OysteT 



GTints, 



bca^Mop 



natural Bads 



The above characters, as used on the following maps, indi- 

 cate the position and relative quantities of the various shellfish 

 in their respective localities. No attempt is made to give the 

 relative abundance of scallops and oysters, while the present 

 productive value of the different clam and quahaug areas is in- 

 dicated by different standards of marking. 



