6 Index 



Page 



Clay in Ohio 170 



Clay, properties of 171 



Clidophorus, sp 73 



Clitambonites rogersensis, Foerste 69 



Coal, origin of 177 



Coal in Ohio 173 



Conneaut creek 392 



Conodarcium richmondensis, sp. nov 71 



Contribution of Astronomy to general culture 353 



Crania granulosa-cumberlandensis, var. nov 41 



Crj'ptolithus tesselatus, Green 78 



Crytoceras hitzi, sp. nov 78 



Cuyahoga river 394 



Cyclocoelia crassiplicata, sp. nov 36 



Cycloelia ella, Hall 36 



Cycloelia sectrotiata, Ulrich 37 



Cycloelia sordida, Hall 36 



Cyrtocerina madisonensis, Miller 74 



Davis, W. M., reference to 387,397 



Davison, A. W., Thermo-electric Couples 245 



Dalmanites carleyi-rogersensis 85 



Devonian in Ohio 13 



Drainage cycles-Maumee, Whittlesey, Warren and Lake Erie base-levels. . .114-7 



Dunmore's Indian War 417 



Dytactospongia madisonensis, Foerste 20 



Earth origin. Nebular hypothesis 368 



Earth origin, Planetesimal hypothesis 369 



Economic mineral products of Ohio 137 



England's claim to Ohio 411 



Erie canal 128 



Foerste, Aug. F., Preliminary notes on Cincinnatian and Le.xington fossils 



of Ohio, Indiana, Kentucky, and Tennessee 17 



Foote, Earl Harrington, A study of the supposed hybrid of the black 



and shingle oaks 315 



French and Indian War 412 



French claim to Ohio 409 



Frost, Edwin B., The contribution of astronomy to general culture 353 



Galvanometer, standardization of 251 



Geographic conditions in the early history of the Ohio country 403 



Geological relations of salt in Ohio 151 



George Ill's "royal domain" and the Quebec act 413 



Glacial erosion 190 



Glacial motion 188 



Glaciers, work done by 190 



Glass sand in Ohio 153 



Grand river 393 



Great Miami river 396 



