32 



ILLUSTRATIONS OF THE 



neceflary it Is, in 



all 



particularly in a fubjedl: fo compl 



du^live reafoning 



d 



to feparate 

 of two fol 



geology 



with care fuch phenomena as ad 



from fuch as adm 



only of 



one. 



8. The bituminous ft 



come next to be 



fidered 



d 



they are of great confeq 



the prefent argument, becaufe their diffimi 



larity in fo many partic 



to 



oth 



fubftances. rend 



them what Lord B 



1 



njlantia Jingularis, having the firft rank 



among fads fubfervi 

 tion. But though u 



t to indu6live inveftiga- 

 ke in fubftance to other 



foflils, and compofed, as has been fhewn, of ma 

 terials that belonged not originally to the mine 



ral king 



they agree in many m 



ftances with the ftrata already enumerated 



Their beds are difpofed in th 



fam 



manner, 



and are alternated indifcriminately with thofe 

 of all the fecondary rocks, and, being formed 



in 



th 



fame 



region 



the fame accid 



muft ha 

 and have 



f 



fam 



been fubjed ti 

 idured the ope 



ufes 



They are traverfed 



too like ;he other ftrata, by veins of all the me- 

 tals, of fpar, of bafaltes, and of other fubftances ; 

 and, whatever argument may hereafter be de- 



4 



rived from this to prove the adion of fire on 

 the ftrata fo traverfed, is as much applicable 



to coal as to any other mineral. The coal ftra- 



ta 



% 



