Beport of the State Geologist, 225 



Orthoceras scintilla, Hall. 1879. 



Palaeontology of ISTew York, vol. v, pt. 2, p. 293, pi. 84, figs. 19, 20. 

 Hamilton group. Pratt's Falls, N. Y. 



Collected by H, IL Smith and G. Van Deloo, 1874. 



Palaeontology of New York, vol. v, pt. 2, pi. 84, tig. 21. 

 Hamilton group. Pratt's Falls, N. Y. 



Collected by H. H. Smith and C. Van Deloo, 1874. 



Palaeontology of New York, vol. v, pt. 2, pi. 113, fig. 6. 

 Hamilton group. Pratt's Falls, N. Y. 



Collected by H. H. Smith and C. Van Deloo, 1874. 



Palaeontology of New York, vol. v, pt.'2, pi. 113, figs. 7, 8, 9. 

 Hamilton group. Pratt's Falls, N. Y. 



Collected by H. H. Sm,ith and C. Van Deloo, 1874. 



Palaeontology of New York, vol, v, pt. 2, pi. 113, figs. 10, 11, 12. 

 Hamilton group. Pratt's Falls, N. Y. 



Collected by H. H. Smith and C. Van Deloo, 1874. 



Orthoceras pacator, Hall. 1879. 



Palaeontology of New York, vol. v, pt. 2, p. 307, pi. 89, fig. 1, 

 Portage group. Mt. Morris, N. Y. 



Palaeontology of New York, vol. v, pt. 2, pi. 89, fig. 3. 

 Portage group. Mt. Morris, N. Y. 



Palaeontology of New York, vol. v, pt. 2, pi. 89, fig. 5. 

 Portage group. Near Ithaca, N. Y. 



Collected by C. Van Deloo, 1874. 



Palaeontology of New York, vol. 5. pt. 2, pi. 89, fig. 6." 

 Portage group. Ithaca, N. Y. 



Collected by C Van Deloo, 1874. 



Orthoceras Thyestes, Hall. 1879. 



Palaeontology of New York, vol. v, pt. 2, p. 306, pi. 88, fig. 2. 

 Portage group. Near Watkins, N. Y. 



Pickett purchase. 



