784 



INDEX. 



Bernardston series of Devonian rocks, discussion of. 253-300 



description of region of 260-261 



relation to argillite 261-262 



fault in 2fi5 



limestone of 265-267 



magnetite bed in 267-268 



quartzite bed in 268-269 



niica-scbist and hornblendic beds in 270-271, 276-282 



feldspatbic quartzite of 282-283 



beds of 285 



original character and metamorphism of 285-287 



petrograpbical description of 287-295 



Beryl, occurrence of 755-756 



Biotit e-gneiss, description of 44-45, 182-183 



Eiotite-granite, Chesterfield 318-322 



Biotite-muscovite-granite, occurrence and character 



of 314-318 



Biotito-quartz-schiat, Bernardston series 289-290 



Black Rock core, Mount Holyoke, description of 489^94 



contact with diabase (figured) 490 



Blandford, Iloosac schist in 73-75 



liyroxtnite in 85-90 



Blandford, serpentines in 85-90, 102-104, 104-108. Ill 



arai>hibolites at 96-97 



Savoy schist in 159 



description of biotite-gneiss from 182-183 



dikes In 327 



Blue-quartz gneiss 28 



Bolton limestone, metamorpiiism of 155 



Boston and Albany Railroad, section along 71-72 



Bowlders, description of 559-561 



Bowlder trains 549-550 



Brimfield, cordierite granitite at 321-322 



garnet-biotitivuorite at 345-346 



description of former lake in 565-566 



Brimfield station, section at 566 



Brown. M. A., mineralogic work of 6 



Brookite, occurrence of 131 



Buckland lake, deposits of 602-603 



C. 



Calcite, occurrence of 756 



Calcite and dolomite, pseudomorphs of 389-391 



Cambrian (Lower) gneisses 31-65 



Camp Meeting cutting, sections at 677-691, G94 



junction of clays and sands at 705 



Cerussite, occurrence of 756 



Chalcopyrite, occurrence of 131 



Chamberlain, TV. G., report on Chester emery by 133-134 



Champlain clays, description of 697-721 



junction of sands with 705-706 



atructure of 706-707 



time occupied in deposition of ^707 



action of ke on 707-709 



joints in 709-711 



concretions in 711-718 



fossils of 718-721 



Champlain period, phenomena of 562-592 



Chandler, C. F., analyses by 369 



Charleraonl, mica-schist from 162 



dikes in quartz veins in 1G9 



Chemical analyses. {See Analyses.) 



Cbester, ampbiboHteaud serpentine in 78-156 



sections at emery mine in 85,141 



history and description of emery bed in 117-147 



Savoy schist in 159, 1 60 



Chester, sericite-schist from ir>2 



dikes in 327 



Chester ampbibolite and serpentine, occurrence and 



character of 7&-156 



Chester ampbibolite series, description and correla- 

 tion of 147-155 



sedimentary origin of 155 



Cbester emery, mode of formation of 154-155 



Chester emery bed, history and description of 117-147 



Cbester Emery Company, organization and work of. 121 



Chester emery mine, association and paragenesis of 



minerals at 143-147 



Chester Granite Company, quarry stones of. 36 



Chester series, extent and character of 149 



Chesterfield, biotite gneiss from 183 



copper mine at 1 504 



Chiastolite-schist 209-2 10 



Chicopeo shale, occurrence and character of 370 



Cblorite-scbist, dikes and quartz veins in 169 



Chloritoid, description of 129 



Clapp, O. M., mineralogic work of 7 



Clark, J. D., mineralogic work of 7 



Clark Hill quarries, Middlefield, granitoid gneiss 



from 34-36 



Clarke. John Mason, cited on character and age of 



fossils from Bernardston 259-260 



Clay and marl deposits, origin of 459-460 



Clays and till, contacts of ._ 701-703 



Claystones, analyses of 717 



Clinochlor, occurrence of 756 



Coles Brook, sections at 22, 23 



Coles Brook anticline, description of 21-24 



Coles Brook limestone, analysis of 27 



occurrence and character of 27,28 



College H ill, Am herst, 'section at 557 



Connecticut, origin of name 2 



Connecticut River, old course of 513-515,627 



terraces of 722-738 



oscillations of 733 



oxbows of 734 



deflection of 734-735 



Connecticut River lakes, description of 609-696 



Connecticut River sandstone, area of 351-354 



summary of b istory of 495-500 



Connecticut River tributaries, deflection of 735 



terraces of 730 



repulsion of 746-747 



Connecticut River Valley, general geology of 13-] 4 



general description of 9-10 



Conglomerate-gneiss, Becket 31-:i8 



Conway, mineral vein at 504 



deposits of old lake in 598-600 



Conway schists, occurrence and character of 133-201 



gneiss beds in 185 



subordinate beds in 185-199 



limestone beds in 188. 189 



ampbibolites in 189-196 



protrusion through Leyden argillite in "Wbately 196-197 



cleavage in 199-2i)0 



fossils of 200-201 



age of 204-205 



Leverett 222 



Amherst 222-225 



Cook, Helen P., analyses by 84 



Copper ores, Hawley schist 171 



Cordierite, figured 208 



