INDEX 451 



PAGE 



Introduction, " Abrupt appearance of Cambrian fauna " i 



" Cambrian faunas of China " 69 



" Cambrian formations, Robson Peak district " 328 



" Cambro-Ordovician Boundary, British Columbia" 229 



" Dikelocephalus and other Genera '' 346 



" Middle Cambrian Annelids " no 



" Middle Cambrian Branchiopoda, Malacostraca. Trilobita, and 



Merostomata " 148 



" Middle Cambrian Holothurians and Medusa; " 42 



" Middle Cambrian Merostomata " 18 



" New Lower Cambrian subf auna " 309 



" New York Potsdam-Hoyt fauna '" 252 



" The Sardinian Cambrian genus Olcnopsis in America " 239 



Iowa, Upper Cambrian locality 86b at Lansing 371 



io~n.'ensis, see Dikelocephalus. 



Iphionella cimex De Quatrefages, compared with Jl'l-waxia eorrugata. . . 124 



iphis, see Obolus (IVestonia). 



irregularis, see Canadia. 



Isoxys, representing Phyllocarida 155 



lyatunga (black rock) Mountain (= Rearguard) 331 



new name ^^2 



Robson Peak district, illustrated, pi. 58, figs. i. 2 340-341 



text fig. 12 331 



japonica, see Nicomache. 



Jessup, J. M., photographs by, mentioned 30 



Jordan formation, description and fauna of 355 



in provisional classification 354 



listed with Upper Cambrian of Minnesota 353 



range of Dikelocephalinse in 359 



Jordan sandstone fauna, CalvincUa ozarkciisis in 359 



junia, see Saukia. 



Kaolinite, mentioned by E. S. Larsen, Jr 149-150 



Kata-biotite-orthoclase gneiss, mentioned 151 



Kayser, Emanuel, Cambrian brachiopods from China, described by 69 



kayseri, see Eoorthis and Plcctorthis. 



Keeseville, New York, unnumbered locality . . . .' 292 



Keith, Arthur, bibliographic references 15 



cited on southern Appalachian pre-Cambrian 9, 11 



Keweenawan system, discussed 5 



Kiabab Plateau, Grand Canyon, Northern Arizona 198 



kichoucnsis, see Eoorthis and Orthis (Plectorthis) . 



Kicking Horse Pass route, Bosworth section 341 



" Kidney crab," Burgcssia 160 



King, Clarence, bibliographic reference 15 



kingi, see Ptychoparia. 



" Kittatinny " limestone, Blairstown, New Jersey, fauna of 255 



Lower Ozarkian locality iic 362 



locality lie, correction (footnote) 389 



erroneously assigned to Upper Caml)rian, locality lie 270 



