INDEX 



953 



Conifers, 719 



Jurassic, 719 



Triassic, 691 

 Conocardium prattenanum, 614 



trigonale, 581 

 Consequent valleys, 116 

 Constellaria polystomella, 529 

 Contact metamorphism, 367 

 Contact ore-deposits, 73 

 Continental creep, 480, 934 



glaciers, 231 



plateaus, 317 



platforms, 8 



Continent-forming movements, 356 

 Continents, origin of, 433 

 Contraction due to cooling, 363 

 Conularia trentonensis, 526 

 Conus diluvianus, 826 

 Conway schist, 627 

 Cook, G. H., 730 

 Cooley, E. G., 185 

 Coon Butte, 369 



Copper of Keweenawan system, 466 

 Coquina, 83 



Coral reefs, Niagaran, 541, 552 

 Corals, Cambrian, 499 



Chemung, 588 



Cretaceous, 771 



Eocene, 794 



Hamilton, 584 



Helderbergian, 577 



Jurassic, 713, 714 



Kinderhook, 608 



Onondagan, 580 



Ordovician, 531, 532 



Osage, 610 



Pennsylvanian, 659 



Silurian, 551, 552 



Triassic, 701 



Waverly, 611 

 Corbula aldrichi, 796 



blakei, 700 



idonea, 825 



(?) persulcata, 741 

 Cordaitales, 650 

 Cordaites, 594, 644, 670 



Triassic, 691 



Cordilleran ice-sheet, 848 

 Corniferous limestone, 559 

 Coroniceras bisulcatum, 712 

 Corrasion, 146 

 Corrosion, 148 

 Corstorphine, G. S., 737 

 Corundum, 76 

 Coseismal lines, 344 



Cosmic matter in deep sea deposits, 



328 



Cosmopolitan development of life, 

 522 



faunas, 535 

 Cotylosaurus, 672 

 Cowles, H. C., 98 

 Crag and tail, 263 

 Cragin, F. W., 705 

 Crania loelia, 528 

 Crassatellites alseformis, 797 



marylandicus, 825 

 Crater, 371 

 Crazy Mountains, 756 

 Creep, 209 



of rocks, 480 

 Creodonts, 791 



Eocene, 787 



Crepidula fornicata, 827 

 Crepipora hemispherica, 529 

 Cretaceous, chalk of, 748 



climate of, 759 



close of, 752 



concretions, 748, 749 



fauna, 762 



flora, 759 



of Africa, 758 

 Asia, 757 

 Australia, 758 

 South America, 758 

 Texas, oil in, 746 



period, 742, 771 



period, climate of, 759 



reptiles, 765 



Crevasses in glaciers, 241, 284 

 Crinoids, Chemung, 588 



Cretaceous, 771 



Hamilton, 584 



Helderbergian, 577 



in Great Basin, Mississippian, 611 



Jurassic, 713, 714 



Kinderhook, 607 



Onondagan, 580 



Ordovician, 532 



Osage, 607 



Silurian, 548 



Waverly, 611 

 Cristellaria gibba, 795 



radiata, 795 

 Critical level, 292, 640 



pressure, 197 



temperature, 198 

 Crocodiles, Cretaceous, 764 



Jurassic, 719, 722 

 Croll, J., 287, 895 



