442 



INDEX. 



Page. 



Nahant, Massachusetts — Continued. 



strati graphical position of limestone. 271 



W. O. Crosby on rocks of 271 



Nason, F. L. f on Cambrian of "New Jersey 123, 287 



Nepigon series 339 



Nevada, G. K. Gilbert on rocks of 156 



E. E. Howell, on rocks in 156 



Arnold Hague on rocks of 158,159,160 



Newberry, J. S., on age of Lake Superior 



sandstone 194 



ou rocks of Texas 218 



on rock9 of Arizona 219,220 



New Brunswick, A. Gesner on rocks of. . . 59 



W. B. Rogers on rocks of 60 



J. W. Dawson on rocks of 60 



J. Kobbon rocks of 60 



J. F. W.Johnston on rocks of 60 



G. F. Matthew, classification of rocks 



of 61 



L. W. Bailey on rocks of 61, 64 



G. F. Matthew, on rocks of 62, 64 



Cambrian rocks of 273, 274 



problems for investigation in 381 



New Brunswick and Capo Breton, Cam- 

 brian rocks of 59-67, 262, 267 



fossils from 80-88 



C.F. Hartt on 80 



E.Billings on 80 



C.F.Matthews on 81-88 



C.D.Walcott on 81 



New England, C. H. Hitchcock on classifi- 

 cation of rocks of 72 



Newfoundland, historical review of work 



in 50-55 



J. B. Jukes on rocks of 50, 51 



J. W. Salter on Paradoxides from 50, 78 



C. T.Jackson on rocks of 50 



H.W.Bayfield on rocks of 50 



succession of rocks in 51 



W. E. Logan on rocks of 51 



Alexander Murray on rocks of. 52 



primordial formations in 53 



J. Howley on rocks of 53 



A. Hyatt on fauna of 54 



J, Milne on rocks of 54 



C. D. Walcott on rocks of 54. 55, 113 



G. F. Matthew on rocks of 55 



fossils from..: 78-80 



pre-Olenellus beds of 261 



northwestern, Cambrian rocks of 253-256 



southwestern, Cambrian rocks of 256-256 



eastern and southeastern, Cambrian 



rocks of 257-262 



Cambrian sediments of 309 



problems for investigation in 380 



New Hampshire, Cambrian rocks of. 70-72, 267, 268 



C. D. Jackson on rocks of 70 



C. H. Hitchcock, classification of rocks 



of 70-71 



New Jersey, Cambrian rocks of 122-123, 287 



fossils of 154 



problems for investigation in 382 



Newport, Rhode Island, W. B. Rogers on 



rocks at 76 



Newton, Henry, on rocks of Black Hills . . 216 



Page. 

 New York, J. D. Dana on quartzites of 



eastern 109 



Cambrian sediments of 311 



problems for investigation in 381 



Nicholson, H. A., on life zones 424-425 



Niobrara River, Wyoming, section . . . 350 



Nisconlith series, G. M. Dawson on 165 



Nomenclature of formations 18 



Nomenclature, geologic, general consider- 

 ations on 236-237 



Nomenclature and classifications, prob- 

 lems of 388-390 



North American Cambrian compared with 



European 372-377 



North American and Europoan forma- 

 tions, compared 414-421 



North Attleborough, Massachusetts, N. 



S. Shalor on rocks of 77 



fossils from 89 



North Carolina, Cambrian rocks of .. 138-139, 299 



problems for investigation in 383 



Northern Appalachian district, definition 



of 91,275 



paleontology of 148-154 



distribution of strata of 275 



Cambrian rocks of 91-122, 275-287 



Northern Appalachian Province, sedimen- 

 tation in 284 



sediments of 308-309, 312, 313 



fauna of 371 



Norwood, J. C, on Lake Superior rocks, 



cited 175,194 



Nova Scotia, Cam brian rocks of 56-59, 262 



A. Gesner on rocks of 56 



problems for investigation in 380 



Nova Scotia gold field, J. Campbell on 57 



A. R. C. Selwyn on 58 



H. Y. Hind on 58 



Nova Scotia metamorphic slate, J. W. 



Dawson on 57 



Nova Scotia gneissoid series, H. Y. Hind 



on 58 



O. 



Obolella pretiosa, range of 286 



Ocoee, definition of 252 



Ocoee conglomerate, description of 143 



Bailey Willis on 299-300 



Ocoee River, rocks of 141 



Olenellus, range of 319,370 



Olenellus fauna, range of 280, 281, 310, 362, 386- 



387, 389 



Olenellus gilberti, remarks on 319, 329 



Ophir City, Utah, section 156, 158, 319-320 



Ordway, A., on fossils from Braintree, 



Massachusetts 89 



Owen, D. D., on rocks of Wisconsin . . 171-172, 173- 



175 



on rocks of Minnesota 181 



on rocks of Iowa 167 



on Lake Superior sandstone 190-191 



on fossils of Upper Mississipi valley. 221-222, 



223 

 Owen, Richard, tabulation of rocks 206 



