INDEX TO MUSEUM BULLETIN 19 



253 



St Lawrence county, sandstone, 145 2 ; 

 hematite, 219 2 . 



Salina group, 154 8 -56 6 . 



Salt, 223 9 . 



Salt springs, 155 2 . 



Sand, 120 5 , 125*. 



Sandroek, 143 3 . 



Sandstone, 125*, 1275, 1716, 1851-959; 

 composition, 120 6 ; as road metal, 

 205* ; of Cambrian system, 1428, 143? ; 

 Hudson river group, 149*; Mauch 

 Chunk group, 166 9 ; of Pocono age, 

 166 7 . See also Clinton group ; Medina 

 sandstone; Oriskany sandstone; 

 Potsdam sandstone ; Eed sandstone. 



Sapphires, 1228. 



Saratoga county, limestone, 1428. 



Schist, 1261. 



Schoharie county, lower Helderberg 

 group, 157 8 . 



Schoharie grit, 1598-60 2 , 191*. 



Scutella limestone, 157 6 . 



Sea weeds, 1463, 1506, 1533. 



Sedgwick, Adam, geologic studies, 142*. 



Sedimentary rocks, 123 2 , 125 s , 1265-27 9 . 



Seneca limestones, 202 2 . 



Seneca oil, 227 9 . 



Septaria, 164 6 . 



Sericite, 122*. 



Series, see Geologic series. 



Serpentine, 141 2 , 219?, 2218; compo- 

 sition, 122 5 ; localities producing, 

 2348. 



Shale, 125 5 , 127 5 , 2141; constituents, 

 1208 • of Cambrian system, 14gi, 143? ; 

 of Hudson river group, 149* ; Mauch 

 Chunk group, 166 9 ; Portage group, 

 164 2 ; as road metal, 2081 ; of Upper 

 Silurian system, 1531-561. See also 

 Hamilton shale ; Marcellus shale. 



Shawangunk grit, 151 5 . 



Shawangunk mountain, Oneida con- 

 glomerate, 1891. 



Silurian system, origin of term, 146*. 

 See also Lower Silurian system; 

 Upper Silurian system. 



Silver, ore, 122 7 ; mining in New York, 



231 5 . 

 Slates, 126 2 , 1431, 1437, 1494, 1638, 196* . 



See also Roofing slate. 

 Smock, J. C, bulletin on iron ores, 214*. 

 Soda ash, 2243. 



Spathic iron ore, 122?, 221 9 -22*. 

 Spirophyton cauda galli, 159*. 

 Sprakers, pre-Cambrian rocks, 141 s . 

 Stafford limestone, 162 7 . 

 Stages, 1366. 

 Stalactites, 120?. 

 State museum, origin, 240 8 , 243 2 ; 



quarters, 242 2 , 244 8 -45 2 ; organiza- 

 tion, 244 5 ; officers, 246. 

 Staten Island, clays, 213 1 ; limonites, 



2218. 

 Staurolite, 1226. 

 Stissing mountain, Archaean rocks, 



140 9 ; quartzite, 143*; marble and 



limestone, 144 3 . 

 Stockbridge, limestone, 144*. 

 Stone age, 179 6 . 

 Storm King, 1245. 

 Strata, thickness, 126* ; classification, 



135-36, 2383. 

 Sulphur, localities producing, 231 8 . 

 Survey of New York, 2408-43 2 . 

 Syenite, 125 2 . 

 Synopses, see Tables. 

 Syracuse, salt springs, 155 2 , 223 9 . 

 Systems, defined, 136 5 . 



Tables, classification of animal life, 

 13U-32 2 ; classification of geologic 

 time and strata, 135*-36 6 ; classifica- 

 tion of plant life, 133; geologic 

 formations of New York, 137 5 -38 5 ; 

 iron ores, 2151; Rosen busch classifi- 

 cation, 1251 ; sedimentary rocks, 

 1255. 



Taconic rocks, 150 1 . 



Talc, 2275. 



Talcose schist, 1261. 



Taylor, J. W., curator of museum, 

 2435. 



