380 
INDEX 
Chickamauga Formation, Giles County, Va 330 
Chromosomes and Sex 2 
Clarkoceras 204 
Clinch Sandstone, Giles County, Va 346 
Correlation of Ohio, Indiana, and Kentucky Medinan and Niagaran 
Strata 37 
Croneis, Carey G. with Hubbard, George D. “Notes on the Geology of 
Giles County, Virginia” 307 
Cryptaulus 94 
Cryptaulus filitextus 95 
Ctenodonta 55 
Ctenodonta (?) cataractensis 56 
cf. simulatrix 87 
(?) creditensis 55 
Cycloceras : 222 
Cyclonema daytonense 99 
gyronemoides 101 
Cyclostomiceras 205 
Cyphaspis arkansana 114 
spinulocervix 113 
Cypricardinia jepthaensis 107 
Cyrtogorhphoceras , 267 
Dalmanella eugeniensis 52 
Dalmanites sp 88 
Dawsonoceras , 225 
Diaphorostoma clintonense ; 103 
daytonense 103 
Dictyonema scalariforme creditensis 71 
Dictyophlois reticulata illinoisensis 118 
Diestoceras 262 
Diestoceras eos 265 
indianense 263 
shideleri 266 
Einstein Theory 269 
Ellesmereoceras 202 
Elrodoceras 228 
Elrodoceras indianense 228 
Endoceras 208 
Endoceras proteiforme 210 
Eremoceras 2U5 
Eschman, Karl H. “Primitive Musical Instruments of the Denison 
Collection” 28 
Exogastric Cyrtoceroids of Canadian Age 206 
Foerste, Aug. F. “Notes on American Paleozoic Cephalopods” 193 
“Notes on Medinan, Niagaran, and Chester Fossils” 37 
Geisonoceras 221 
General Theory of Relativity. (Theory of Gravitation) 276 
Giles Formation, Giles County, Va 352 
