( 46 ) 



But the great point to be attended to is 

 the nature of the walls ; for many that I 

 have feen would coft as much to keep them 

 in repair as almoft the worft of hedges. 

 Such as are built of lime-ftones, and fhiver 

 out of the quarry in fmall pieces, are very 

 bad, and will fall upon very trifling 

 aflaults, and even by high winds. Thefe 

 walls are a rent-charge to tenants. 



On the contrary, thofe that are cut into 

 the form of bricks, only larger and laid 

 even together in courfes, will ftand as long 

 as a brick-wall, though raifed without 

 mortar. 



Likewife large pieces of rough grit ftone, 

 that will not burn into lime, make excel- 

 lent walls, and have a great firmnefs from 

 their roughnefs, which holds them to- 

 gether. 



A diftindion mould always be made be- 

 tween thefe kinds ; the two laft will ftand 

 an hundred years, as well as many hours; 

 but the former fort are very expenfive in 

 repairs. Proper eftimates, in thefe cafes, 

 fhould always be made, that a farmer may 

 know with fome regularity his future 

 expences. 



Another 



