As we were running along the land, sufficiently near for its influence to be felt upon the trade-winds, it became nearly calm during the night, the land and sea breezes, each struggling for the mastery, and thus neutralizing each other's forces. The steamer sprang forward with renewed speed, and when the day dawned the next morning, we were far to windward of Laguayra. The sun rose in a sky, without a cloud, and the wind did not freshen, as the day advanced, so much as it had done the day before. The mountains of Venezuela lay sleeping in the distance, robed in a mantle of heavenly blue, numerous sea-birds were on the wing, and the sail of a fishing-boat, here and there, added picturesqueness to the scene. At half-past nine, we gave chase to a fore-and-aft schooner, which proved to be a Venezuela coaster.
In the afternoon, we passed sufficiently near the island of Tortuga, to run over some of its coral banks. The sun was declining behind the yet visible mountains, and the sea breeze had died away to nearly a calm, leaving the bright, and sparkling waters, with a mirrored surface. We now entered upon a scene of transcendent beauty, but the beauty was that of the deep, and not of the surface landscape. The reader is familiar with the history of the coral insect, that patient little stone-mason of the deep, which, though scarcely visible through the microscope, lays the foundations of islands, and of continents. The little coralline sometimes commences its work, hundreds of fathoms down in the deep sea, and working patiently, and laboriously, day and night, night and day, week after week, month after month, year after year, and century after century, finally brings its structure to the surface.
When its tiny blocks of lime-stone, which it has secreted from the salts of the sea, have been piled so high, that the tides now cover the structure, and now leave it dry, the little toiler of the sea, having performed the functions prescribed to it by its Creator, dies, and is entombed in a mausoleum more proud than any that could be reared by human hands. The winds, and the clouds now take charge of the new island, or continent, and begin to prepare it for vegetation, and the habitation of man, and animals. The Pacific Ocean, within the tropics is, _par excellence_, the coral sea, and the navigator of that ocean is familiar with the phenomenon, which I am about to describe. In the midst of a clear sky, the mariner sometimes discovers on the verge of the horizon, a light, fleecy cloud, and as he sails toward it, he is surprised to find that it scarcely alters its position. It rises a little, and a little higher, as he approaches it, pretty much as the land would appear to rise, if he were sailing toward it, but that is all. He sails on, and on, and when he has come near the cloud, he is surprised to see under it, a white line of foam, or, maybe a breaker, if there is any undulation in the sea, in a spot where all is represented as deep water on his chart. Examining with his telescope, he now discovers, in the intervals of the foam, caused by the rising and falling of the long, lazy swell, a coral bank, so white as scarcely to be distinguished from the seething and boiling foam. He has discovered the germ of a new island, which in the course of time, and the decrees of Providence, will be covered with forests, and inhabited by men, and animals.