The Natural Uiflory 



I infift upon; there being fo very few 

 of thefe in comparifbn of thofe which 

 have undergone no fuch Alteration. 

 There being, i fay, befides thefcy fuch 

 vait multitudes of Shells contained in 

 Stone, &c. which are intire, fair, and 

 abfolutely free from any fuch mineral 

 Contagion : which are to be matched 

 by others at this day found upon our 

 Shores, and which do not differ in 

 any refpeQ: from them: being of the 

 fame fize that thole are of, and the 

 fame ftiape preciftly : of the fame fub- 

 fiance and texture ; as confifting of the 

 fame pecuhar Matter, and this con^^ 

 ftituted and difpofed in the fame man- 

 ner, as is that of their refpeftive fellow- 

 kinds at Sea : the tendency of the Fi- 

 bres and Ssri^ the fame : the compofi- 

 tion of the Lamella ^ conftituted by 

 thefe Fibres, ahke in both : the fame 

 fefiigia of Tendons (by means where- 

 of the Animal is faftned and joyned to 

 the Shell ) in each : the fame Papilla: 

 the fame Sutures^ and every thing elft, 

 whether within or without the Shell, 

 in its Cavity or upon its Convexity, 

 in the Subftance, or upon the Surface 

 of it. Befides ; thefe Foilil Shells are at- 

 tended i^^ith the ordinary Accidents of 



