64 C O N C H O L O G Y. 



themfelves to the rocks, or other immove- 

 able places they meet with. 



In rep*ard to inflru£lions for collefting, 

 cleaning, and preferving Shells, fit for ob- 

 fervations or cabinets, I fhall offer the fol- 

 lowing hints : 



For colle£ting. It is always neceflary, 

 if poffible, to get them alive, or with 

 the animals in them. It not only inflrufts 

 us in the natural hiftory of the very ani- 

 mals, a part extremely ufeful to a thorough 

 knowledge of Shells, (though as 1 have al- 

 ready advanced, it is not neceffiiry to form 

 )the method or fyftem of them) but it alfo 

 preferves the Shell in its perfect nature 

 and beauty ; for only live Shells bear the 

 full glow of their colours. 



When any Shells with their fidi arc 

 colle6led, I would not have them imme- 

 diately killed, but kept for a few days in 

 their native fea water (not longer, for 



the 



