INDEX 



A. 



Page 



Abington, Mass., fault in 129 



Abington quadrangle, Coal Measure beds in 193-194 



Achelaus Hill, West Newbury, Mass., Cambrian 



rocks at 388 



Acknowledgments to coadjutors 211 



Agraulus strenuus, occurrence of 389,390,391,392 



Alethopteris, occurrence of 181 



Allegbeny Mountains, age and character of 10 



Almys Pond, R. I., granite near 316 



Amphibolitein dike at Lincoln, character of 108 



Analyses, coals 83, 161, 191 



limestone 150 



Annularia, occurrence of 191,285 



Annularia longifolia, occurrence of 268, 320, 321 



Anthracomartus woodruffi, occurrence of 202 



Appalachian Mountains, ancient mountain range 



east of and parallel to 11 



difference in degree of erosion in eastern and 



western parts of 40-46 



difference in form of folds on east and west 



sides of 12-13 



folds of 10-13 



form and origin of basins east of 13 



Aquidneck Coal Company, operations of 207 



A quidneck Island, R. I., Aquidneck shales on 252-358 



coalbedsof "9,80 



coalmine in 207 



folds on 345 



granite area on 273-274 



rocks of 284-330 



suggested exploration for coal on 85 



Aquidneck shales, areal distribution of 361 



debatable question as to inclusion of Kingstown 



seriesMn xviii-xix 



equivalence of Kingstown sandstones and 361-363 



folders of - 394 



fossils of 363 



geologic equivalents of 358-359 



occurrence and character of 348-363 



table showing geologic place and equivalents of. . 134 



thickness of 352-354,357-358,359 



view of wave-cut bench in 352 



view showing fretwork feathering of 362 



Arkose, occurrence and significance of 50-55 



Ashton, R. I., Cumberland quartzite at 106 



Ashton schists, occurrence and character of 107 



Asterophyllites, occurrence of 174, 191 



Asterophyllites equisetiformis, occurrence of 168, 204 



Atlantic coast, basins of sediroental depression on.. 13-15 



Carboniferous basins of 38-39 



character and extent of erosion on 44-46 



geologic history of shore land basins of 30-36 



Page. 



Attleboro. Mass., analysis of limestone from 150 



Carboniferous beds in 175-180 



sections at and near 153, 176, 177, 182 



syncline at -. 179-180 



view of Carboniferous sandstones at 176 



views of conglomerate at and near 176, 184 



view of pebbles from Dighton conglomerate near. 186 



view of raindrop imprints on rocks near 178 



view of ripple-marked sandstones near 178 



Attleboro district, Cambrian strata and fossils of... 386-393 



Attleboro sandstone, occurrence and character of . .. 151-152 



table showing geologic place and equivalents of. 134 



Arachuida, occurrence of 202 



Archean rocks, occurrence and character of 114-118 



Arkose, occurrence, character, and significance of... 50-58, 

 135-139, 284-286, 375-380 



Arnolds Mills, R. I., granite porphyry at 117 



geologic section of beds near 157 



IB. 



Barbers Height, R. I., Kingstown series at 334 



Barton, G. H., acknowledgments to 211 



cited as to anticlinal structure of Hanging Rock 



district 299 



cited on structure of Hanging Rock ridge 367 



Basal conglomerates, occurrence of 375-380 



Base-leveling, general character and extent of 47-49 



marine actions contributory to 70 



Beacon Hill, R. I., conglomerates at and near. 304, 305, 369-370 



Beaver Head, R. I., rocks of 338-339 



Bibliography of the Cambrian and Carboniferous 



rocks 212-214 



Bishop Rock, R.I., shales near 305-306 



Black Point, R. I., rocks near 290-293,334 



Blackstone Coal Company, operations of 206 



Blackstone River, folded and faulted Carboniferous 



shales on 162 



Blackstone series, geologic place of 8 



occurrence, character, and relations of. : 104-109 



Blake Hill, Mass., fault block at 180 



faults near 183-184 



thrust plane at 183 



Blattinaria>, occurrence of 203 



Bogs, agricultural utilization of 78-79 



Bonnet (The), R. I., Kingstown series at. .. 333,334,337,344 

 Boston Basin, Mass., geologic history of 13-15,24-25 



orogenic action in 24-25 



Boston Neck, R. I., faulting near 377 



Kingstown series at 333 



Bowlder clay, thickness and character of 69-70 



Bowlder trains, length of 71-72 



Brachiopods, Cambrian, occurrence of 109,110,111,112 



395 



