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This eilimate is drawn, as though the 

 whole of the 500 acres were broken up 

 in the firfl year, and brought into condi- 

 tion, to receive the chalk, marl, or clay, 

 the fourth year, as it fhews the advan- 

 tage of this improvement in a clearer 

 manner, than it could otherwife have 

 been done. The fame fcale of calcula- 

 tion may be applied, to a greater, or lefs, 

 proportion of ground. 





CULTURE 



