24 



THE ANGLEE-NATUEALIST. 



a portion of one side of the cases being removed to show 

 the young fish within. 



( Case ' of young of Dog-fish. 



Their empty shells, known by the names of " Mermaids' 

 purses/' " Skate-barrows/' &c., are frequently picked up on 

 the sea-shore, and will be familiar to most of us, though 

 very possibly we may not have been acquainted with their 

 origin. 



' Case ' of young of Skate. 

 Scales : formation and uses. 



The scales of fish, which are productions of the skin, 

 exhibit considerable uniformity of arrangement. The lines 



