I90 OFTHEUSE 



Europe, and therefore could be eafily knowii^ 

 and ranged. 



He that knows but a few plants gives cha- 

 ra6lers, which are eafy to find out, but are in- 

 fufRcient to fettle any thing ; and therefore 

 tend to confound, rather than to advance know- 

 ledge i fo that the natural method is the 

 ultimate end of our fyflematical inquiries. 

 Without this all is a mere chaos, and if the 

 knowledge of vegetables fails, all that ufe of 

 them is gone, which the learned in this way 

 might difcover to the great benefit of man- 

 kind. 



It is true indeed that vegetables adl upon 

 the human body by fmell, and rafte •, but thefe 

 marks are not fufficient unlefs we know the 

 natural orders of plants. 



Thefe being known, and the vertues of 

 fome vegetables being difcovered, we may go 

 on fafely in the pra6tice of phyfic, otherwife not. 

 It follows from hence, that he who defires 

 to make any confiderable improvement in this 

 branch of knowledge, mufl endeavor to get 

 acquainted v/ith thofe plants, whole ufe he does 

 not know ; and thus he is obliged not to ne^ 

 gled the mofb contemptible, e. g. no body 



was 

 2 



