Z2 Weeds. 



when they are few, and that while it would 

 be a wise and commendable course to 

 reduce the number of weeds on a farm, 

 there is a limit beyond which further reduc- 

 tion ought not to go. 



If a farm that is very dirty can be made 

 partially clean with advantage to the 

 farmer, it seems reasonable to think that 

 to go a step farther and to render it alto- 

 gether clean would be a still greater advan- 

 tage, and that if a farm can be partially 

 cleaned and yield profit to the owner, this 

 profit will not only be correspondingly 

 greater if the farm be perfectly cleaned, 

 but that the labor and cost of maintaining 

 cleanliness will continually decrease with 

 the increasing perfection of the cleanliness. 



It may be well to state here that the term 

 "clean," as applied to freedom from the 

 presence of noxious weeds on farms, is 

 necessarily used in this work in a relative 

 sense. So long as weed seeds are carried 

 from place to place by means of such agen- 

 cies as birds, waters, and winds, we shall 

 never be able to say that a farm is abso- 

 lutely clean. Though one year it were to 

 be made perfectly free from noxious weeds, 

 the following year a number of weeds 



