ROCKS. 47 



.Names. Associated fossil*, and localities. 



12 Bed gypsum (with green shale). Lake Sodom. 



13 Compact gypsum (with green shale). Monroe county. 



14 Grey shale (with cavities of crystals). Near Lake Sodom. 



15 do (with remains of Cytherina). Near Peru, Livingston. 



16 do (with cavities of crystals). Near Lake Sodom. 



IT Calcareous infiltrations between layers of gypsum. Allen's creek. 



18 Gypseous marl. Newark, Wayne. 



19, 20 Gypsum. Allen's creek, Monroe. 



21 Gypseous marl (with seams of fibrous gypsum). Monroe county. 



22 Selenite. Nine-mile creek. 



23, 24 do (with fragments of marl enclosed). Newark, Wayne. 



25 do (with fragments of marl enclosed). Camillus, Onondaga. 



26 GvrsEous marl (with marks of pscudomorphic crystals of common salt). 



South of Syracuse, Onondaga. 



27 do (with ditto). Hill southeast of Chittenango, Madison. 

 28, 29 do (with ditto). Bull's quarry, Lenox, Madison. 



30 do (with ditto). Kelby's quarry, Lenox. 



31 PsEUDOMOKPHIC CRYSTALS of COMMON SALT. South of Syracuse. 



32 do do Bull's quarry. 



33 do do Nine-mile creek. 



34 Gray shale. Bull's quarry, Lenox. 



35 do (with obscure fossils). Near Bellisle, Onondaga. 

 36, 37 do (with impressions of fossil shells). Bull's quarry. 



38 do (with obscure fossil shells). Bull's quarry. 



39 do (with plant-like impressions). Bull's quarry. 



'40 do (with some plant-like impressions). Bull's quarry. 



41, 42 Serpentine. Near Syracuse. 



43 - 46 Calcareous serpentine. Near Syracuse. 



47 Serpentine (with crystals of calcareous spar). Near Syracuse. 



48 Serpentine. Syracuse. 



49 Gvpseous marl. Nine-mile creek. 



50 Black gypseous marl (with selenite). South of Bellisle. 



51 Nodule of gypsum and marl. South of Chittenango. 



