PREFACE. 



IX 



in whicli the shell-bearing molluscs dwell, and 

 the armour of proof possessed by the crustacese, 

 are all fashioned by the same skilled hand ; and 

 so marvellously perfect and admirable are their 

 adaptation to the purposes for which they are 

 intended, that man, with all his boasted intelli- 

 gence, can only wonder, admire, and endeavour 

 to imitate. 



