CONTENTS V 



PAGE 



Work in ground stone 190 



Work in chipped stone 190 



Work in bone 191 



Work in antler 192 



Work in shell 193 



Work in wood 193 



Vegetal remains 193 



Animal and molluscan remains 194 



Probable antiquity of the Sterns Creek culture 195 



Suggestions for further work 196 



Burial mounds and native quarries in the Weeping Water Valley, Cass 



County 198 



The problem of Nebraska mounds 205 



Surface sites on the Dismal River, Hooker County 212 



Gravel deposit containing artifacts and fossilized bones (Bird Creek 



canyon site), Sarpy County 217 



Recent discoveries of human artifacts associated with extinct mammals 



in Nebraska and closely adjacent regions 220 



Signal Butte, a stratified site in Scotts Bluff County 224 



Geologic background 225 



Method of excavation 227 



Cultural evidence by levels 228 



Ceramics 229 



Ground stone 230 



Chipped stone 230 



Bone and antler work 234 



Shell work 235 



Animal remains 235 



Considerations of relative age 236 



Other sites and regions in Nebraska 239 



Grouping of sites and summary of cultures represented 245 



The Upper Republican culture 245 



Table 4, grouping of Nebraska archeological sites according to 



cultures 246 



Table 5, types of rims from two Upper Republican culture sites. .. 248 



The Nebraska culture 250 



Table 6, types of rims from Nebraska culture sites excavated by 



the Survey 253 



The Sterns Creek culture 267 



Signal Butte cultures (II and I) 269 



Other sites 270 



Culture sequence and development in Nebraska 271 



Table 7, sequence of cultures in Nebraska (and northern Colorado) . 2'j2 



Cultural affiliations with adjacent areas 282 



Conclusion 294 



Literature cited 300 



Explanation of plates 310 



Index 317 



