Possibility of Destroying Weeds. 31 



but in whatever way it may be done, it will 

 cost several times more per acre than the 

 sum actually paid per acre for spudding 

 during the three years in which the Onta- 

 rio Agricultural Experiment Station at 

 Guelph was being freed from weeds. 



J. IV hen noxious zveeds are once eradi- 

 cated, it zvili be easily possible, zvith but 

 little outlay, to keep, them in check. This 

 proposition is so reasonable that it should 

 scarcely require any argument to demon- 

 strate its correctness. Nevertheless, it is 

 one which runs strangely counter to popu- 

 lar opinion. We find many ready to say 

 that the task is a hopeless one, that weeds 

 will continue to come through all time, and 

 that to keep them completely under control 

 will be found a process costly out of all 

 proportion to the benefits accruing. That 

 noxious weeds, even when once eradicated, 

 will come again is certainly true, and that 

 they will keep coming is equally true, but 

 that it will cost more to keep them wholly 

 banished than only partially banished is 

 altogether illogical. 



Such reasoning would involve the unten- 

 able assumption that when weeds are plen- 

 tiful they are relatively easier to fight than 



