U. S.Oeolocfi.vf*.! $iirve t y. 



J>l&t& XJXJI. 



Mt.Hny&en. 



Wi H .".- .■■;£',; 



^i^^^^^asi^i^i^^^^^^^^^^^^llSi 



. Arcncean. b. Quartzite. JSajrt front of the Titoit Ran rye south of Mt.Hai/den, from near Iiovrer Gros Ventre Butte. a. Niagara, e. Carboniferous. 

 c. Quebec. f. Jiforaineti ae_posits. 



