3 66 



The Conclufwri. 



fulphureous and aereal particles, with whicH 

 common dung, lime, allies, fword, or burn- 

 bated turf abound : As alfo fuch manures 

 as have nitrous and other falts in them ; for 

 tho* neither nitre nor common fait be found 

 in vegetables > yet fincc they are obfervcd 

 to promote fertility, it is reafonablc to con- 

 clude, that their texture is greatly altered 

 in vegetation, by having their acid volatile 

 falts fcparated from the attracting central 

 air and earthy particles, and thereby mak- 

 ing new combinations with the nutritive 

 juice ; and the probability of this is further 

 confirmed from the great plenty of air and 

 volatile fait, which is found in another com- 

 bination of them, viz. in the Tartar of fer- 

 menting liquors : For it is the opinion of 

 Chymifts, that there is but one volatile fait 

 in nature, out of which all other kinds of 

 falts are formed by very different combi- 

 nations, all which nutritive principles do 

 by various combinations with the cultivated 

 earth, compofe that nutritive ductile mat- 

 ter, out of which the parts of vegetables 

 are formed, and without which the watry 

 vehicle alone cannot render a barren ''foil 



fruitful. 



i No? 



! 



