[ I* : ] 



tfate; and the difficulty of acquiring 

 this knowledge is greater than the in- 

 attentive are aware of ; to inftance in 

 the FJea, an infecl we are fo well ac- 

 quainted with, and which, like moffc 

 others, undergoes three transforma- 

 tions or changes before it arrives to per- 

 fection ; yet not one in a thoufand has 

 feen it in its caterpillar or chrjfalis 

 ftate. From a confideration of the 

 many wonders in this part of nature, 

 in order to avoid confuiion, I find it 

 neceflary, in purfuing what I have far- 

 ther to fay on infects, to follow fome 

 natural order of fyffematic arrange- 

 •ments. 



S E C T. IV. 



In ftudying any fcience, the names 

 made ufe of therein are firft to be learnt, 



without 



