i 5 4 Natural Bifiory PartVl. 



the fame fort of Matter that do the; 

 Shells at this day found upon our 

 *r;V./>/r^. Shores Now the Sajt wherewith 

 22.^-23. the Sea-water is ftturated, is part of 

 ^^-f'"''- the Food of the Shell-fifh refiding 

 therein, arid a main Ingredient in the 

 Make of their Bodies ; they hving up* 

 on this, and upon the Mud and other 

 Earthy Matter there. 



And that the Sea Ehbed and Flotved 

 before the Deluge, may be inferr'd, 

 not fo moch from the Neceffity of that 

 Motion, and the many and great Ules 

 t conf. of it in the Natural World f , as from 

 ffg- 48. certain EffeQis that it had upon th© 

 ' Shells, and other like Bodies yet prec 

 ' ferved. 'Tis known that the Sea, by 

 this Accefs and Hecefs, Ihuffling the 

 empty Shells , or whatever el^ lies 

 expofed upon the Shores, and bearing 

 them along with it backward and for- 

 ward upon the Sand there, frets and 

 wears them away by little and little, 

 in tra£t of time reducing thole that 

 are concave and gibbole to a fiat, and 

 at length grinding them away almoft 

 to nothing. And there are, not un- 

 commonlv, found Shells fo worn en* 

 doled, amongft others, in Stone. 

 As the Sea-fhells aiford us a fure Ar- 

 gument 



