7 APPENDIX. 



the covering i indeed the longer the better, in order to 

 give the bog time to fubfide, and to acquire a vegetable 

 lurfr.ee of fome fort, to prevent the hard materials 

 from finking. When the bog is brought to the wifhed- 

 f or lhape for laying on the clay or gravel (the latter is 

 certainly the belt, and the coarfer the better), a num-' 

 ber of flakes are put down in parallel lines, at about 

 ten feet apart, or nearer (for accuracy, the clofer the 

 better), leaving only four inches of them to appear 

 above the furface ; the covering fluff is then laid on, 

 to be equal to the tops of the flakes. It is eafy to ex- 

 amine the flakes after the foil is laid on, where any 

 fufpicion may arife ; but, as it is fo eafily detected, 

 there is feldom any advantage taken by the tafkers, 

 and the more fo, as a penalty is always in flirted where 

 there is the leaft appearance of fraud. I fliould have 

 remarked before, that the white meadow grafs is fown 

 in large quantities on the bogs, after being levelled, 

 and previous to the laying on of the clay or gravel, 

 which feldom fails to produce a permanent and flrong 

 furface, capable of preventing the hard materials from 

 finking. 

 1 To enumerate the different works, carried on by 



talk throughout the dcmefne of Rafh and its environs, 



i 

 would fwell this article far beyond my prefcnt plan ; I 



ftwll, therefore, only give a general hint howto afcer- 

 tain a reafonablc price. 



It 



