We must not finish the history of the grub without saying a few words on its internal structure. Anatomy will show us the works wherein the cement employed in so original a manner is manufactured. The stomach or chylific ventricle is a long, thick cylinder, starting from the creature’s neck after a very short gullet. It measures about three times the length of the animal. In its last quarter, it carries a voluminous lateral pouch distended by the food. This is a subsidiary stomach in which the supplies are stored so as to yield their nutritive principles more thoroughly. The chylific ventricle is much too long to lie straight in the grub’s bowels and bends back upon itself, in front of its appendix, in the form of a large loop occupying the dorsal surface. It is to contain this loop and the lateral pouch that the back is swollen into a protuberance. The grub’s wallet is, therefore, a second paunch, an annexe, as it were, of the stomach, which is itself incapable of holding the voluminous digestive apparatus. Four very fine, very long tubulures, irregularly entwined, four Malpighian vessels mark the limits of the chylific ventricle. Next comes the intestine, narrow, cylindrical, rising forwards. The intestine is followed by the rectum, which pushes backwards. This latter, which is of exceptional size and fitted with powerful walls, is wrinkled across, bloated and distended by its contents. Here is the roomy warehouse in which the scoriæ of the digestion accumulate; here is the mighty ejaculator, always ready to provide cement. The grub gets bigger as it eats the wall of its house from the inside. Little by little, the belly of the pear is scooped out into a cell whose capacity grows in proportion to the growth of the inhabitant. Ensconced in its hermitage, furnished with board and lodging, the recluse waxes stout and fat. What more does it want? In four or five weeks, the complete development is obtained. The apartment is ready. The worm sheds its skin and becomes a chrysalis. There are very few in the entomological world to vie in sober beauty with the tender creature which, with its wing-cases laid in front of it like a wide-creased scarf and its fore-legs folded under its head, as when the full-grown Scarab counterfeits death, suggests the idea of a mummy maintained by its bandages in a sacerdotal pose. Semi-translucent and honey-yellow, it looks as though it were cut from a block of amber. Imagine it hardened in this state, mineralized, made incorruptible: it would be a splendid topaz jewel.