EGG COLLAR 
     
    
   
   
    
       
     
    
   
   
    
     No. 111 
     
     Juiy - August 
     
     1990 
     
    
   
   
    
        
     
    
   
   
    
     The newsletter of 
     
     The Natural History Society 
     
    
   
   
    
     . of 
     
    
   
   
    
     Prince 
     
     Edward 
     
     lshand 
     
    
   
   
    
     N ATURALIST 
     
    
   
   
    
     ISLAND 
     
    
   
   
    
     COMMON NORTHERN MOON SHELL