PLATE LXI. 



ISaotilds orieks. 



PagoiM. 

 See Plates 106, 106. 

 Fig. 1. Lateral view of a compressed, somewhat imperfect cast, preserving evidence of the revolvinjr Mri* 

 on some parts of the surface. From the Marcellus shale, near JHehiiumdvUh, Sehofiarit: 

 county, N. Y. 



