40 





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41 





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42 





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43 





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44- 



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20 NEW-YORK STATE COLLECTION. 



Names. Localities. 



37 Base of Pkytopsis), Fortplain, Montgomery. 



38 BtRDSEYE LIMESTONE. 



39 Black-river limestone (with Cohimnaria alveolata). Watertown. 

 (with C. alveolata). Amsterdam, 

 (concretionary). North of Amsterdam, Fulton, 

 (concretionary). Goshen, Orange, 

 (with Ormoceras tenuifilum). Watertown. 

 (with O. tenuifilum). Near Littlefalls, Herkimer. 



FOURTH WALL CASE. 



46 - 49 Chazy limestone (with Atrypa, etc.). Chazy, Clinton. 



(with Scolithus). Clinton. 



(with Maclurea). Chazy. 



(with coral and Maclurea). Chazy. 



(with Maclurea). Chazy. 



(remains of Atrypa, etc.). Chazy. 



(marble). Isle Lamotte. 



(with Orthoceratite'). Chazy. 



(with remains of fossils). Chazy. 



(with Orthoceras). Chazy. 



(with Maclurea). Chazy. 



(with remains of Atrypa, etc). Chazy. 



(with traces of Maclurea). Chazy. 

 65 Birdseye limestone (weathered surface). Mohawk valley. 



(with Maclurea). Amsterdam, Fulton. 



(remains of fossils). Near Watertown, Jefferson. 



(with Phytopsis). Chazy? Clinton. 



(with Leptcena sericea). Near Middleville. 

 Chazy, Clinton. 



(with Streptelasma) . Dunkirk, Lewis. 



(with Phytopsis, etc.). Watertown, Jefferson. 



(with coral). Lafargeville, Jefferson. 



50 



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51 



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52 



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53 



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54 



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55&56 



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57 



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58 



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59&60 



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61&62 



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63 



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64 



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65 Birdseye 



66 



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67 



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68 



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73 



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