396 



Inde:>\ 



Serpentine rocks of Staten 



Island 164, 165, 182 



Shore-wear of Staten Island .... 181 



Siderite 17 



Siderites (meteorites) 290 



Silicates, treated with organic 



acids 2,' 11, f2, 15—18 



Silver and organic acids 17 



Silver-bearing ores, treatment 



of 81—113 



Smaltite 17 



Smithsonite 16 



Sodus Bay, lake ridges at 264 



Soils, sanitary influence of. .60, 61 

 Sombrero, W. I. . 118, 119, 123, 192 

 South America, former north- 

 ward extension of 117 



Specific gravity of meteorites . . 298 



Sphalerite 16 



Spinel 4, 10, 18 



Spirifers, relations among, 148 — 160 



variations of 156 — 159 



Spodumene 12, 17 



Sporasiderous meteorites 291 



St. Bartholomew, W. I 



118, 119, 124, 189—191 

 St. Croix, W. I., see Santa Cruz. 



St. Eustatius, W. 1 118, 192 



St. John, W. 1. . . 185, 186, 187, 188 



St. Kitts, W. 1 192 



St. Lawrence valley in the ice- 



pei-iod 263—266 



St. Martin, W. I 



118, 119, 124, 189—191 

 St. Thomas, W.I. 118—126, 185—188 

 Staten Island, geology of . .161 — 182 



Archaean 163 — 168 



changes of level 181 



Cretaceous 170 — 173 



drift 173—175 



fire-clays 171, 181 



flora 173 



iron-ores. . 172, 175—177, 181 



minerals 165, 181 



modern deposits. . . . 178 — 181 



Quaternary 173 — 178 



rainfall 162 



terminal moraine... 173, 174 



trap 168, 169, 181 



Trias 168, 169 



Staurolite 6, 11, 18 



Steiim-engines, limit of expan- 

 sion in 353 — 855 



Stephanite 4, 15, 17 



Stibnite 16 



Stilbite 12, 16 



TAGE. 



Stroutianite. 16 



Subcarboniferous fossils of Ohio, 



219—226 

 Sulphides treated with organic 



acids 2, 9, 10, 15—18 



Sulphur 3, 10, 17 



Sulphur-springs, origin of 367 



Surface geology of Western JNew 



York :....'.' 249—266 



Syssiderous meteorites 291 



Tables showing relations of car- 

 bon minerals 269 270 



Talc 12, 18 



Tar-springs 279 



Temperature of meteorites, 298-300 



Tennantite 4, 15, 17 



Teutacuiitc limestone 149,' 160 



Tephroite 5, 11, 17 



Termimil moraine on Staten 



Island 173, 174 



Tertiary petioleunis 278 



Tertiarv rocks of the West 



Indies 119, 185, 189—192 



Tetrahedrite 17 



Thermotics, views of Carnot 



upon 19, 21 



Thomsonite 6, 11,' 16 



Tiemannite 3, 17 



Till, features of in Scotland. . . .' 262 



in Western N. Y 255—258 



Titanite 6. 11, 18 



Topaz 6, 11, 18 



Torl)eruite 8, 13, 16 



Toronto, ancient lakebeaqhes at 263 

 Tortnla, AV. 1.... 122, 185, 187, 188 



Tourmaline 12, 18 



Trachyte 292, 307, 308 



Transit of Venus, see Venus. 

 Trap-rocks of New Jersey. . . 35 — 50 

 of Staten Island, 168, 169, 181 

 Triassic rocks of New Jersey, 32 — 50 



of Staten Island 168, 169 



Trinidad, W. 1 190, 191 



pitch-lake of 279, 280 



Triphylite 7, 12, 16 



Triphte 7, 12, 16 



Tully limestone 145, 251 



Ulexite 8, 13, 16 



UUmannite 17 



Upper Helderberg group. . .251, 261 



Upper Llandovery beds 150 



Uranmite 17 



Utica shale.. 276, 280, 288, 357, 



• 360, 363, 867 



