265 



Grap. 



Graptolithus gracilis. Hall, Pal. N. Y., Vol. Ill, p. 510, 



511, 512, 513, wood cuts 1, 2, 3, 4, 5, 6, 7. Hudson rimr — ///J — 

 Perhaps to this species belongs also Rastrites barrandi. 



Graptolithus logani. Hall, Canada Rt., 1858, Pal., N. Y., 



Hall, lii G. I. 



