ROCKS. 



23 



Names. Localities. 



31 - 33 Trenton limestone (with Leptcena, etc.). Middleville. 



with L. sericea). Fortplain, Montgomery. 



with L alternata). Near Middleville, Herkimer. 



with Orthis pecti?iella). Middleville. 



with O. pectinella and fragments). Middleville. 



with O. testudinaria). North of Littlefalls. 



with O. testudinaria). Watertown, Jefferson. 



with Delthyris lynx). 



with Atrypa eztans and impressions of Orthis). 

 Near Boonville. 



with Atrypa extans). Watertown, Jefferson. 



with Pleurotomaria, etc.). Watertown. 



with Pleurotomaria and Subulitcs). Watertown. 



with Endoceras proteiforme). Middleville. 



with fragment of an Orthoceras). Watertown. 



with fragment of Orthoceras). Middleville. 



with fragment of Orthoceras). Fortplain. 



with fragments of Orthoceras). Middleville. 



with fragments of Endoceras proteiforme). Mid- 

 dleville. 



34 





do 



35 & 36 



do 



37&38 



do 



39 





do 



40 





do 



41 





do 



42 





do 



43 





do 



44 





do 



45 





do 



46 





do 



47 





do 



48 





do 



49 





do 



50 





do 



51 - 



-53 



do 



54 





do 



55 



do 



(with fragments of O. junceum). Watertown. 



56 Endoceras of the Trenton limestone. 



57 Trenton limestone (with fragment of Orthoceras?). 



FIFTH WALL CASE. 



58 Trenton limestone (with Isotelus). Creek at Spraker's basin, Fulton. 



59 Fragment of Orthoceras. 



60 Trenton limestone (with Leptana, etc.). 



61 Fragments of Orthoceras from the Trenton limestone. 



62 Trenton limestone (with fossils). 



63 do (with Isotelus). Glensfalls, Warren. 



64 do (with Isotelus). Middleville, Herkimer. 



65 - 67 do Glensfalls, Warren, 



