S3 



formed of some glutinous matter, transuding through 

 its pores. In the end of June they gnaw through the 

 shells and hammocks, and come forth a most beautiful 

 fly. After its resurrection it needs no food. Those 

 that came out in a room lived as long there as the rest 

 did abroad. After awhile several of them discharged 

 a drop of brown liquor, probably containing the egg ; 

 but as it was not lodged in a proper receptacle, it pro* 

 duced no worm the next year. 



As the cornel only supplies this worm with food, so 

 it is the only nurse of its egg. There is not an animal 

 or a vegetable but yields habitation and food to its pe 

 culiar insect. The scheme of life begins in vegetation ; 

 and whenever nature produces vegetables, she obliges 

 them to pay for their nourishment, to certain animals 

 vhicfe she billets upon them. Each of these again is 

 to diet and lodge another set of living creatures. This 

 just community in nature, which suffers nothing to 

 subsist merely for itself, is found not only every where 

 on the earth, but likewise every where in the waters. 

 By microscopes we discover an infinity of little crea- 

 tures feeding on the floating vegetables, or ou one 

 another. Indeed, as to the sea, we know only what 

 happens near the shores, where we find vegerables of 

 Tarious kinds, which breed and nourish alike variety 

 of insects. These, with a multitude of others bred in 

 the mud, are the prey of the smaller kinds of fish, and 

 they again of a greater. That this scheme of nature, 

 found every where else, dives into the depths of the 

 ocean, we may gather from the wonderful kind of 

 fishes washed up by the storms now and then from the 

 deep waters. 



Now it is on the cornel alone that the wonns we 

 have sp( ken of can be propagated and fed. The spe- 

 cific qualities with which its juices are impregnated, 

 are peculiarly suitable to this insect. If these reside 

 in the essential oil of the plant, this as well as the 

 other insects subsisting on vegetables, have the ^kill to 

 extract, nicer than any chemist c?n do, the essential 

 oil of each plant, nothing else therein, biiog oi a nature 



