448 



SHIMER. 



7. City Point, South Boston. To form the INIarine Park here 

 mud was dredged from midway between Castle Island and the old 

 City Point shore, being dumped at the edge of the latter. In this 

 mud occurred the shells noted in the table below. The dead appear- 

 ance of most shells leaves no doubt as to their fossil condition, 

 though the excavation went to a depth of only a few feet. 



List of Species. 



The following list includes all post-glacial fossils noted, or listed 

 by previous observers, from Brookline through Back Bay, Boston, to 

 City Point. 



* Identified by J. A. Cushman. 



