mouth, and hold it whilst eating. Mr. Barbu supposes they arc the organs of smell, because they arc always in motion; the insect thrusting them continually into every soft substance that lies in its way, apparently to examine whethm it be proper for food. it is possible they may be furnished with nerves, like the snout of the hog, or the bill of the duck, for the same ppOS in the form and disposition of the mouth, Na tare has displayed great variety ; it is mostly placed in the lower part of the head, sometime in the breast in the beetle tribe, a 1(1 others, it has very strong jaws, often notched on tin' inner side, somewhat like teeth, in some, the mouth consists of a tube, or instrument fi.sr suction, sometimes sheathed and guarded by different kthds of appendages. It is rcmark able that the jaws of insects do not meet, like those of quadrupeds and birds, crosswise, but lengthwise. They have also a tongue and palate. But many insects have no tongue, nor do they utter any sound from their mouth: for this purpose some use their feet, others their wings, and others some elastic instrument pecu liar to their kind.

The most curious and surprising part et insects is their eyes, which, in the same crea lure, arc often of several kinds. Besides the two eyes placed on each side of the head, whica

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