PAGE 



dis, see Crepicephalus. 



Dresbach, Winona County, Minnesota, Upper Cambrian locality 84.. 163, 



165, 167, 192, 193, 200, 219 



Dresbach formation, Upper Cambrian locality 83* 163, 209 



Dresbachia, new genus, described 166 



association 161 



compared with M enomonia and Millardia 167 



Millardia 164 



genotype, Dresbachia amata Walcott 167 



geographic distribution 167 



referred to Menomonidae 161 



observations 167 



stratigraphic range 167 



amata, new species, described 167 



figured pi. 26, figs. 5, Sa-c 234 



compared with Millardia optata (Hall) 167 



formation and localitj' 167 



Eastern Asia, Cambrian faunas of * 160 



Eau Claire, Eau Claire County, Wisconsin, Upper Cambrian localities 



78a, 98 163 



Upper Cambrian locaHties 98, 98X 209 



Eau Claire formation. Upper Cambrian locality 78a 163, 167, 192, 198, 209 



locaHty 79 167, 199, 217 



locaUty 79c 165 



locality 79d 214 



locality 796 214, 217 



locality 79X 167, 193, 209 



localities 80, 82, 82a, 83a, 98, 98X, 134 192 



locality 83a 163, 209 



locality 84 165, 167, 192, 209, 219 



locality 86c 199 



locality 98 209 



locality 98X 167, 209 



locality 100 167, 209 



locality looa 165, 192, 209 



locaHty 339^ I95 



Eleva, Trempealeau County, Wisconsin, Middle Cambrian locality 796. . 214 



elongata, see Tsinania. 



elongatus see Crepicephalus texanus. 



Eoorthis desmo pleura (Meek), associated with Tsinania cleora 227 



Essex County, New York, Upper Cambrian localities 77, 136a 194 



Ettrick, Trempealeau County, Wisconsin, Upper Cambrian locaHty 79x.. 209 

 Upper Cambrian locality looa 165, 192 



Eureka District, Nevada, Middle Cambrian locality 58 185 



Finkelnburg, W. A., acknowledgments 166, 195, 251, 252 



Fish Spring Range, Utah, Upper Cambrian locality 15J 185 



Upper Cambrian locality ist 185 



