428 INDEX 



PAGE 



Calymcne senaria, compared with Sidneyia inexpectans 27 



mentioned 190 



f sinensis Bergeron {^Blackwelderia sinensis (Bergeron)), for- 

 mer and present generic reference 71 



Cambria, see Laggania, Laotira, and Worthenella. 



Cambrian Annelids, discovery in 1910 1 1 1 



classification iii 



relations to living annelids iii 



Cambrian beds, Robson Peak district 329 



"Cambrian Brachiopoda," U. S. Geol. Survey Monograph, cited 263 



reference to 231 



Cambrian brachiopods, collected in China, described by Kayser 69 



Cambrian Branchiopoda, descendants of 166 



Cambrian Crustacea, theoretical lines of descent of 161 



Cambrian fauna, abrupt appearance of i, 2 



resume 14 



" Cambrian faunas of China," report on, cited 387 



third preliminary paper 69 



Cambrian formations, Adirondack province, cited 252 



in Upper Mississippi Valley, revised 353 



of Robson Peak district 327 



Cambrian fossils, Yunnan, photographs of 19 



Cambrian genus, Dikelocephalus cited as, in America 366 



Cambrian locality 220b, Beauharnois, Quebec ' 279 



locality of Olenopsis, Canal Grande, Sardinia 248 



Middle and Upper, ostracods in 157 



Robson district, stratigraphic section 341 



unnumbered locality, Keeseville, New York 292 



upper limit, fauna of New York State referred to 257 



See Upper, Middle, and Lower Cambrian. 



Cambrian Merostomata, classification 19 



discussion of American 19 



relations to pre-Cambrian Merostomes 21 



Cambrian representatives 45 



Cambrian strata, Canadian Rockies 18 



Sardinia, discussed 239 



and pre-Cambrian strata. North America 2 



Cambrian system, stratigraphic section, Robson Peak district :i2>7 



Cambrian time '. 19 



Cambrian trilobites, collected in China, described by Dames 69 



Cambro-Ordovician, occurrence of Saukia stosei and 5". zvardi in limestones. 362 



summit of Ottertail and base of Goodsir formations 230 



" Cambro-Ordovician boundary in British Columbia " 229 



Canada, Algonkian locality 14Z, Alberta 40 



generic name derived from 118 



Upper Cambrian locality 346e near Donald Station, British 



Columbia 368 



canadensis, see Anonialocaris, Ccratopyge, and Olcncllus. 



