32i Of Vegetation. 



age, when their quantity of oil is increafed, 

 with their greater maturity. 



Whence we find that nature's chief bufi- 

 nefs, in bringing the parts of a vegetable, 

 efpecially its fruit and feed to maturity, is 

 to combine together in a due proportion, 

 the more active and noble principles of ful- 

 phur and air, that chiefly conftitute oil, 

 which in its mod refined ftate is never found 

 without fome degree of earth and fait in it. 



And the more perfect this maturity is, the 

 more firmly are thefe noble principles united. 

 Thus Rhenifh Wines, which grow in a more 

 northern climate, are found to yield their 

 Tartar, i. e. by Exper. 73. their incorpora- 

 ted air and fuiphur in greater plenty, than 

 the ftronger Wines of hotter countries, in 

 which thefe generous principles are more 

 firmly united : And particularly in Madera 

 Wine, they are fixt to fuch a degree, that 

 that Wine requires a confiderabie degree of 

 warmth, fuch as would foure many other 

 Wines, to keep it in order, and give it a 

 generous taftc ; and 'tis from the fame rea- 

 fon, that fmall French Wines are found to 

 yield more fpirit in diftillation, than ftrong 

 Sganijh Wines- . But 



