520 



ILLUSTRATIONS OF THE 



f admitted 



s 



fad 



therefo 



fuall 



that fuch 



flowed not only at tin 

 in the bowels of the 

 forced up through the 



inadequate to account for the 

 plained by it. He conceived, 



lava as the preceding had 



bottom of 



earth, 



filTures 



fe 



b 



id having been 

 f rocks already 



formed, had heaved up fome of thefe rocks, and 



interpofed itfelf between 

 with the other fads in the n 

 of the bafaltes and the ftrata 



them 



Th 



agrees 



hiftory both 



It is plain, that, in this, there is a g 



eat ap- 

 proach of the two theories to one another : both 



maintain the igneous origin of bafaltes, and its 

 affinity to lava ; 



r 



va cannot have 

 the ftrata which 



I 



the bottom of th 



both acknowledge that this la- 

 flowed at the furface, and that 



fea 



it have b 

 They < 



formed 



th 



nly diffe 



mode in which the fubmarine or fubterra 



neous volcano produced its efFed, and that dif 



J 



ference arifes merely from the one geologifl ha- 



generalized more than the oth 



Dolo 



mieu fought to conned the bafalt with th 



fi 



r . 1 



that proceed from volcanic explolions at the 

 face ; Dv Hutton fought not only to conned 

 fc two appearances with one another, but al- 



fo with th 



other pi 



f 



ogy 



particularly with the veins of bafaltes. and the 



f theft 



r H 



454- In 



il 



c 

 tl 

 1 

 d 



c: 



1*r 



re 



al 



to 



Ul 



th 

 th 

 of 

 m 



ed 

 er 

 gi 

 of 



a 



ca 



