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LETTER IX. 



T FLATTER myfelf, that the preceding 

 ^ calculations will fufiice to fet the im- 

 provement of one fort of moor land in a 

 clear light : in that light every landlord 

 ought to view it, before he undertakes the 

 bufmefs, that he may be (Irongly impreficd 

 with the neceffity of applying a fufficient 

 fum of money to the work, and, with the 

 certainty of immenfe profit, takes that ne- 

 cefTary precaution. 1 proceed, in the next 

 place, to calculate the improvement of an- 

 other fort of moor ; viz. the fame as the 

 preceding, except the circumilance of ftone 

 that is found either ii[)on, or under the 

 furface in' quarries, being limeftone. This 

 variation is very important, and will give 

 rife to new combinations in every particu- 

 lar; dillindfions of this nature are abfo- 

 lutely requifite: for if a gentleman, from 

 an accurate eftimate of improving the grit- 

 ftene moors, 5 or 6 miles from lime, de- 

 termines to improve a limelione moor, he 



will 



