23° 



Microscopical E ss ays. 



open it's inner coat, and calling it off, efcapes from the prifon in 

 which it was entombed, in the form of a beautiful fly. It is to be 

 obferved here, that there is nothing accidental in the breaking of 

 the outermoft fkin ; but it is perfectly ordained by a conftant 

 order, always happening in the fame manner in all thefe changes : 

 the fkin alfo is, in thofe places where it is broke open, fo eircum- 

 ftanced by the Author of nature, as if joined together by futures. 



When the wings are expanded, the little creature immediately 

 enters into another date of life : for the infect that lived before 

 in water and mud, now vifits the fields and meadows, being 

 tranfported through the air on it's elegant wings.* 



The larva a. queue de rat f (mufea pendula, Lin.) is alfo trans- 

 formed under the IMn, which hardens, and forms a cafe or 

 general covering to the pupa : two horns are pufhed out, while it 

 is in this ftate, from the interior parts ; they ferve the purpofe of 

 refpiration : this larva will be more particularly defcribed in a 

 fubfequent part of this chapter. 



The infects in this elafs, that is, thofe that pafs into the pupa 

 ftate under the fkin of the larva, go. through a change more 

 (according to M. de Reaumur) than the caterpillar, undergoing 

 a change while under their Ikin, before they affume the pupa 

 form. 



The aquatic larva of the mufca chameleon retains it's form to 

 the laft ; but there are many infects that are transformed under 



their. 



* Swammerdam's Book of Nature, pt. 2, p. 58. 



+ Reaum. 8vo. edit, torn, 4, pt. 2, n mem. p. 199, plate 30 and 31, 



