[ i68 ] 



to be three hundred and forty yards below the earth's fur- 

 face. 



It would not be difEcult to perceive, before any coals were 

 got, that this tradl of land contained feams or bands of coal, 

 becaufe the Bannock or thii-d feam, and the Main-band or 

 fourth fean:i, before mentioned, have burfl: out, as it is termed 

 at Whitehaven ; that is, they fliew themfelves in feveral places 

 on the floping furface of the earth, on the weft fide of the 

 valley leading from Whitehaven to St. Bees. To the fouth- 

 ward of this colliery thefe feams of coal are alfb thrown much 

 nearer the furface by what is called upcaft dykes (words which 

 will be hereafter explained) the largeft of which is about 

 forty yards. 



At a pit called Wilfon's pit, which is the moft fouthern pit 

 in this colliery, the main band or fourth feam before-mentioned 

 lies only about one hundred and forty yards below the furface ; 

 whereas at King-pit, as before ftated, it lies one hundred yards 

 deeper, or about two hundred and forty yards. 



It appears that at the firft beginning to work this colliery 

 a level or watercourfe has been driven from the rivulet called 

 Powbeck, near the copperas work, to the fouth of the town 

 about three hundred yards. 



The courfe of this level is to the full dip or defcent of the 

 colliery, which is nearly due weft, until it cuts or interfeds 



the 



