1 84 tte Principles of PartV, 



PART V. 

 SECT. I. 



Of weeds* 



THE laft article which we propofed 

 to confider was, what impediments 

 there were to vegetation, and the 

 methods of removing them. Thefe impe- 

 diments are fuch as either belong to the foil 

 or to the plants. We mall treat of them 

 according to this divifion. 



AMONGST the impediments of the foil, 

 J clafs all fuch vegetables, as, being of no 

 ufe to the farmer, are called weeds, or /- 

 utiles herbce. Thefe become hurtful to the 

 growth of more valuable plants, by con- 

 fuming part of the nourishment. I here 

 clafs alfo thofe roots called wreck in this 

 country, which run through the ground 

 often in fuch plenty, that they bind the 



foil, 



