272 



INDEX. 



Page. 

 Cambrian formation in Wasatch Moun- 

 tains ' 218 



Cauada, J. W. Dawson, on Carboniferous 



rocks of 245-246 



W. E. Logan on formations of 253 



J. F. Whiteaves on Devonian rocks of. 254 



R. W. Ells, on rocks of 255 



Carboniferous rocks of 256 



Cape Breton, R. Brown on Sydney coal 



field 230-231 



J. P. Lesley on coal measures of 235-236 



Chas. Robb on rocks of 249-250 



H. Fletcher on rocks in 250, 251, 252 



Cape Dauphin, R. Brown on strata of 230 



Carboniferous rocks — 



Mississippian province 77 



Appalachian province 77-78 



Illinois, classification of 160 



Arizona 216 



Colorado 224 



Nova Scotia, Charles Lyell on 230 



New Brunswick, C. Robb, J. W. Daw- 

 son, Matthew, Bailey, and Ells on, 244-247 



Canada, J. W. Dawson on 245-246 



Newfoundland, A. Murray on 246 



New Brunswick, Bailey and Ells on.. 251 



Massachusetts, Barton and Crosby on, 253 



Massach usetts, J. B. Perry on 255 



Canada, F. D. Adams on 256 



Pennsylvania 260-261 



Carboniferous conglomerate of Pennsyl- 

 vania, B. S. Lyman on 86-87 



Carboniferous conglomerate, A. Winchell 



on 179 



Carboniferous limestone of Mississippi 



Valley. 153-154 



Carboniferous system, confusion in mem- 

 bers of 77 



history of 75-82 



original adoption of term 79 



members of 76 



Carboniferous and Devonian rocks of 



Pennsylvania and Ohio, table 119 



Carll, J. F, on oil sands of Pennsylvania, 115 



on rooks of oil region of Pennsylvania 115-117 



names proposed by 115-117 



correlations by 115-119 



Catskill group, A. Winchell on 121-122 



Catskill and Chemung faunas, E. W. Clay- 

 pole on 128 



Catskill and Marshall groups compared.. 181-182 



Chagrin Falls, Ohio, section 176 



Chance, H. M., on millstone grit of Penn- 

 sylvania and England 100 



on rocks of Pennsylvania 117-119 



classification of coal measure con- 

 glomerate 117-118 



Chautauqua, New York, section 176 



Chemung group, J. Hall on Ohio rocks of, 61-62 



correlated with Choteau 147-148 



Meek and Worthen on 158 



White and Whitfield on Iowa rocks 



of 158 



Mississippian province ■ 262 



Page. 



Chemung and Choteau groups 190-191 



Chemung and Waverly, line of separation 



between 187 



Chemung-Catskill, problem of 121-134 



J. Hall on 130 



objection to term 131 



Choteau group proposed, and described 



by G. C. Broadhead 170 



Choteau and Chemung 147-148, 190 



Chester group, flora of 154 



Christy, D., on Goniatite limestone of 



Rockford, Indiana 145 



Cincinnati axis, condition in Devonian 



period 136 



cause of difference of sedimentation. . 155 

 Cist, Z., on coal mines of Wilkes-Barre, 



Pennsylvania 26 



Clapp, A., correlations by 47 



Classification, early names in 18 



Classification of New York rocks by va- 

 rious authors 57 



Clay pole, E. W., classification of rocks of 



Pennsylvania 131 



on Catskill and Chemung faunas 128 



Cliff formation, D. D. Owen on 141 



Coal fields of Ohio, Pennsylvania, and 



West Virginia, compared 89-92 



Coal formations of United States, H. D. 



Rogers ou 85 



Coal measures or Pennsylvania series 83-107 



Coal measures of Ohio, J. S. Newberry on . 87 

 Coal measures and conglomerate of West 



Virginia, W. M. Fontaine on. .*... 87-88 

 Cobscook Bay, Maine, N. S. Shaler on 



Devonian rocks of 256 



Colorado, T. B. Comstock on rocks of San 



Juan County 223-224 



Comstock, T. B., on rocks of San Juan 



County, Colorado 223-224 



Conrad, T. A., classification by 39,45,50 



correlation by 39-40 



fossils of transition 43 



on Silurian and Devonian systems . . . 50-52 



on fossils in classification 51 



Connecticut River, E. Hitchcock on for- 

 mations of 26 



Connellsville, Pennsylvania, section 95-96 



Conglomerate measures, subdivisions of. 109 

 Conglomerate series proposed by W. M. 



Fontaine 93 



Conglomerates and lower Carboniferous 



of Appalachian province 108-120 



Conoquenessing sandstone proposed 101 



Conybeare, W. D., on Carboniferous sys- 

 tem 75-76 



on systems of rocks 78 



Conybeare and Phillips on val ue of organic 

 remains in determining forma- 

 tions 28 



Cornelius, E. , classification of 23 



Correlation, principles of .. .11-12, 133-134, 268-269 



methods of 12 



use of fossils in 12, 21 



early attempts at 18 



