INDEX TO VOLUME 19 



605 



rase 

 Dikes in Redstone area, Occurrence 



of 227-229 



DiLLARD area of Knoxville formation. 



Sketch of 394 



DiLLER, J. D., Conglomerate on Swift 



creeli noted by 154 



DiLLER, .1. S. ; Strata containing the 



.lurassic flora of Oregon 367-402 



— , Titles of papers by oG8 



Distribution of gold in the Saddle and 

 Leg region of the Meguma series of 



Nova Scotia (read by title) 576 



Dodge, James A., Analysis of Giant 



springs made by 343 



Dolomite, Occurrence in Theresa quad- 

 rangle of ■•■• • iV'i 



Dolomites, Silurian, Occurrence of . . . . 324 



Dolores sandstone. Occurrence of 56 



DoTHAN- formation. Relation to Buck 



peak of • • 374 



Relation of Elk river plant beds 



to 379 



, Calcareous cement and quartz 



veins in "-_ 5? 



Dry vallev, Utah, Canyons of 5i-fal 



, Hill of white Jurassic sand- 

 stone at •_ ■ 57 



, Origin of debris in 59, 60 



, View in. See plate 3 56 



Duck creek. Section of Casper forma- 

 tion on • • 4-" 



Dumas, J., Transmutability of metals 



affirmed by I'-O, 121 



Dupi.xT, , cited on sedimentation 



in running water i-,~a\ 



Dust storms, Effect of 81, 82 



DuTTOX, C. E., cited on climatic condi- 

 tions in the Plateau country 62 



DuTTO.v, Charles Edward, elected a 



fellow 522 



— , Title of paper by ^- ■ w ^- 



DwYKA tillite. Occurrence in South 



Africa of 3ol 



Pearly Cambrian glacial period. The 353-3.oo 

 EvRXH. Kelvin's solution of age of.... 128 



— , Radioactivity and age of 127-13.-3 



— . Itutherford's computation of age of. 166 



— , Surface gradient of 131, 132 



— , Temperature of 130, 131 



— , Temperature at consolidation of . . . . 142 

 — , Time of separation of moon and. . . . 130 



Editor, Election of • • ■ 2^1 



— . Report of 519-o20 



Elburg, Armenia, Character of glacia- 



tion in ," v " 



Elftmax, Arthur H., Acknowledg- 

 ments to • ■ ■ „3l 



Elk river, Oregon, Plant beds of . . . 3ib-377 



plant beds, Relation to Dothan 



formation of • • • ^ig 



Myrtle formation of. . . 6i_>i 



region, Fossilplants of 377 



Electrons, Character of 114 



Elemk.nts, Formation and classification 



of 1-1 



Elster and Geitel, Study of radio- 

 activity by _„„ 



Emerson-, B. K., Title of paper by . 538 



E.MMONS, , cited on character of 



rocks of the Paleozoic in north- 



-123 

 136 



western New York 1*>3 



— cited on Depanville water lime 164 



E.MA.NATioNS of radium, thoriam, and 



actinium 11° 



Embar formation of the Carboniferous 



system ^^^i jo 



, Fossils and age of 4l« 



, General relations of 416 



Page 

 Embar formation near Muddy creek, 



Section of 417 



. Section west of Fort Washakie, 



Wyoming 417 



Ejiersox, B. H., Title of paper by 569 



Engelmann, Henry, Topaz locality first 



discovered by 178 



England, Probability of glacial deposits 



In 352-353 



Eocene period, Characteristics of for- 

 mation of 437 



— rocks. Relation of plant beds to 375 



EoLiAN erosion in arid regions 81-83 



EoPHYTON, Discovery by Selwyn of 



the 102, 103 



"Eparchean," Use of term 13 



Equador, Interglacial periods in 358 



Erbuim, Occurrence in solar spectrum 



of 123 



Erie harbor, Location and characteris- 

 tics of 486-488 



Erosion, Evidences in Big Cottonwood 



formation of 236 



— in Big Cottonwood valley 240 



Minnesota river valley 239 



New Mexican plateaus 75 



— (Sheetflood), Description of 79 



— , Stream water beds due to 199 



Estancia plain. Correlation with Las 



Vegas plateau of 75 



, Underground water supplies of.. 76 



— plains, Geotectonics of 66 



EoLiAN soil in Colorado 53, 54 



Europe (northern), Extent of glacia- 



tion 'in 848 



Europium, Occurrence in solar spec- 

 trum of 123 



EusTANCiA plains, Substructure of . . . 67, 69 

 — • valley, Location and character of . . . 68 

 EvB, A. S., liadioactivity of sea salt 



determined by 140 



— and Mcintosh, Study of radioactiv- 



ity by 136 



Faribault, E. R., cited on age of Me- 

 guma series 101 



— , Reference to report by 112 



Faults and folds of the Grand Canyon 



district. (Read by title) 575 



— , Occurrence in Porcupine Valley 



rocks of 318-320 



Fauna, Carboniferous, Nomenclature of. 



332-335 

 — - — , Occurrence in Porcupine Valley 



district of 332-335 



• — , Devonian, Occurrence In Porcupine 



Valley district of 327-329 



— -from southern Michigan 440-453 



— , Graptolite, Occurrence of 325-326 



— -in limestone of Devonian, List of... 283 

 - — , Middle Silurian, Occurrence and 



character of 325-326 



— , Ordovician, Nomenclature of 323 



— • — , Occurrence and character of. 323-324 

 — of Raisin River beds. Classification 



of 546 



Silurian terrains. Character of... 274 



Faunal differences. Discussion of. . 551-553 



Faunas of Monroe beds 545-551 



Favosites, Occurrence in Devonian of 



upper Yukon of 279 



Eellows, Election of 522 



— , List of 590-599 



— , Summary of 600 



Fenno-Scandia, Classification of pre- 



Cambrian rocks of ■ 24 



Field assay of waters. The 501-512 



— • tests of mine waters 509-512 



Financial statement 518 



