874 



INDEX. 



Paige. 



Collingsworth gypsum 487 



Collins, W. H., acknowledgments to 36, 60 



Colombia (B-C 18), authorities on 581,582, 708, 796 



geology of 10, 64, 579, 681-582, 706, 708, 794, 796 



See also South America. 



Colorado (J-K 12-13), authorities on 21,57, 102, 169, 179, 284, 



285,367-372,474,480-483,490, 494, 495, 500, 510-513, 516,656, 

 557, 666, 606,607, 660, 670-674, 678, 755-769,760-764,770,813 



geology ot 10,11,13,14,64,72, 



102-103, 166, 169, 179,284-285, 355, 367-372, 474,479-483,490- 

 492, 494-495, 510-612, 649, 656-661, 566-567, 579,606-607,637, 

 648, 660-667, 670-674, 678-679, 706, 755-764, 769-770, 813-814 



publications on 33,35,36,38-44,49-62,54,56 



See also Great Plains; Eocky Mountains. 



Colorado group 662, 670-671, 673, 676, 678, 682, 685-689, 767 



Color printing, method ol 23 



Colors, allotment of , to particular rocks 27-29 



combinations of 22, 30 



contrast in, obtaining of 22 



value of 29 



overprinting of 23, 30 



Color schemes, principles of 21-23, 26, 27-30 



usages in 23-27 



Colors used on map, significance of 9-16 



succession of 27 



Columbia lava 829 



Columbus limestone 315, 317 



Colville River basin. See Endicott Range, etc. 



Colville series 792-793,838 



Comanche Peak hmestone 698-599 



Comanche series 11,679,591,693,596-598,601,604,607,608 



Compilation ot data, assistance in 5 



method of 5 



classification of 124, 145 



Conasauga formation 85-86, 89-91, 93, 94 



Concrete shale 458 



Conemaugh formation 420, 431-432, 436-437, 443, 458 



Congaree formation 736, 737 



Connecticut (K 18-19), authorities on 57, 192, 532 



geology of 64, 156, 192, 194, 600, 532 



publications on 32,37,39,40,43,50,62 



See also Atlantic coast; New England. 



ConnellsvUle sandstone 436 



Connoquenessing sandstone 434 



Conococheague limestone 109-110 



Conrad, T. A., publication by 844 



Continental Eocene, content of 10 



distribution of 10 



representation of, on map 10 



Continental Oligocene, content of 10 



distribution of 10 



representation of, on map 10 



See also Earlier Tertiary. 



Contributions, sources of 30-56 



Contributors, acknowledgments to 30-61 



Controller Bay region, authorities on 61, 788 



geology of 708, 788-789 



publications on 47 



See also Alaska, southern. 

 Cook, G. H., aoknowledgments to 36, 58 



publication by 844 



Cook Inlet, geology near 225, 263, 500, 641-642, 708, 787-788 



See also Alaska, southern; Matanuska Valley. 



Cook Moimtain formation 724, 727 



Coombs limestone ; 136 



Cooper, J. G., cited 752 



publication by 845 



Cooper, W. F., publication by 845 



Coosa limestone 145, 164-166 



Coos group 192, 250, 826 



Cope, E. D., cited 477, 517, 559,.755 



pubUcatious by 834 



Copper River basin (lower) authorities on 61, 337, 338 



geology of 337-338 



publications on 50, 52 



Copper River basin (upper), authorities on 61 



publications on 47, 50 



Corbin conglomerate 462 



Cordillera, geology of 12, 13, 15, 16, 17, 72, 269, 365, 401, 425 



Page. 



Comiferous formation 241-292, 301 



Correlation, discussion of 5 



Corry sandstone 414, 421 



Corryville formation 172 



Corwin formation 577, 636 



Costa Rica (C 16-17), authorities on 585 



geology of 579,585 



See also Central America. 



Cottonwood formation 145, 458, 465 



Cox formation 597-598 



Cragln, F. W., cited 487-489, 554, 614-615 



publications by, list of 845 



Crandall, Eoderic, acknowledgments to 36,56 



Cranston formation 469 



Crescent formation 778 



Cretaceous system. See EarUest Tertiary or latest Cretaceous; 

 Late Upper Cretaceous; Upper Cretaceous; Montana 

 group (coal-bearing portion); Lower Cretaceous. 

 Crider, A. F., acknowledgments to 36,56,68,723 



cited 732 



publication by 845 



Crider, A. P., and Johnson, L. C, cited 737, 738 



publication by 845 



Crider, A. F., atd Stephenson, L. W., cited 724 



Crosby, W. O., acknowledgments to 36,58 



cited. 114-116,169,683 



publications by. 470, 845 



Cross, Whitman, acknowledgments to 36,57 



cited 102-103,367-368,370-371,372, 



480-484, 490-192,511-518, 556-561, 660, 755-756, 761-762, 769 



publications by 764, 845 



Cross, W., and Howe, E., publication by 845 



Cross, W., and others, publications by 845, 849 



Cross Plains sandstone / 458 



Crystal Mountain sandstone 160-161 



Cuba (F 17-18), authorities on 21,348,552,722,803 



geology of 13, 342, 348-349, 562, 706, 722-723, 794, 803-804 



See also West Indies. 



Cuchara formation 758-759 



Culebra formation 713-714 



Cumings, E. R., cited 171-172 



publications by 187, 845 



Cumings, E. R., and Prosser, C. S., publication by 867 



Cummins, W. P., acknowledgments to 36, 59, 130 



cited 429-430,476-477,479,507 



publications by, list of 845 



Curmingham-Craig, E. H., publications by 584,845 



Curacao, West Indies, geology of 637,639 



Curlew limestone 468 



Cushlng, H. P., cited 120-123,126-127,184-187,204 



publications by 187, 845 



Cushlng, H. P., and Ulrich, E. O., cited 186-187 



publications by 124,862 



Cusseta sand 655, 657 



Cussewago sandstone 414 



Cutler formation 371,480-486,558 



Cuyahoga shale 408,414,415-416,422,430 



C j-press Hills, Saskatchewan, geology of. 834 



Cypress Hills formation 838 



Cypress sandstone 411, 413, 458 



D. 



Dakota formation 11, 534, 658, 566-667, 606, 637, 660, 661-663, 665, 671, 



672-674, 676, 678-682, 691, 693, 694-695, "697, 698 

 Dale, T. N., acknowledgments to 36, 58, 59 



cited : 114,188-189,192-193 



publications by, list of, 845 



Dall, W. H. , acknowledgments to 20, 36, 61 



cited 712-713,721,722,726,730, 



740, 771-772, 782, 783, 784, 786, 787, 798, 809, 823, 825-826, 832, 835 



publications by 683,826,846 



Dall, W. H., and Harris, G. D., publication by 846 



Dall, W. H., and others, publication by 869 



Daly, R. A., acknowledgments to -". 36,60 



Dana, J. D., classification by _ 184 



publications by 192, 846 



Danville group] 458 



