5S C O N C H © L O G Y, 



;^(^^^)! 



SECTION III. 



AVING finiflied the- review of the 

 authors on this branch of Natural 

 Hiftory, I fliall proceed on two other ge- 

 neral points, viz. of the nfes of Shells, 

 and inftruftions for collecting, cleaning, 

 and preferving them, 



I obferved on fetting out, that this part 

 of the creation feems more adapted as a 

 link or harmony of Nature, than as oeco- 

 nomical, or of immediate ufe to mankind, 

 Moll part of the animals are nourifliing 

 food, though not folely or for conftancj, 

 as beafts, birds, fifh, and vegetables are ; 

 not any nation, to my knowledge, having 

 been mentioned to fubfift on them alone. 

 In medicine their fliells or habitations are 

 of fome ufe ; and, in agriculture, a manure 

 of recent fhells, fea-fand, or comminuted 

 fliells, and the foffil Ihells of the craig-pits 



