Report oi the State Geologist. 423 



Palaeontology of New York, vol. vii, 1888, pi. 24, tig. 11. 

 Corniferous limestone (drift). Canandaigua, N. Y. 



J. M. Clarke }>ur chase. 



Palaeontology of New York, vol. vii, 1888, pi. 24, fig. 12. 

 Corniferous limestone (drift). Canandaigua, N. Y. 



J. M. Clarke purchase . 



Cyphaspis stepha?iophora, Hall. 1888. 



Paleontology of New York, vol. vii, 1888, p. 142, pi. 24, figs. 2, 3. 

 Corniferous limestone (drift). Canandaigua, N. Y. 



J. 31. Clarke purchase . 



Palaeontology of New York, vol. vii, 1888, pi. 24, fig. 4. 

 Corniferous limestone (drift). Canandaigua, N. Y. 



J. M. Clarke purchase . 



Palaeontology of New York, vol. vii, 1888, pi. 24, fig."5. 

 Corniferous limestone (drift). Canandaigua, N. Y. 



J. 31. Clarke purchase . 



Palaeontology of New York. vol. vii, 1888, pi. 24, figs. 6, 6a. 

 Corniferous limestone (drift). Canandaigua, N. Y. 



J. 3f. Clarke purchase . 



Cyphaspis diadema, Hall. 1888. 



Palaeontology of New York, vol. vii, 1888, p. 141, pi. 24, fig. 13. 

 Corniferous limestone (drift). Canandaigua, N. Y. 



J. M. Clarke purchase . 



Cyphaspis hybrida, Hall. 1888. 



Palaeontology of New York, vol. vii, 1888, p. 144, pi. 24, fig. 14. 

 Corniferous limestone (drift). Canandaigua, N. Y. 



J. M. Clarke purchase . 



Cyphaspis craspedota, Hall. 1888. 



Palaeontology of New York, vol. vii, 1888, p. 148, pi. 24, figs. 15 

 16, 17. 

 Hamilton group. Centerfield, N. Y. 



J. M. Clarke purchase. 



