p 



%. 



k 



HUTTONIAN THEORY. 



e* 



k. 



S'^S 



lall, in Ayrfhire, wh 



on th 



thority 



f 



1 



Dr Kennedy, wh 



h 



d it with 



lie 



g 



«li. 



II 



S K 



coal 



» 



Q 



M 



i n\ 



n./' 





Cuuflec 





be alio (!! 

 h toe cti^ 



jT' 



Is' 



J 



iJ,"' 



ft 



fl;. 



> 



#": 



care, I can ftate as being contained, or enve- 

 loped in whinftone ; and I hope the public will 



foon be favoured with a partic 



defers pt 



of this very interefting fpot, by the fame inge 

 nious and accurate obferver. 



6g. Th 



th 



mineralogical and chemical 



difcoveries agree in reprefenting coal, blind coal, 

 plombagine, plumbago, as all modifications of 

 the fame fubftance, and as exhibiting the fame 



lefs 



'*^ 2s it principle, carbon, in a ftate of greater or 



mbi 



As the 



lad and higheft term of 

 this feries fliould be placed the diamond ; but 

 ; :e2l| we are yet unacquainted with the matrix of this 



curious foffil, and its geological relation to other 



When known, they will probably 



minerals. 



give to this fubftance the fame place in the geo- 

 logical, as in the chemical arrangement : in the 



mean time, it is hardly 



ifary to 



rk 



how well all the preceding fads agree with the 

 hypothefis of the igneous formation ( 



f wh 



[oW'i ilone, and how anomalous and unconneded they 



appear, according to every other theory 



7 



Notwithftanding 



evidei 



all this accumulated 



■ _L 



and unanfwerable evidence for the igneous for- 

 mation of bafaltes, a great objedtion would ftill 

 remain to our theory, were it not for the very 



accurate and i:oncIufi 



U 



xperiments concern- 

 ing 



A 



I 



