APPENDIX. 37^ 



of wliich little mention has been madeliere^ be* 

 cause the attention has not been turned upon novel- 

 ty but use, being found to belong to a kind of milk* 

 v»^ort^ or polygala. The roots of the coraraon 



Ik 



ing tried, have been 



found to possess the same virtues^ though in a 

 less degree. This plant vrould not have been re* 



not been found to be of 

 at we owe the knowledge 



t,«-.*v.v,, .. ...^ w^x.^* had 

 the same kind ; but to tl 

 of its virtues. 



There is this great reason for seeking in our ov^^n 

 climate, plants of the same nature^, and form, and 

 kind, vs^ith those which in other countries afford 

 us remedies ; that they are generally of the same 

 kind, and maybe fitter for our constitutions. This 

 is certain^ that as the sun ripens the juices of plants 

 in hotter countries to more virtue than with us^ 

 so it makes men's constitutions more able to bear 

 their effects. 



The Chinese will swallow such doses as are 

 poison to one of us. This we know in many in- 

 stances, and it ought to encourage us in the pre- 

 :;ent research ; because, if the same doses which 

 agree with them, are too much for us ; we may 

 also iindj that other medicines, of the same kind 

 of virtues, though in a less degree, may also 

 be found to agree better with our constitutions. 

 I would not carry so far as some have done, that 

 opinion of nature's having provided in every 

 country the remedies for the diseases of that coun- 

 try : God is the author of nature, and he know- 

 ing there would be commerce among mankind, 

 knew that would not be necessary. But not- 

 withstanding that it may be necessary in some 



and convenient in many, f 



cases, 



from abroad. 



fi 



red by those herbs we may find 





