398 



INDEX. 



Port Adams, rocks at 317 



Fort Greene Park, rocks of 309 



Forty Steps, Newport, R. I., rocks at and near. 311-314, 372 



Foxboro, Mass., coal bed in 205 



gabbro and granitite at 118 



Fox Hill, Conanicut Island, R. I., geologic features 



of 228-229 



Franklin Society of Providence, R. I., list of Coal 



Measure plants compiled by 205 



records of well borings preserved by 163 



Fuller, M. L., cited on Carboniferous area north of 



Brockton 129 



Gabbro, occurrence of 118 



Gardeners Week, Mass., Carboniferous beds on 267-268 



Gay Head, Marthas Vineyard, deposits of arkose at. 54 



Geological succession of formations in the Basin 8-10 



Gerablattina fraterna, occurrence of 203 



Gerablattina scapularis, occurrence of 203 



Glacial erosion, amount of 71-76 



difficulties of stratigraphic determination occa- 

 sioned by 102-103 



effects and products of 64-77 



relatively rapid and effective work of 73 



Goat Island, R. I., rocks of 309 



Goat Rock Cliff, near Plainville, R. I., section at... 180-181 



Goniopteris (Pecopteris) unita, occurrence of 204 



Gooch, F. A., analysis of coal by 83, 161 



Gould Island, R. I., rocks of 272-273, 356 



Granite, areas of 262-263 



Granite-porphyry, areas of 117 



Granitic rocks, occurrence and character of 114-116 



Granitites, occurrence, character, and age of 114-116, 118 



Griswold, L. S., and Marbut, C. F-, cited on bound- 

 ary of Carboniferous Basin 127-128 



Gull Rocks, R. I., shale of 307 



K. 



Hall, James, orogenic theory of 16 



Halsey Farm, Silver Spring, R.I. , sections at ana 



near 166, 167 



Hamilton, R. I., Carboniferous rocks near 249, 250 



Hammond Hill, Mass.. Kingstown series at 344 



Hanging Rock ridge, features and structures of 367, 368 



Hanging Rocks, conglomerates of 298-300 



pre-Carboniferous area near 300-303 



Hanover, Mass., Carboniferous sandstone rock at . . . 193, 194 

 Hanover Four Corners, Mass., Coal Measure beds 



near 194 



Hardon mine, analyses of coal from 190, 191 



High Hill Point, R. I., conglomerate at 278 



Hills Grove Station, R.I. , Carboniferous beds near.. 257 



Hills Grove, R. I., sandstone at 334 



Hitchcock, C. H., cited on supposed Devonian rocks. 141 

 cited on occurrence of coal near Cochesett Sta- 

 tion 192 



coal near Cochesett Station shown on map of 192 



features of geologic map prepared by 125, 133 



Hitchcock, Edward, analysis of limestone by 150 



cited on age of the granite rocks 114 



cited on boundary of Carboniferous basin 127 



cited on dip of beds near Mansfield Junction 190 



cited on flora of shales at Mansfield 191 



Page. 

 Hitchccck, Edward, cited on occurrence of coal in 



Foxboro 190 



cited on Rosbury (^Dighton) conglomerate 184 



cited on supposed Devonian and other rock 



strata 14 1 



cited on tbe coal beds of tbe basin 205-207 



cross section of Carboniferous area of Warragan- 



sett Basin cited from 1 23 



early attempts to discriminate geologic horizons 



by 133 



features of early geologic maps prepared by 124 



Hoppin Hill, Worth Attleboro, Mass., Cambrian 



rocks and fossils at and near 386,388-392 



view of 384 



Hope Island, R. I., rocks and features of 235-237, 341-342 



Hornblende rock, occurrence and character of 117 



Hunt, T. Sterry, geologic correlation of limestone of 



Carboniferous basin suggested by 151 



Hunts Mills, R. I., section at , 169 



Hyolitbellus micans, occurrence of 388,389,393 



Hyolitbes americanus, occurrence of 390 



Hyolithes billingsi, occurrence of 389 



Hyolitbes communis, occurrence of 388, 392 



Hyolithes communis var. emmonsi, occurrence of. . . 390, 392 



Hyolithes micans, occurrence of 386 



Hyolitbes princeps, occurrence of 386, 389, 393 



Hyolithes quadricostatus, occurrence of 390 



I. 



Igneous action, relation of plastic movement of rock 



to ' 19 



Igneous intrusions, difficulties of stratigraphic 



determination occasioned by 101 



Igneous rocks, occurrence and character of. . 152-155, 114-118 



Insect fauna of the Rhode Island coal field, list 



comprising 202, 203 



Iron Hill, Cumberland, R. I., bowlder train at.. 72, 73, 76 



iron ore of 89 



Iron ores, occurrence of 88-90 



Island Rocks, sbales and slates of 286 



Jackson C. T., cited on coal beds at Portsmouth 



mine 207 



cited on coal bed in Cranston 206 



cited on origin of Carboniferous clay slate 202 



cited on primary rocks 104 



cited on strike and dip of strata inclosing coal 



beds 189, 190 



cited on strike and dip of strata inclosing coal 



beds near Mansfield Junction 189, 190 



features of early geologic map prepared by . 124 



Jacobs Point, conglomerate near 261 



K. 



Kingstown sandstones, divergent views of authors 



as to value of x viii 



geologic equivalents of 134,358,359,361-363 



folding in 345,346,394 



thickness of 345, 346 



Kingstown series, geologic place and equivalents of. 134 



occurrence and character of 159-104, 331-347 



