IJM JJiiiA.. 



401 



Page. 



Jled beds of 'Wamsutta group, exposures of 142-149 



map sliowing areas of 142 



Eed color of Cambrian and Oarboniftirous rocks, ori- 



ginof 62-63,115 



Keservoir Pond, Attleboro, Mass., section near 153 



Kbacopbyllum adnascens, occurrence of 191 



Rbapbidiopsis diversipenna, occurrence of 202 



Rhode Island Coal Measrg:es, table showing geologic 



place and equivalents of 134 



Ricbmond Basin, Virginia, geologic history of 13-15 



Bidgway, Thos. S., cited on operations of th^ Mans- 

 field Coal and Mining Company 205 



section of boring near Lebanon Mills made by .- 170-172 



Ripple-marked sandstones, view of 178 



Riverside, R. I., geological. section at and near 166 



synclinal fold in Kingstown series near 345 



Tenmile River beds near 166 



Robinson Hill, Horth Attleboro, Mass., geologic sec- 

 tion at ' 145 



Rocky Hill, Providence, R. I., view of 162 



Rpcky Point, R. I., geologic horizon of conglomer- 

 ates of - 346 



Rocky Woods conglomerate, table showing geologic 



place and equivalents of — - 134 



Roger "Williams coal mine, Cumberland, R. I., opera- 



tionsat - 206 



Rogers, W. B , cited on Potsdam sandstone 109 



Rose Island, R. I., rocks of 308,380 



Roxbury (= Dighton) conglomerate, occurrence of. . 184-187 



Rumstiok Keck, R. I., Carboniferous rocks on 260, 344 



synclinal fold near --.« 345 



Russell, I. C, cited on coloration of rocks 115 



Sachems Rock, East Bridgewater, Mass., Coal Meas- 

 ure beds at , 193 



Sachuest Heck, R. I., arkose and pre- Carboniferous 



rocks on 284-288,379 



Sakonnet River, conglomerates near — , 278-281 



Sakonnet River synoline, feature s of - 369 



Sakonnet sandstones, occurrence and thickness of . . 358, 



359-360 



Salterella curvata, occurrence of 386, 389 



Sand Point, Prudence Island, R. I., micaceous shales 



at 239-240 



Sandy Point, Aquidneck Island, R. I., Carboniferous 



shales near 289-290 



Sapowet Point, B. I., Carboniferous rocks near 280 



Saunderstown, R. I., Carboniferous rocks near 242, 248 



Kingstown series at 334 



Scerella reticulata, occurrence of 890, 392 



Schizopteris (Rhacophyllum) trichomanoides, occur- 

 rence of , 204 



Sclyrader, P. C, observations made by 106, 107 



section of Goat Rock CM", near Plainville, meas- 

 ured by 180-181 



Scoli thus, occurrence of bujxo ws of- , 197 



Scholithus linearis, occurrence of . - 109, 110, 112 



Scudder, S. H., cited on insect fauna of the Rhode 



Island coal field ^ - - 202 



Sears, John, Cambrian rocks and fossils discovered 



by - 388 



Sections, geological - - 394 



Sections and maps, notes on 894 



Sedimentary deposits, thickness of 31 



MON XXXIII 26 



Page. 



Sedimentation, cycles of .-.., 49-50 



Seekonk, Mass ., boring showing coal at 86 



coalbedat 206 



exposures and sections of Carboniferous rocks in . 169-173 



Seekonk beds, occurrence and character of 173-175 



Seekonk Coal Mining Company, section of boring 



made for 170-172 



Seekonk conglomerate, occurrence and character of. 174-175 

 table showing geologic place and equivalents of. 134 

 Seekonk sandstones, table showing geologic place 



and equivalents of...... 134 



Sewammock Keck, Mass., sandstone at 268 



Shaler, K. S., Cambrian rooks discovered by 386 



cited on increased erosion due to narrowing of 



glacier ,.,,.. 74 



cited on Iron Hill bowlder train 72 



cited on pre- Cambrian rocks 104 



letter of transmittal by xv 



preface by xvii-xx 



report on general geology by 1-214 



Shaler, K. S., and Foerste, A, F., cited on Cambrian 



fossils from Korth Attleboro 109, 141, 386 



Sharon, gabbro hills of 118 



Sharpies, P. P., photographs made by- 211 



Shearing planes, areas showing - 20-21 



Sheep Point, rocks of - . 314-<{15 



Sheldon ville, fault at , 127 



Shumatuscacant River, fault near 129 



Sigillaria? occurrence of -.-. 165,191 



Sigillaria volzii, occurrence of 181 



Silurian rocks, occurrence of pebbles from 109-113 



Silver Spring, R. I., fossil insects from 203 



view of Carboniferous sandstones at 166 



Silver Spring Station, R. I., sections at and near - . . 166, 167 



Sin and Plesh Brook, micaceous schist on 272 



Slate Hill, R. I., rocks at and near 320, 329-330, 356, 364 



Smithfleld limestones, occurrence and character of, . 107-109 



Smiths Beach, R. I., rocks near 292 



Sneech Pond, R. I,, copper and iron ores near 109 



Cumberland quartziteat 106 



Sockanosset Hill, R. I., Carboniferous beds at and 



near 256-257 



Sockanosset sandstones, exposures of 163 



table showing geologic place and equivalents of. 134 



Soils, character of 77-79 



South Attleboro, limestone bed at - 149-151 



quartzose conglomerate near 140 



section of Wamsutta formation at 149 



Sphenophyllum dentatum , occurrence of 191 



Sphenophyllum equisetiformis, occurrence of - 320 



Sphenophyllum erasum, occurrence of 191 



Sphenophyllum oblongifolium, occurrence of. 204 



Sphenophyllum schlotheimii, occurrence of 168 



Sphenophyllum truncatum, occurrence of 191 



Sphenopteris (Hymenophyllites) furcata, occurrence 



of 204 



Sphenopteris lanoeolata, occurrence of 204 



Sphenopteris Salisbury!, occurrence of 191 



Spider, Carboniferous, occurrence of 202 



Spindle Rock, Carboniferous shales of 309 



Steep Brook, Mass., arkose deposits at 51-52 



conglomerates near 378 



granite and Carboniferous rocks at 269-270 



Stenotheea curvirostra, occurrence of 390 



Stenotheca rugosa, occurrence of 386, 388 



Stenotheca rugosa var. abrupta, occurrence of , 390, 392 



