INDEX 



Acanthodes pristis, 20. 

 Actinopteria sp., 12. 



muricata, 10, 12. 

 Aliens Hill, 14. 

 Ambocoelia praeumbona, 10. 



umbonata, 10, 12, 22. 

 Ashantee, n. 

 Aspidicthys, 10. 

 Athyris spiriferoides, 10. 

 Atrypa hystrix, 22. 



reticularis, 8, 12. 

 Attica quadrangle, 14. 

 Aulopora sp., 22. 

 Aviculopecten bellus, 12. 



cf. fasciculatus, 10. 

 Avon, ii, 14. 



Bactrites, 21. 



aciculum, 16, 18. 

 Beebe brook, 15. 

 Bellerophon leda, 12, 13. 

 Bertie waterlime, 6, 7, 24. 

 Bradner creek ravine, 21, 22. 

 Brockpo'rt quadrangle, 7. 

 Buchiola retrostriata, 12, 18, 21. 



Calabogue ravine, 20, 21, 22. 

 Canfarotoechia horsfordi, 12. 



sappho, 12. 

 Camillus shale, 6-7. 

 Canadice lake, 19, 20. 

 Canandaigua quadrangle, 7, 14, 15. 

 Canaseraga valley, 20, 21, 24. 

 Cardiff shale, 6, 12-13. 

 Cashaqua shale, 6, 18, 19, 20. 

 Cemetery hill, 20. 

 Centerfield, 14. 

 Chemung shale and sandstone, 6, 23, 



24. 

 Chonetes deflectus, n. 



lepidus, 13. 



lineatus, n. 



mucronatus, 10, 12, 13. 



scitulus, 12, 13. 



cf. yandellanus, n. 



Cobleskill waterlime, 7. 

 Coelospira Camilla, 10. 

 Conesus, 20, 21, 22. 

 Conesus lake, 17, 18, 10, 20, 24. 

 Conesus outlet, n. 

 Conodonts, 16, 18. 

 Crinoid stems, 13, 22, 23. 

 Cryphaeus boothi, 13. 

 Culberson gully, 21, 22. 

 Cumminsville, 20. 

 Cypricardinia indenta, 10. 

 Cyrtoceras sp., 12. 

 citum, 10. 



Dansville, 20, 21, 22, 23, 24. 

 Diaphorostpma lineatum, 15. 

 Dinichthys halmodeus, 10. 

 Dip of strata, 24. 



Eagle point, 17, 18. 

 Eridophyllum sp., 15. 



Favosites, 8. 



arbusculus, 15. 



argus, 15. 

 Fish remains, 18. 

 Five Corners, 7, 9, 24. 

 Flint creek, n. 



Garbuttsville, 7. 



Gardeau flags and shale, 6, 22, 24. 



Gates creek, 14, 15. 



Genesee black shale, 6, 16, 17. 



Genesee Lime Company, 9. 



Genesee river valley, 24. 



Genundewa limestone, 6, 16, 17. 



Gephyroceras sp., 18. 



Glacial action, exhibition of force, 



24. 



Glenville, 18, 19. ' 

 Gomphoceras, sp., 13. 

 Gorham, 15. 

 Grammysia elliptica, 22. 

 Grimes sandstone, 6, 20, 21, 22. 



27 



