"Who would have ever imagined, William," said Mr. Seagrave, "that this island, and so many more which abound in the Pacific Ocean, could have been raised by the work of little insects not bigger than a pin's head?"
"Insects, father?" replied William.
"Yes, insects. Give me that piece of dead coral, William. Do you see that on every branch there are a hundred little holes? Well, in every one of these little holes once lived a sea-insect; and as these insects increase, so do the branches of the coral-trees."
"Yes, I understand that; but how do you make out that this island was made by them?"
"Almost all the islands in these seas have been made by the labour and increase of these small animals. The coral grows at first at the bottom of the sea, where it is not disturbed by the winds or waves: by degrees, as it increases, it advances higher and higher to the surface, till at last it comes near to the top of the water; then it is stopped in its growth by the force of the winds and waves, which break it off, and of course it never grows above the water, for if it did the animals would die."
"Then how does it become an island?"
"By very slow degrees; the time, perhaps, much depending upon chance: for instance, a log of wood floating about, and covered with barnacles, may ground upon the coral reefs; that would be a sufficient commencement, for it would remain above water, and then shelter the coral to leeward of it, until a flat rock had formed, level with the edge of the water. The sea-birds are always looking for a place to rest upon, and they would soon find it, and then their droppings would, in course of time, form a little patch above water, and other floating substances would be thrown on it; and land-birds, who are blown out to sea, might rest themselves on it, and the seeds from their stomachs, when dropped, would grow into trees or bushes."
"I understand that."
"Well then, William, you observe there is an island commenced, as it were, and, once commenced, it soon increases, for the coral would then be protected to leeward, and grow up fast. Do you observe how the coral reefs extend at this side of the island, where they are protected from the winds and waves; and how different it is on the weather side, which we have just left? Just so the little patch above water protects the corals to leeward, and there the island increases fast; for the birds not only settle on it, hut they make their nests and rear their young, and so every year the soil increases; and then, perhaps, one cocoa-nut in its great outside shell at last is thrown on these little patches - it takes root, and becomes a tree, every year shedding its large branches, which are turned into mould as soon as they decay, and then dropping its nuts, which again take root and grow in this mould; and thus they continue, season after season, and year after year, until the island becomes as large and as thickly covered with trees as the one we are now standing upon. Is not this wonderful, my dear boy? Is not he a great and good God who can make such minute animals as these work his pleasure, and at the time he thinks fit produce such a beautiful island as this?"
"Indeed he is!" exclaimed William.
"We only need use our eyes, William, and we shall love as well as adore. Look at that shell - is it not beautifully marked? - could the best painter in the world equal its colouring?"
"No, indeed, - I should think not."
"And yet there are thousands of them in sight, and perhaps millions more in the water. They have not been coloured in this way to be admired, like the works of man; for this island has been till now probably without any one upon it, and no one has ever seen them. It makes no difference to Him, who has but to wish, and all is complete."
For a few minutes after this conversation, Mr. Seagrave and William were both silent. Mr. Seagrave then rose from where he was sitting:
"Come, William, let us now find our way back again; we have three hours' daylight left, and shall be home in good time."
