INDEX. 



397 



Page. 

 Crosby, "W. O., and Barton, G. H., cited on Carbon- 

 iferous ago of red beds about North Attle- 



boro 141, 387 



cited on dike rocks of Paradise Hock— Hanging 



Rock region 301 



cited on Primordial rocks - 109 



Cumberland, R. I., coalmine in 206 



conglomerate beds at 140 



iron ore at 89 



Cumberland Hill, R. I., bowlder train at 72 



Cumberland quartzites, character and occurrence of. 106-107 

 Current and surf action, character and extent of ero- 

 sion hy 76 



D. 



Dale, T. Nelson, cited as to anticlinal structure of 



Hanging Rock district 299 



cited as to unconformity between Cambrian and 



Carboniferous 30S 



cited on fern impression in shale on Conanicut 



Island 339 



cited on obscuration of rock relations hy fault- 

 ing 380 



cited on occurrence and position of conglomer- 

 ates at Newport 373 



cited on occurrence of coal seams and coal plants 



in excavations at Newport 372 



cited on occurrence of quartz-porphyry on New- 

 port Neck 316 



cited on possible unconformity between Carbon- 

 iferous arkose and Cambrian shale near 



Sachuest Point 287 



cited on rocks of Paradise Rock, Hanging Rock 



region 303 



cited on salt- water fossils in Carboniferous shales. 381 



cited on structure of Hanging Rock ridge 367 



cited on thickness of shales at Eastons Point. .. 358 



early geologic map prepared by 133 



fossil fern locality, Conanicut Island, discov- 

 ered by 347 



Dana, J. D., cited 127 



Davis, W. M., cited on formation of faults in the Con- 

 necticut Basin 23 



Davisville, R. I., Carboniferous rocks near 251 



Dedham quadrangle, Carboniferous beds of 187-193 



Denudation, difficulties of stratigraphic determina- 

 tion occasioned by 101-102 



Deposition, cycles of 49-50 



Devils Foot Ledge, R.I., view showing cross stratifi- 

 cation in pebbly sandstone at 248 



view showing sandstone-gneiss at 334 



Diabase, occurrence of - 152-153 



relations of felsite and 154 



view of dikes of 152 



Diamond Hill, R. I., Cambrian rocks and fossils of . . 393 



granite-porphyry and quartz at 117, 118 



quartz mass at 155 



Dictyopteris scheuchzeri, occurrence of 204 



Dighton conglomerate, views of 184 



view of pebbles from 186 



Dighton conglomerate group, beds of 184-187 



table showing geologic place and equivalents of. 134 



Dikes and dike rocks, occurrence of 27-29, 152-153 



Diorite, occurrence of 118 



Distortion of pebbles and fossils by compression 18 



Dodgeville, Mass. .conglomerate beds near 175-176 



Dumpling Rock, Conanicut Island, character of 234-235 



Dutch Island, R. I., geologic features of 227-228,337-338 



E. 



East Foxhoro, Mass., gabbro and grauitite at 118 



East Greenwich, R. I., Carboniferous rocks near. 251, 252-253 

 East Providence, R. I., crosB section near 168 



Tenmile River beds at : 164-165 



Eastons Point, R. I., rocks at and near . 294-295, 357, 3G5, 372 



Eastons Pond, conglomerates near 303, 370, 371 



Economic resources of the basin 77-90 



Emmons, A. B., analyses of coal cited from 191 



cited on fraudulent coal core from boring made 



near Lebanon Mills 172 



cited on Rhode Island coals 83, 84, 86 



Emmons, E., cited on Cambrian rocks 104,109 



Erosion, glacial, amount of 71-76 



relatively rapid and effective work of 73 



Ettoblattina clarkii, occurrence of 203 



Ettoblattina exilis, occurrence of 203 



Ettoblattina gorhami, occurrence of 203 



Ettoblattina illustris, occurrence of 203 



Ettoblattina reliqua, occurrence of 203 



Ettoblattina scholfieldi, occurrence of 203 



Ettoblattina sp., occurrence of 203 



E\ 



Fall River, Mass., arkose deposits near 51-52 



granite and Carboniferous rocks at 270 



Faulting, occurrence and directions of 310,377 



Felsites, occurrence of 116, 153-155 



Ferns, fossil, occurrence of 347, 363, 374, 378 



Finlay, J. R., acknowledgments to 211 



cited on boundary of Carboniferous basin 127 



Finlay, F. H.,and Richmond, H. Incited on gabbro 



hills of Sharon, Mass 118 



Flint Point, R.I. , arkose and shaly rocks near 283 



Flora, Carboniferous 170, 181,204 



Foerate, A. F., area surveyed by xvii 



cited on quartz veins in granite-porphyry at 



Diamond Hill, R. 1 118 



cited on Warasutta group 141 



cited on fence- wall geology 102 



cited on hori zon of limestone at Nahant 388 



description of Cambrian deposits of the south- 

 western part of the basin prepared by 381, 393 



description of the Carboniferous strata of the 

 southwestern portion of the basin prepared 



by 215-380 



AYamsutta group of 141 



Foerste, A. F. and Shaler, N. S., cited 109 



Fogland Point, R. I., conglomerate at 278-279 



Folding, age of the 22-23 



types of 1G-17, 21-22 



Folding and faulting, difficulties of stratigraphic de- 

 termination occasioned by 101 



Folds, forms and attitudes of 16-17, 21-22 



plan of 27 



Foolish Hill, Foxboro, Mass., basal arkose at 135 



Carboniferous strata at 188 



exposure of red rocks of Wamsutta groups at . . 143, 144 



faul t at 128 



section at 190 



Fordilla troyensis, occurrence of 389 



