ON THE COAL-FORMATION 



curately ascertained, and that to a greater depth 

 than in any other place of the county. 



In order to give a clear and distinct view of the 

 structure and materials of the district, the follow- 

 ing section has been drawn up in the tabular 

 form. All the various strata are precisely laid 

 down from actual measurement, and in their natu- 

 ral order. On the right hand side are columns 

 of fathoms, feet and inches, shewing the thick- 

 ness of each individual stratum. There are also, 

 two columns, containing the common provincial 

 names of each, with the corresponding systematic 

 or Wernerian names. 



The whole depth is 1 1 7 fathoms two feet, equal 

 to 704 feet, the fathom containing six feet English 

 measure. The alternating strata are 141 in num- 

 ber. 



Below No. 141. no accurate borings have ever 

 been made, upon which any confidence can be 

 placed. In the section are 24 seams or beds of 

 coal, from two inches to nine feet in thickness, 

 the whole of which, when added together, amount 

 to 59 feet 4 inches of coal. 



These coals are either slate-coal, or cubical 

 coal ; a few of them are altogether slate-coal, but 

 generally they are composed of a mixture of both 

 kinds. 



With respect to quality, they are all of the 

 open burning kind, having little or no tendency 



