INDEX TO VOLUME I. 327 



PAGES 



Chrysotus proximus 90 



Circular transformations, direct 116, 134 



Circular transformations, indirect 135 



Clidastes stenops Cope 248 



Coal Measures Faunal Studies, II 163 



Collineations in one dimension 115 



Collineations of Space which leave Invariant a Quadric Surface 281 



Combinations of Groups of Collineations of Space which leave Invariant a 



Quadric Surface 281 



Complex double parameter of a group 129 



Conformal transformations 135 



Continuous groups of projective transformations 115 



Conularia crustula 166 



Cottonwood limestone 181 



Crayfishes, Distribution of Kansas 3 



Crayfishes, Distribution of Kansas, by river systems 9 



Crania modesta 166, 179 



Crinoid stem 165, 167, 179, 180 



Cubic Curve as Locus of Double Points on Moniod 308 



Cyclus, Alphabetical List of Described Species of the Genus, with Synonymy, 274 



Cyclus, Analytical Key to the American Species of the Genus 274 



Cyclus communis, n. sp 270 



Cyclus de Konick, Generic Diagnosis of 270 



Cyclus limbatus, n. sp 273 



Cyclus minutus, n. sp 273 



Cyclus packardi, n. sp 271 



Cyclus permarginatus, n. sp 272 



Cyclus, Some New American Species from the Coal Measures 269 



Cystodictia inequimarginata 181 



Cytoplasmic structures in Gryllus assimilis spermatids 50 



Dawsonella meeki 180 



Deer Creek &hales 165 



Dentalium meekiana 175 



Derbyacrassa (Meek and Hay den) Waagen 166, 167, 170 172, 175, 179, 180 



Derbyakeokuk (Hall) Hall and Clarke 166, 167, 172 



Diaphorus 85 



Diaphorus amcenus, n. sp 86 



Diaphorus contiguus 87 



Diaphorus dimediatus 86 



Diaphorus dubius 87 



Diaphorus flavipes 86 



Diaphorus opacus 86 



Diaphorus simplex 87 



Diaphorus spectabili9 N7 



Dichotrypa subramosa 179, 180 



Dielasma bovidens ( Morton ) White 166, 167, 170, 172, 176, 179 



Dolichopodida? of Grenada, W. 1 75 



Dolichorhynchops osborni, Restoration of 141 



Dover limestone 177 



