626 



INDEX. 



PAGE 



Cinnamomum Mississippiense 508 



polyniorphuin 509 



Circulation, illustrations of law 249 



Cladodus spinosus 399 



Clay formation 7 



slate 220 



Claypole 254 



Cleavage, association with contorted laminae. 184 



association with foldings of strata 184 



crystalline 182 



flag-stone 182 



organic 182 



physical theory of 185 



planes 182 



slaty, Sharpe's theory 183 



Sorby's theory 185 



structure 181 



theory, geological application 187 



Tyndall's theory 186 



Clinometer 177 



Clisiophyllum Gabbi 391 



Club-moss compared with lepidodendron 367 



Clupea alta 518 



Clypeus Plotii 429 



Coal areas of different countries compared. . 351 



areas of the United States 350 



calamites 370 



conifers 358 



Cretaceous 473, 498 



estuary or raft theory 373 



extra-carboniferous 351 



fat or fusing 354 



ferns 362 



field, Appalachian 375, 377 



field, central 376 



field, Richmond and North Carolina 456 



field, Western 376 



formation, estimate of time 377 



formation of 350 



Jura-Trias 456 



Jura-Trias, fossils 457 



lepidodendrids 365 



measures, iron-ore 383 



measures, Jurassic 425 



measures, plication and denudation 348 



measures, thickness of strata 346 



metamorphic 356 



modes of occurrence 346 



origin 352 



peat-bog theory 373 



period, climate 379 



period, physical geography 378 



plants, fruits 360 



plants, general conclusions 372 



plants, living congeners 359 



plants, principal orders 358 



plants, where found 358 



relative production 351 



seams, faults 349 



seams, number and thickness. 349 



sigillarids 368 



steam 354 



theory of accumulation 373 



varieties 353 



PAGE 



Coal, varieties, origin 354 



vegetable structure in 353 



water present during accumulation 373 



Coast Range of California 259 



Range, time of formation 544 



Coccoliths 471 



Coccospheres 471 



Coccosteus 339 



decipiens 336 



Cochliodus contortus 399 



Coelurus f ragilis 460 



Colorado canon 16 



Colossochelys Atlas 520 



Columbia River falls 14 



Columnaria alveolata 306 



Columnar structure of rocks 212 



Columns, granitic 227 



Comanche group 473 



Comatula rosacea 311 



Compsognathus 442 



Concretions, limestone 190 



Conformable strata 179 



Conglomerate, true 171 



volcanic 214 



Conifer, trunk of Carboniferous 358 



Coniferous wood, fossil and recent, 328 



Conifers of Jura-Trias 459 



Triassic 415 



Coniopteris Murrayana 427 



Connecticut River sandstone 452 



Conocardium trigonale 333 



Continental form, laws 169 



Conularia Trentonensis 317 



Cope .... 404, 413, 449, 460, 461, 486, 487, 488, 494 



Copper-veins 239 



Coral, compound, or corallum 145 



forests 145 



growth, conditions of 147 



islands 146 



islands, amount of vertical subsidence. . 153 



islands, area of land lost . 153 



islands, crater theory 150 



islands, Murray's theory 152 



islands, rate of subsidence 154 



islands, subsidence, geological applica- 

 tion 155 



islands, subsidence, theory of 150 



islands, subsidence, time involved 155 



polyp 145 



reefs 146, 147 



reefs, barrier and circular, theories 150 



reefs, Darwin's theory 150 



reefs, Murray's theory 152 



reefs, Florida 156 



reefs, Pacific 147 



Corals. Carboniferous 391 



cup 304 



cyathophylloid 304 



Devonian 332 



Favositid 304 



Halysitid 304 



Jurassic 428 



Silurian 304 



Corbicula fracta 498 



