[ 3:> ] 



mile and half. The hm efumate, or ra- 

 ther llippQlition of the expence, was 

 10,00c/. but it is now faid that tliat fum 

 will prove very infiifficient ; the immen- 

 fity of the undertaking not having (rela- 

 tive to the ellimate) been duly confiiered. 



It is certainly an amazing work j about 

 four hundred yards of it are hniflied. The 

 method of working, is linking ihafts like 

 thofe of coal pits, in a line over the courie 

 of the canal ; engines are then erected, 

 and the earth, rock, coal, and all the fub- 

 ftances that rife, drawn up by a horfe, which 

 is kept regularly employed in drawing up 

 the ItutT, as fait as the workmen dig it be- 

 low, in hollowing out the cavern : It is 

 walled, paved, and arched, a= they nniili. 

 Other machines, worked bv wind and wa- 

 ter, are ere<lted alfo to draw up the water : 

 The whole work is carried on regularly, 

 and all obftruCtions removed as fait as they 

 are difcovered. In a word, the lucceis of 

 the work is not doubted ; but as to the 

 extent of the expence, it cannot admit of 

 calculation, as it is impotiible to ccnjecflure 

 the nature of the llrata they will have to 

 cut through, the hardnefs of the rock, or 

 the Quantities cr v/ater with which they 

 X JL v.- ill 



