of the Earth. 



ons, every Reader will be judge of the 

 truth and probability of it, and whe* 

 ther that which I do fo propofe natu- 

 rally follows from them or not. 



I fliall diftribute them into two ge- 

 neral Claffes or Sections, whereof the 

 former will comprehend my Obfervati- 

 ons upon all the Terreftrial Matter 

 that is naturally dijpofed into Layers^ or 

 Strata ; fuch as our common Sand- 

 ftone, Marble, Cole, Chalk, all forts 

 of Earth, Marie, Clay, Sand, Gravely 

 with fbrae others. 



Of this various Matter, thus formed 

 into Strata^ the far greateft part of the 

 Terreftrial Globe confifts, from its 

 Surface downwards to the greateft: 

 depth we ever dig or mine. And it is 

 upon my Obfervations on this that 1 

 have grounded all my general Conclu- 

 fions concerning the Earth ; all that 

 relate to its Form; all that relate to 

 the Vniverfal and other Deluges ; in a 

 word, all that relate to the feveral Vi- 

 ciffitudes and Alterations that it hath 

 yet undergone. Nay, upon the lame 

 Obfervations I have alfo founded feve- 

 ral Conclufions touching Metalls, Spar, 

 and other Minerals, which are found 

 lodged either in thefe Strata^ amongfl: 



