The bubbles of their respiration was the only thing that announced the presence of the liquid.

In the upper part of these aquatic cages, the luminous atmosphere vibrated under a continual spray of transparent dust,--the sea water with air injected into it that was renewing the conditions of existence for these guests of the Aquarium.
Seeing these revivifying streams, the captain admired the nourishing force of the blue water upon which he had passed almost all his life.
Earth lost its pride when compared with the aquatic immensity.

In the ocean had appeared the first manifestations of life, continuing then its evolutionary cycle over the mountains which had also come up from its depths.

If the earth was the mother of man, the sea was his grandmother.
The number of terrestrial animals is most insignificant compared with the maritime ones.

Upon the earth's surface (much smaller than the ocean) the beings occupy only the surface of the soil, and an atmospheric canopy of a certain number of meters.