398 



INDEX. 



Page. 



Fort Adams, rocks at ^^7 



Fort Greene Park, Tooks of 309 



Forty Steps, 2!Jewport, E. I., rocks at and near. 311-314,372 



Foxboro, Mass., coal bed in 205 



ga-bbro and granitite at il8 



Fox Hill, Conanicut iBland, K. 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 



Gr, 



Gabbro, occurrence of - 118 



Gardeners 3!feok, 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 fratema, occurrence of 203 



Gerablattina scapularis, occurrence of . , 203 



Glacial erosion, amount of - 71-76 



difficulties of stratigrapbio 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 Plamville, R. I., section at... J80-181 



Goniopteris (Pecopteris) unita, occurrence of 204 



Gooch,F.A.,analysisofooalby... 83,161 



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



Granite, areas of , 262-263 



Granite-porpbyry, areas of , 117 



Granitic rocks» occurrence and character of 114-116 



Granititesj occurrence, character, and ago of . . . ,114-116, 118 

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

 ary of Cwboniferous Basin — - * 127-128 



GullRo«ks,B.I.,shaleof 307 



Hall, James, orogenic theory of 16 



Halsey Farm, Sily^r Spring, K. I., sections at and 



near.-,..-- 166,167 



Hamilton, B. I., Carboniferous rocks near — 249, 250 



Hitmmond Hill, Mass,, Kingstown series at 344 



HaagiBg Book ridge, featetiw and structures of 367, 368 



Hanging Books, congbmerttee of 298-300 



pre-Carboniferous area iiear , 300-303 



Hanover»MAs»., Carbonif&rous sandstone rock at .. . 193, 194 

 Hanover Fonr Comers, Mass., Coal Measure beds 



near .,.. 194 



Hardon mine, analyse of coal from.-, 190,191 



High Hill Point, B. I., oongloraerate at 278 



Hills Grove Stataon, B. I,, Carboniferous beds near. , 257 



Hilla Grove, B, I., sandstone at... 334 



Hitchcock, 0. H., cited on supposed Devonian rocks . 141 

 €iit€*d on occurrence of coal near Coohesett Sta- 

 tion 192 



coal near Cochesett Station shdwn on map of . . . . 192 



features of geologic map prepared by 125, 133 



Hitchoock, Edward, analysis of limestone by 150 



cited on age of the grajiit© rocks 114 



cited on boundary of Carboniferous basin 127 



cited on dip of bods near Mansfield Junction 190 



cited on flora of shales at Mansfield 191 



Page. 

 Hitchcock, Edward, cited on occurrence of coal in 



Foxboro 190 



cited on Roxbury (=Dighton) conglomerate 184 



cited on supposed Devonian and other rock 



strata - 141 



cited on the coal beds of the basin 205-207 



cross section of Carboniferous area of Narragan- 



sett Basin cited from 123 



early attempts to discriminate geologic horizons 



by 133 



features of early geologic maps prepared by 124 



Hoppin Hill. North Attleboro Mass., Cambrian 



rocks and fossils at and near 886, 388-392 



view of - 384 



Hope Island, B. 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, B.I. , section at , » 169 



Hyolithellus micans, occurrence of « 388,389,393 



Hy olithes americanus, occurrence of. .... - 390 



Hyolithes billingsi, occurrence of 389 



Hyolithes communis, occurrence of 388, 392 



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



Hyolithes micans, occurrence of 386 



Hyolithes 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 Bhode Island coal field, list 



comprisiag 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, shales 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 



Jt3h,« 



Kingstown sandstones, divergent views of authors 



as to value of xviii 



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 159-164. 331-347 



