INDEX 561 



PAGE 



Copper Ridge formation 468, 469 



fauna 468 



Corralia Walcott, described 288 



Corralia undulata Walcott, described 288 



figured, pi. 72, figs. 2, 2a 346 



Coryncxochiis (Bonnia) Heldensis (Walcott), from British Columbia.... 66 



parvuhis (Billings), from Atlantic Province 65 



senectus (Billings), from Atlantic Province 66 



Coxopodite, figured, text fig. 22 422 



Coxopodites and trails of trilobites 429 



Crepicephalus, in Mount Whyte fauna 62 



augusta, from Pioche formation 98 



cecinna, from Mount Whyte formation 98 



Walcott, described 99 



figured, pi. 11, figs. 1, la-b no 



celer Walcott, described 101 



figured, pi. 1 1, fig. 2 no 



chares Walcott, described 35 



figured, pi. 6, figs. 5, $a-c 56 



iowensis group 98 



Owen, genus described 98 



Cruziana semplicata Salter, trilobite trail figured 214 



Cryptolithus tessalatus Green 386, 426 



Ctenodonta ? lucan Walcott 472 



cf . lucan Walcott 474 



Cyamus 396, 418 



Cyatnus, compared with trilobite 173 



diffusus Dall, discussed 173 



figured, pi. 28, fig. 10 198 



scammoni Dall, discussed 173 



figured, pi. 28, fig. 9 198 



Cyanophyceae 221, 222, 225 



Cyathophycus quebecense Dawson 268 



reticulatus, compared 271 



Cyrtolites meles Walcott 473 



Cyrtometopus ? sp. undt 474 



Cystid ( fragment) 472 



(plates) 473 



Cystoclonium purpurascens Kiitzing, compared 223 



Dall, Dr. Wm. H. 198 



Dalyia Walcott, new genus, described 237 



nitens Walcott, new species, compared 239 



described 239 



figured, pi. 55, fig. 3 256 



racemata Walcott, new species, described 238 



figured, pi. 55, figs. 4, 4a, b; pi. 56, figs. 1, la-c 256, 257 



Davis, Dr. Charles A 219 



Dawson, Sir J. W 265, 268, 269, 274, 296, 301, 312 



Dearborn River section, reference 9 



