360 The Conchfion. 



vations give us any farther infight into the 

 nature of plants, they will then doubtlefs 

 be of fome ufe in Agriculture and Garden- 

 ing, either by ferving to re&ify fome miftaken 

 notions, or by helping farther to explain the 

 reafons of many kinds of culture, which 

 long repeated experience has found to be good> 

 and perhaps by leading us to make fome advan- 

 ces therein : But as it requires a long feries and 

 great variety of frequently repeated Experi- 

 ments and Obfervations, to make a very 

 fmall advance in the knowledge of the 

 nature of vegetables \ fo proportionably we 

 are from thence only to exped fome gradual 

 improvements in the culture of them. 



-The fpecifick differences of vegetables, 

 which are all fuftained and grow from the 

 famenourifhment, is doubtlefs owing to the 

 very different formation of their minute 

 veiTels, whereby an almoft infinite variety of 

 combinations of the common principles of 

 vegetables is made 5 whence fome abound 

 more with fome principles and fome with 

 others. Hence fome are of a warmer and more 

 fulphureous, others of a more watry, faline, 

 therefore colder nature $ fome of a more 

 firm and lafting, others of a more lax and 

 perifhable conftitution, Hence alfo it is that 



fome 



