look, captain, look at these magnificent rocks, these uninhabited grottoes, these lowest receptacles of the globe, where life is no longer possible! What unknown sights are here! Why should we be unable to preserve a remembrance of them?"
"Would you like to carry away more than the remembrance?" said Captain Nemo.
"What do you mean by those words?"
"I mean to say that nothing is easier than to take a photographic view of this submarine region."
I had not time to express my surprise at this new proposition, when, at Captain Nemo's call, an objective was brought into the saloon. Through the widely opened panel, the liquid mass was bright with electricity, which was distributed with such uniformity that not a shadow, not a gradation, was to be seen in our manufactured light. The Nautilus remained motionless, the force of its screw subdued by the inclination of its planes: the instrument was propped on the bottom of the oceanic site, and in a few seconds we had obtained a perfect negative, from which may be seen those primitive rocks, which have never looked upon the light of heaven; that lowest granite which forms the foundation of the globe; those deep grottoes, woven in the stony mass whose outlines were of such sharpness, and the border lines of which are marked in black, as if done by the brush of
