ROCKS. 39 



Names. Associated fossils and localities. 



17 SHALy SANDSTONE (with L. sericed). South of Verona, Oneida. 



18, 19 Limestone (with Fentamerus ohlongus). Rochester, Monroe. 



20 Siliceous limestone (with P. ohlongus). Woloott, Wayne. 



2J. Limestone (with Atrypa kemispherica). Below Martville, Cayuga. 



22 Limestone (with fragments of P. ohlongus). Sodus, Wayne. 



^3 Oolitic iron gee. Eochester. 



24 Oolitic iron pre (2 specimens). Stebbins's creek, Oneida. 



25 Limestone (with Leptcsna rugosa). Donnelly's quarry, Madison. 



26 Oolitic iron ore. Wolcott, Wayne. 



2T do (with fragments of shells). Donnelly's quarry. 



28 do (with Fentamerus ohlongus). Donnelly's quarry. 



29 & 30 do (with Spirifer radiatus). Donnelly's quarry. 

 31 Ferruginpus limestone (with P. ohlongus). Donnelly's quarry. 

 32, 33 Shaly sandstone (with Rusophycus pudicus). Gaylord's quarry. 



34 Atrypa congesta. Eeynale's basin, Niagara. 



35 Atrypa plicatella. Eeynale's basin. 



36 Shale (with GraptoUthus clmtonensis). Sodus. 



37 Limestone (with Atrypa kemispherica). Eochester. 



38 Limestone (with A. reticularis and P. ohlongus). Donnelly's quarry. 



39 Gray sandstone (with fragments of Homalonotus delphinocephalus). 



Steel's creek, Herkimer. 



40 Gray sandstone (upper mass of group). Steel's creek. 



41 Shale (with Atrypa congesta). Eeynale's basin, Niagara. 



42 Atrypa plicatella. Eeynale's basin. 



43 ChcBtetes lycoperdon. Eeynale's basin. 



44 Upper gray s audstoi^ie {mthModiolopsis oD«/a).Eemington's quarry. 



45 Limestone (with Atrypa congesta). Medina. 



46 Caninia hilateralis (2 specimens). Eeynale's basin. 



47 Atrypa congesta. 



48 Fibrous sulphate of strontian. Stark, Herkimer. 



49 Fibrous sulphate of strontian (with carbonate of lime, etc.). Stark. 



50 Crystallized sulphate of strontian. Stark. 



51 Gypsum. Stark. 



