His impatience usually dragged Ulysses back to the hotel in order to beg information of the porter. Animated by the hope of a new bill, the flunkey would go to the telephone and inquire of the servants on the upper floor. And then with a sad and obsequious smile, as though lamenting his own words: "The signora is not in. The signora has passed the night outside of the albergo." And Ferragut would go away furious.

Sometimes he would go to see how the repairs were getting on in his boat,—an excellent pretext for venting his wrath on somebody. On other mornings he would go to the garden of the beach of Chiaja,—to the very same places through which he had strolled with Freya. He was always looking for her to appear from one moment to another. Everything 'round about suggested some reminder of her. Trees and benches, pavements and electric lights knew her perfectly because of having formed a part of her regular walk.

Becoming convinced that he was waiting in vain, a last hope made him glance toward the white building of the Aquarium. Freya had frequently mentioned it. She was accustomed to amuse herself, oftentimes passing entire hours there, contemplating the life of the inhabitants of the sea. And Ferragut blinked involuntarily as he passed rapidly from the garden boiling under the sun into the shadow of the damp galleries with no other illumination than that of the daylight which penetrated to the interior of the Aquarium,—a light that, seen through the water and the glass, took on a mysterious tone, the green and diffused tint of the subsea depths.

This visit enabled him to kill time more placidly. There came to his mind old readings confirmed now by direct vision. He was not the kind of sailor that sails along regardless of what exists under his keel. He wanted to know the mysteries of the immense blue palace over whose roof he was usually navigating, devoting himself to the study of oceanography, the most recent of sciences.

Upon taking his first steps in the Aquarium, he immediately pictured the marine depths which exploration had divided and charted so unequally. Near the shores, in the zone called "the littoral" where the rivers empty, the materials of nourishment were accumulated by the impulse of the tides and currents, and there flourished sub-aquatic vegetation. This was the zone of the great fish and reached down to within two hundred fathoms of the bottom,—a depth to which the sun's rays never penetrate. Beyond that there was no light; plant life disappeared and with it the herbivorous animals.

The submarine grade, a gentle one down to this point, now becomes very steep, descending rapidly to the oceanic abysses,—that immense mass of water (almost the entire ocean), without light, without waves, without tides, without currents, without oscillations of temperature, which is called the "abyssal" zone.

In the littoral, the waters, healthfully agitated, vary in saltiness according to the proximity of the rivers. The rocks and deeps are covered with a vegetation which is green near the surface, becoming darker and darker, even turning to a dark red and brassy yellow as it gets further from the light. In this oceanic paradise of nutritive and luminous waters charged with bacteria and microscopic nourishment, life is developed in exuberance. In spite of the continual traps of the fishermen, the marine herds keep themselves intact because of their infinite powers of reproduction.

The fauna of the abyssal depths where the lack of light makes all vegetation impossible, is largely carnivorous, the weak inhabitants usually devouring the residuum and dead animals that come down from the surface. The strong ones, in their turn, nourish themselves on the concentrated sustenance of the little cannibals.

The bottom of the ocean, a monotonous desert of mud and sand, the accumulated sediment of hundreds of centuries, has occasional oases of strange vegetation. These grove-like growths spring up like spots of light just where the meeting of the surface currents rain down a manna of diminutive dead bodies. The twisted limestone plants, hard as stone, are really not plants at all, but animals. Their leaves are simply inert and treacherous tentacles which contract very suddenly, and their flowers, avid mouths, which bend over their prey, and suck it in through their gluttonous openings.

A fantastic light streaks this world of darkness with multicolored shafts, animal light produced by living organisms. In the lowest abysses sightless creatures are very scarce, contrary to the common opinion, which imagines that almost all of them lack eyes because of their distance from the sun. The filaments of the carnivorous trees are garlands of lamps; the eyes of the hunting animals, electric globes; the insignificant bacteria, light-producing little glands all of which open or close with phosphorescent switches according to the necessity of the moment,—sometimes in order to persecute and devour, and at others in order to keep themselves hidden in the shadows.