Index. 



417 



Chara 38 



Characeae 38 



Charcoal, bone, for filtering. . .72-73 



Chariocephalus li-O 



Charleston, S. C. ..24, 162, 170, 177 



Chactctes 222, 228 



Chase. C. L 293 



Chemical composition of soils. . . .394 



elements in soils 39.3 



Chesapeake biological laboratory.. 22 



Chicago, 111 23, 170. 177 



Cltolodus 24,1 



Chomaio(Uis 245 



Chonctes 227 



Chonopohfjllum 209 



Christiana, Norway.. 2, 3, 165. 171. 



..295 



Christiansen. Peter ...183, 299, 344 

 Cincinnati. 0...2, 3, 9. 18, 24. 162. 



170, 177, 294, 305 



Cladodus 245 



Clarlopora 209 



Cladrastis 34 



Claghorn, Henry T 298 



Clathopora 223 



Clay, cont&ct 402 



siliceous 401 



Claytonia 90 



Cleome 64, 65 



Clidophorns 236 



CUmacoqraphtus 208 



Climate, of Western Dakota .... 63 

 Climatic effect of irrigation. .. .387 

 Climatologv of Minnesota. ..... .151 



Clinosphistha 23G 



Clinotonia 34 



Clisospira 238 



Closterium 41 



Clough. Col. J. B 11 



Coals. Northwestern, analysis of.. 96 



value of 97 



Cobalt 181 



Cochliodus 245 



Codaster 218 



Codonites 218 



Goelioc 213 



Coenitcs 209 



Coeur d'Alene, minerals of 95 



range 88 



Collection. Dr. Nuttall's botan- 

 ical 31 



Colorado group of S. Dak 383 



Colorado Springs, Colo 305 



Columbia. S. C 25 



Columbus. 24, 170 



Columnaria 209 



Concfiicolites 219 



ConcJiopeltis 238. 342 



Conglomerate formations 312 



Conocardium 236 



Conocephalites 220 



Constantinople 26 



Constcllaria 223 



Continent-building 200-205 



Conularia 242 



Cook. John H 300 



Copenhagen 2 



Copper, mining in Minnesota. . . .105 



native 109 



ores of Minnesota 110 



Corbett, Rev. Timothy 172 



Cordoba. Argentine Republic 



18. 2,5, 165. 171. 179, 295, .307 



Cornwall .England 307 



Coscinium 223 



Coteau des Prairies 57 



region, S. Dak 381 



Crania 227, 341 



Halli 328 



Crepicephalus 220 



Cretaceous rocks 131, 182 



iron-ore formation 280 



Crinoid stems 317 



Grystatella mucedo 314 



Crocker, A. L 183 



Cross, Sophia, collection 311 



Cross, Rev. R. T 299 



Cruclferse 174 



Crustacea 300 



Cruziana 247 



Cryptonella 227 



Cryptozoon 282 



giganteutn 283 



minnesotense 281-284 



Cryptozoon saxirodeum 283 



stecli 283 



Crvstalline schists, Black Hills.. .186 



Ctenacanthus 245, 246 



Ctenopetalus 246 



Cupriferous rocks, extent of 106 



Cyathaxonia 209 



Cyclonema 238, 239, 342, 343 



Cyclopora 223 



Cycloporella 223 



Cyclops 41 



Cyclopteris 247 



Cylindricoelia 208 



Cymopterus 67 



Cyothophyllum 209 



Cypricardella 236 



Cypricardinia 236 



Cypricardites 236, 218, 342, 343 



luculentus 338 



minnesotensis 338 



triangularis 338 



vicinus 338 



Cypris 41 



Cystidean 218 



Cystiphyllum 209 



Cystodictya 223 



Gystostylus 209 



Gyrtina 227 



Gyrtoceras 242-243 



CyrtoUtes 239 



Gytherc 220 



Dalmamtcs 220-221 



Daphnia 41 



Darlington. Dr. William 35 



Darwin, on soils 392 



Davenport, la 2, 162, 294 



Decadocrinus 21,S 



Decomposition, geologic ....193. 197 

 Deformation, geologic. ..192, 198-206 



Degradation, geologic 192, 196 



Dekayella 223 



Dekayia 223 



Delphinium 89 



Deltodus 246 



Demarara, British Guiana 



296, 179, 307 



Dendrograptus 208 



Dentalium 239 



Denver Colo 



...22, 162, 170, 177, 294, 305 



Deposition, geologic 192, 195 



Depression, geologic 192 



Depth of artesian wells 384 



Dcsmodium 66 



Dcsmod'ms 240 



Des Moines, la 294, 305 



Devonian Age, limestones of 310 



fossils 317 



rocks 131 



De Vries 362 



Diabases, analyses of 398, 399 



Diaptomus 41 



