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KEELING ISLAND.

dry land, and grows to a monstrous size. The front pair of legs end in very strong and heavy pincers, and the last pair are fitted with others weaker and much narrower. It would at first be thought quite impossible for a crab to open a strong cocoa-nut covered with the husk; but Mr. Liesk assures me that he has repeatedly seen this done. The crab begins by tearing the husk, fibre by fibre, and always from that end under which the three eye-holes are situated; when this is completed, the crab commences hammering with its heavy claws on one of the eye-holes till an opening is made. Then, turning round its body, by the aid of its narrow pincers behind it draws out the white meat. I think this is as curious a case of instinct as I ever heard of, and likewise of adaptation in structure between two objects apparently so unconnected by nature as a crab and a cocoa-nut tree. These crabs inhabit deep burrows, which they hollow out beneath the roots of trees, and where they accumulate surprising quantities of the picked fibres of the cocoa-nut husk, on which they rest as on a bed. They are very good to eat; moreover, under the tail of the larger ones there is a great mass of fat, which, when melted, sometimes yields as much as a quart bottle full of clear oil. To show the wonderful strength of the front pair of pincers, I may mention that Captain Moresby shut one up in a strong tin box, which had held biscuits, the lid being secured with wire; but the crab turned down the edges and escaped. In turning down the edges it actually punched many small holes quite through the tin.

II.

MAN.

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