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Adams, Mass., exposures of gneiss near 84 



Amphibolites, areas and character of 65-66 



A ni hoiiys creek, exposures on 84 



Ausweichungst divage of Heim 139 



Bald mountain, figured specimen of schist from. ... 144 



Baltzer, A., cited 143 



l 'Bellowspipe," location of 160 



Bellowspipo limestone, thickness of - 20 



age and character of 180, 184-186 



Berkshire schist, exposures of 98 



syncliue of, in Cheshire 15, 16 



thickness of 20 



age and character of 179, 182-184 



Berkshire valley described 6 



Bowens creek, section on 85 



Burlingames hill, exposures at 85 



" Buttress," location and structure of 22 



exposures of gneiss at 83 



Cadell, II. M., cited 179 



Cambrian quartzite correlated with Hoosac eonglom 



crate 28. 29 



Cambrian and pre-Cainbrian rocks not easily distin- 



guished 25 



( 'ambrian rocks, varying character of 31 



( Cheshire, schist and limestone in 16 



ideal section near 17 



Cheshire bills, transition from limestone to schist at 



south end of 16, 17 



Chester amphibolites, geologic place of 30 



Clarksburg mountain, structure of 8-9, 10,27,176 



rocks of 26, 27 



exposures at - 99 



' Ileal age, list of works on 137, 138 



nature of, Mount Greylock 158 



Cleavage and stratification foliations, relations of. - 136-137, 

 139, 140, 141, 144-155, 155-157, 161, 173 



Connecticut valley described 6 



Com* ay schist, place of 30 



( look, George H., cited 157 



Correlation of Green mountain rocks 9,35 



Hah', T. Nelson, work of xiv, 12, 19-20 



paper on Mount Greylock by 119-203 



cited 191 



Dalton, exposures in 96 



Dalton-TVindsor hills, structure of 16 



Dana, J. B., cited 9. 50, 107, 



131, 132, 155, 157, 159, 163, 169, 182, 188, 189, 190, 193 



Darwin, C, cited 143 



Deer hill, location of 135 



Dewey, Chester, cited 131, 163, 181, 198 



Dry brook, exposures near 91,93,94,96,98 



East mountain, specimen of limestone from 142 



tigured specimen of schist from 146 



Eaton, A iiios, cited 131 



Emerson, B. K., work of 10, 26, 30 



Emmons, E., cited 14, M7, 131, 



132. 159, 163, 164, 181, 184, 185, 190, 197. 198, 199 



Favre, Alphonse, cited 179 



Feldspar, analysis of 187 



Formations, table of 190 



Geology and topography, relations of 192-196 



Greylock schist, thickness of 20 



age and character of 180, 186 



Greylock and Hoosac rocks correlated 13-20 



Hall, James, cited 108, 132.159,190 



Hawes, G. W., cited 67 



Heim, A., cited 106,139 



Hitchcock, C. H , cited 7,58,100,107 



Hitchcock, E„ cited 67,107.131, 



132, 159, 164, 181, 182, 183, 184, 199 



Hobbs, W. H., work of xvi, 131 



aid by 12 



cited ISO 



Boosac conglomerate correlated with Cambrian 



quartzite 28,29 



Hoosac mountain, structure of 8, 20, 21, 80, 104-106 



rocks of 26,44-69,102 



report of J. E. Wolff on 35-118 



general topography of .- 41-44 



Hoosac tunnel, geologic value of 8 



described 8,9,42,69-72 



Hoosac sehist, exposures of, in tunnel 23, 69, 72 



described ^ 



exposures of 72, SO, 81, 82, 87, 88 



Hoosac schist and Stockbridge limestone, .one of 



lateral transition between 15,17 



Hoosac and Greylock rocks correlated 13-20 



Hoosic river, exposures on 87 



Hoosic valley schist 97-98 



"Hopper," location of 134 



Hunt, T. Sterry, cited 108 



Irving and Van Hise, cited 201 



Jukes, J. B., cited 143 



Lachines creek, contact of Stockbridge limestone 



and Cambrian quartzite ou 12 



Logan, W. E., cited . 7 



Marcou, Jules, cited 191 



Metamorphism, phases of 32, 33, 34 



Mount. Greylock, structure of 21, 125-127, 177-1 79 



struct nre of rocks of 102, 127-128, 136-155, 181 



paper by T. Nelson Dale on 119-203 



description of 125,133-136 



a real geology of 128 



relations of geology to topography on 128,129 



figured specimens of schist from 145, 147 



pitch of folds of 175 



table of formation s of 190 



Mount Prospect (Symonds peak), location of 134,135 



figured specimens of schist from 144, 145 



structure of 162-163 



New Ashford, geology of area near 202-203 



North Adams, exposures at 87-88, 98 



205 



