47 



economy, and sooner or later the onus of maintaining the 

 necessary equilibrium devolves upon those who attempt it. 

 A careful observer of results and appearances may frequent- 

 ly make a shrewd guess as to causes, and it behoves all those 

 who have old Estates from time to time, by experience, judg- 

 ment and forethought to endeavour in every way in their 

 power to obviate the inevitable results which the uninter- 

 rupted cultivation of a special crop is calculated to induce. 



