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before, of 27 per cent, to the article Labour; 

 and this variation, from my former condud, 

 is occafioned by the paucity of experi- 

 ments on uncuUivated foils. To fupoofe 

 the cultivation of cabbages, carrots, lucerne 

 &c. on foils in which there is no authentic 

 account of their having fucceeded, would 

 be to leave the fure ground of experience 

 and certainty, for the airy regions of fancy 

 and conje6ture. There can be no doubt of 

 carrots fucceeding in a certain degree on 

 the lighted fands, or of cabbages anfwering 

 excellently on drained bogs ; but, except- 

 ing one experiment of the Marquis of 

 Tourbilli in France, there are no fadls to 

 prove either of thefe fuppofitions ; for 

 which reafon I rejed: them from the enfuing 

 caculations; fo that the crops in thefe farms 

 will be the fame both to the gentleman and 

 the farmer. 



A variation from the former book will, 

 in another point, be found here ; which is 

 the improvement for letting^ as well as 

 fanning. This is not confined to gentlemen ; 

 I fhall, therefore, fuppofe the farmer to havs 

 the advantage (as he certainly may at all 

 times in reality) as well as the gentleman. 



X3 I 



