rt n 



o 



ILLUSTRATIONS OF THE 



ginal i^ofition, it is of confequence to inquire 



:e by which thefe 



into the diredion of 



for 



have been produced. Now, if the d 



ftiirbcd or elevated ft 



w^ere 



b 



thout bending ( 

 J hard to dete 



ry whe 



perhaps 



force had aded in the d 

 or in the 



linuofity 



wheth 



m i ght 

 f that 



oppoflte. 



Either fuppolit 



f gravity 



ould 



for the 



u. 



d. as 



gra\' 



a known force, providing we can find fo 



place fit 

 ward by 



the matter impelled do 



action would furniili th 



vv n - 

 Qoft 



probable folution of the difficulty. 



It is on this principle that the Neptunian fyf- 

 teni proceeds, imagining, that certain great ca- 

 venis or vacuities having been opened in the in- 

 terior of the globe, a great part of the waters 



ich formerly covered its furfa 



d 



them, and much of the folid rock alfo funk do 

 at the fame time. 



f 



In this way, one extremity 

 ftratum has been elevated, while the other 



has been deprelTed, and 

 the horizon has been giv 



the 



hole of 



T 



one caufe f 



rves two purpofes ; the va- 

 the interior of the earth account, both 



for the depreffion of 



fea 



d 



of th( 

 mena 



: land ; and the Neptuniils, if the pheno- 

 were all fuch as have been now Hated, 



might boafl: of a felicity of explanation, not very 



lifual in their fyllem. 



But 



