Index. 



38c 



Cyclorapnrvula, ni3. 

 Cypricunlitcs, 147, 218. 

 Cypricardites carinata, 218. 

 Cypricardites Ilaiiicsi, 147. 218. 

 Cyitricardites Steiiiiigensis, 218. 

 Cyrtofei-as Vallaiuligtiami, 232. 

 Cyrtolites, 308. 

 Cvrtolites carinata, 311. 

 CVnolites Dveri, oHO. 

 Cyi tolites elegaus, 310. 

 Cyrtolites ornatus, 308. 

 Cytbei-e, 120. 

 Cytliere Ciucinuaiieusis, 120. 



Dalnianites, 142. 

 Dalmanites brevieeps, 143. 

 Dalmaiiites Carlevi, 142. 

 Dietrich, Chas. W., 247. 



Entoraostraca, fresh water, 22. 

 Entoniostraca, order, 117. 

 Equine mammals, 157. 

 Errata, 338. 

 Expressions of the cat, 188. 



Fort Ancient, 277, 289. 

 Frey, Professor, 193, 338. 

 Fusispira, 315. 



Fusispira subfusiformis, 316. 

 Fusispira terebriformis, 316. 



Gasteropoda, monograph of, 302. 



Geological survey of Illinois, 81. 



Geological survey of Indiana, 380. 



Geological survey of Ohio, 287. 



Gilman, Henry, 35. 



Glossary. 285. 



Glyptocrinus Fornshelli, 348. 



GlVptocrinus subglobosus, 7. 



Green, Ashdown H., on the beaver. 54. 



Gdyot's Grammar School Geography, 287. 



Guyot's Physical Geography, 288. 



Heterocrinus heterodactylus, column of, 



2. 

 Heterocrinus simplex var grandis, 13. 

 Hall, Harvey B., on sponges, 65. 

 Hosea, L. M., on Fort Ancient, 289. 

 Hussey, Professor, 26. 



Indian mounds and skulls in Michigan, 



35. 

 Indiana geological survey. 360. 

 Insects, movement on polished surfaces, 



51. 

 Isedrolotila, 214. 

 Isotelus, 137. 

 Isotelus gigas, 138. 

 Isotelus megistos, 137. 



James, U. P., 19, 151, 153. 239, 833. 

 Journal prospectus, 1. 

 Journal, review of, 377. 



Lamellibranchiata, monograph of, 211. 

 Land and fresh water shells, 288. 

 Land plants in the Lower Silurian, 43, 



335. 

 Leperditia, 121. 

 Leperditia Byrnesi, 123. 



Leperditia cylindrica, 122. 



Leperditia niinutissiraa, 122. 



Leidy, Prof., 2ti9. 



Lepidoptera. method of rearing, 154. 



Leptena aspera, 151. 



Les(iiicreux, Prof., 43. 



Lichas, 127. 



Lichas Trentonensis, 127. 



Lichenocrinus tuberculatus, 346. 



List of trees and shrubs, 28. 



Lymnadiadaj, 118. 



Lyrodesma, 226. 



Lyrodesma Cincinnatiensls, 226. 



Lyrodesma plana, 226. 



Marsh, O. C, 157. 

 Meek , Prof., 287. 

 Megalograptus, 343. 

 Megalograjitus Welchi, 343. 

 Megambonia, 225. 

 Megaml)onia Jamesi, 13, 225. 

 Microceras, 311. 

 Microccras, inornatus, 312. 

 Miller, Dr. C. A., 244. 

 3Iodiolopsis, 216. 

 Modiolopsis anodontoides, 217. 

 Modiolopsis modiolaris, 149, 216. 

 Modiolopsis pholadiformis, 282. 

 Modiolopsis terminalis, 217. 

 Modiolopsis truucatus, 217. 

 Modiolopsis Versaillesensis, 150, 216. 

 MoUusca, freshwater, 242. 

 Molluscan fauna of Illinois, 321. 

 Monograph of Crustacea, 115. 

 Monograph of Gasteropoda, 302. 

 Monograph of Lamellibranchiata, 211. 

 Murchisonia, 314. 

 Murchiitonia bellicincta, 314. 

 Murchisonia bicincta, 315. 

 Murchisonia gracilis, 315. 



Natural Philosophy, 378. 



Newberry, J. S., 267, 335. 



Newman, J. W., 288. 



Nicholson, Prof., 2S6. 



Nomenclature, rules of, 351. 



Norton, S. A., 378. 



Notes and Errata on a former paper, 338. 



Nullipores, 153. 



Observations on Stenopora fibrosa and 



the genus Chetetes, 368. 

 Ogyginw, 1-6. 



Ophioglossum vulgatum, 28. 

 Opisthoptera, 326. 

 Orthis crassa, 20. 

 Orthis cyclus, 19. 

 Orthis cypha, 20. 

 Orthis fissiplica, 252. 

 Orthis Morrowensis, 21. 

 Orthonota, 221. 

 Orthonota contracta, 222. 

 Orthonota parallela, 221. 

 Orthonota pholadis, 222. 

 Ortonia, P, 236. 



Pala;omanon, 247. 

 Palffiomanon cratera. 192. 

 PapilionidK of the Malayan Region. 

 161. 



