Microscopical Essays. 



dually formed under the (kin of the animal, and only appear 

 hidden to us, becaufe the infeft then gets rid of a cafe which had 

 before concealed his real members. Thefe transformations 

 clearly prove, that without repeated experience every thing in 

 nature would appear a myftery : for who, on confidering by the 

 mere light of nature or reafon a gnat or butterfly in their fly or 

 perfect itate, could have difcovered the relation which in this 

 flate and form it bears to the feveral changes of flate, and their 

 correfponding forms, through which it has paffed,* and which are 

 to appearance as diilinH as difference can make them. 



The life of thofe infects which pafs through thefe various 

 changes, maybe divided into four principal parts, each of which 

 will be found truly worthy of all the attention of the microfcopic 

 obferver. 



The firft change is from the egg into the larva ; or, as it is 

 more generally called, into the worm or caterpillar. 



From the larva itpafles into the pupa, or-ehryfalis flate. v 



From the pupa into the imago or fly flate. 



Few fubjefts can be found that are more expreflive of the ex* 

 tenfive goodnefs of Divine Providence, than thefe transformations, 

 in which we find the occafionaJ and temporary parts and organs 



of 



* All is phenomenon, and type on earth, 

 {Replete with facred and myfterious birth. 



Brooke's Univerfal Beauty, b. v.. 



