212 INDEX. 



Page. 



Camptonectes platessiformis 93 



Canon of Desolation, Later views on fossils from IX 



Carboniferous Period, fossils of 88 



Catalogue of fossils 88 



Cliffs of Displacement 14 



Erosion : 15 



Colorado River 193 



Conformity of the Cretaceous 15(5 



Cope, Prof. E. D., on separation of Tertiary and Cretaceous 72 



Washiki Group G5, 156 



Corbicula Powelli 127 



Corbnla snbtmdifera 129 



Corrasion 189 



Correlation of Cretaceous and Tertiary Groups 71 



Cretaceous Period, fossils of 94, 101 



Cyrena (Veloritina) erecta 117 



Declivity as a condition of degradation 184,186,187,189,192,195,197 



Descriptions of new species of fossils 107 



Degradation 182 



, Methods of 188 



of the Uiuta Mountains 181 



Desolation, Canon of, Later views on fossils from; T IX 



Diamond Peak 164 



Structure of 204 



Disintegration : 182 



Dynamics of 183 



Displacement, Cliffs of 14 



diagrams 174 



, Diverse 16,17,25,29,31 



, Slopes of 14 



', Types of 17 



of the Uinta Mountains 176 



, Zones of diverse 16, 17 



Diverse displacement 16,17,25,29,31 



Drainage, Antecedent and superimposed 12 



, Reversed 35 



of the three geological provinces 7 



Drift 171 



Dry Mountains, Structure of 206 



Dnttou, Capt. C. E., on Black Butto Quartzite 160 



Dutton, Capt. C. E., on reversed drainage 35 



Ellsworth, Mount "20 



Epochs separating groups 61 



Erisocrinus typus 89 



Erosion 188 



as a measure of geological time 33 



, Conditions affecting rapidity of 34 



Eruptive mountains 36 



, Types of 18,22 



Eupachycriuus platybasis 108 



Flaming Gorge district 140 



Group, Distribution of 151 



, Fossils of ,. 92 



, relations 68 



, Section of ; 152 



