246 



Schmidtella, genus of Ulrich 172 



S. (?) acuta, described 173 



S. (?) pervetus, described .... 172 



S. mut. concinna, described 173 



Schizambon prisons, described and compared 187 



Section of Cambrian on Dugald brook 22 



S on Gregwa brook 31 



Section of Etcheminian at Steele brook 20 



Lower Etcheminian at Young point .... 19 



Shore current, probable cause of orientation 61 



Slates and sandstones of the Etcheminian 17 



Solenopleura Bretonensis, described . 176 



Slates of Coldbrook terrane disturbed 65 



Sphaerophthalmus alatus, found 229 



S. Fletcheri described. . . . 227 



S. comparative abundance 228 



Spruce brook, East bay, Etcheminian at 46 



St. John terrane, descriptions of the species of the 183 



faunas of the 180 



lists of the species of 182 



synoptical table of species 240 



Steele brook, Etcheminian section at 20 



Sydney and Louisburg road, Etcheminian on 38 



Table, synoptical, of Cambrian strata 69 



Terranes of the Cambrian in Cape Breton , 12 



Thickness of Cambrian in Cape Breton 52 



Tremadoc fossils on McLeod brook 50, 70 



T. fauna, is it Cambrian ? 180 



Triarthrus Belli, described and compared 230 



Upper Paradoxides fauna on McLean brook 70 



Urotheca, a species of 183 



West Bengal road, Etcheminian on ' 35 



Westonia, subgenus of Walcott, described 205 



Escasoni described 206 



beautifully ornamented 207 



compared with other species 208 



Young point, Holasaphus fauna at 70 



orientation of fossils variable 63 



Section of Lower Etcheminian at 19 



Zone " Co.," comparatively small size of fossils in ' . . 72 



