( 190 ) 



to wonder, that an infect lays its eggs near the body of anotner, 

 while in an aureUa ftate, where the young maggots may find nou« 

 riftiment. And lallly, if we fee in quadrupeds, that many wild 

 beafts have no other food than the bodies of thofe hearts which 

 they devour, that there are many birds who feed only upon birdsj 

 and that the fame almort univerfally obtains in fifties, it will not 

 appear ftrange to us, that among minute flying animals, fome feed 

 on others. 



I caufcd a drawing to be made of this very minute Ipecies of Fly, 

 the fize it appears to the naked eye, w hich is fliewn ^tjig. 22, with 

 a circle round it to make it more apparent ; for I murt confefs, that 

 when viewing it through the common fpedlacles with which I 

 write, I could not difcover it to be a Fly. At fig. 23, A B C D, 1 

 have given a reprefentation of one of the wings of this Fly, as feen 

 through the microfcope, in order to fbew the wonderful forma- 

 tion of fo minute an animal. Thefe wings, which are four in 

 number, are covered both on the edges and on their furface, with 

 a great number of hairs, terminating in points, Uke thofe on our 

 hands. 



One of thefe minute Flies I placed before a microfcope of much 

 lefs magnifying power than that from which the wing was drawn ; 

 by this we fee it to have two pretty horns on its head, each com- 

 pofed of many joints, and every joint covered with hairs. And 

 in contemplating the horns, I took notice of the eyes, wherein I 

 plainly perceived many optical organs of which each eye con- 

 filled, as we obferve in larger Flies. All thefe objed:5 are rcpre- 

 fentedat/^. 24, EFGHI. 



In contemplating fuch minute animals as this, and confidering 

 that no part of them is made in vain, but that every one has its ufe, 

 we fee rtiU further reafon to admire the perfedion of fo minute a 

 creature. And when we fee the ftupcndous wifdoni of Nature't* 

 operations in the greatell, and in the lead of her productions, we 

 may well crj^ out again arid again, *' Away with the blind croakings 



