No. 136.] 15 



G. L. RIDER, Norwich, Chenango county. 



Slab with Crinoidal column, Hamilton group. 



Bones of a Mastodon, Ellenville, Ulster county. These consist 

 of the principal parts of the skull ; the jaws, in which 

 are several teeth ; a pelvic and thigh bone ; vertebrae, 

 and a tusk. 



