INDEX 



165 



Gill, A. C, acknowledgments to, 

 75\ 



Glacial boulder on Palisades, illus. 

 facing p. 16. 



Glacial deposits, of Hamilton 

 county, 142 3 , 142 8 , 143 3 , 152 7 , 157 6 ; 

 of Warren county, 158 9 , 161 8 . 



Glacial sands of Hamilton county, 

 156 8 . 



Gneisses of Adirondacks, age, 90 2 - 

 92 2 , 94 4 , 134 5 , 134 9 ; all parts not 

 of same age, 134 4 ; of Alexandria 

 Bay, 134 5 ; amphibolite, HO 2 , 

 114 8 , 115 3 , 115 8 , 116 1 , 116 3 , 125 6 ; con- 

 tact with granite, illus. facing p. 

 116; anorthosites changed to, 101 5 ; 

 augen, 103 1 , 143 2 ; augite syenite, 

 108 8 , 114 8 , 135 4 , 142 8 , 159 7 , 161 6 ; 

 boulders, 143 3 , 152 7 ; chief rock of 

 Adirondacks, 133 8 ; doubtful, 94 4 , 

 95 4 -99 4 ; of Franklin county, 78 8 , 

 89 5 -92 2 , 93 4 . 94 2 . 95 4 -99 4 , 101 5 , 103 1 , 

 104 3 , 108 e , HO 2 , 114 6 , 115 3 -16 2 , 116 8 , 

 125 8 , 127 7 , 135 6 ; gabbroic, 94 2 , 94 4 , 

 104 3 ; granitic, 94 4 , 96 7 -97°, illus. 

 facing p. 78; graphitic, 110 5 ; 

 of Hamilton county, 142\ 

 142 8 , 143 3 . 144 2 , 150 7 , 152 7 , 

 154 3 -55 2 , 155 6 , 157 3 ; hornblendic, 

 94 1 , 98 7 -99 4 , 134 2 , 134 7 , 144 6 , 152 9 , 

 154 4 , 157 3 ; igneous, 89 8 , 94 4 , 95 9 - 

 96 7 , 132 4 , 134 8 ; intrusive rocks, 

 93 4 , 116 2 ; gneisses and lime- 

 stones, time relations, 134 9 -35 3 ; 

 represented on Geologic map, 

 132 4 , 135 4 ; origin, 89 6 , 90 8 -92 2 , 94 4 , 

 95 e -96 7 , 132 4 , 134 3 , 134 8 , 159 1 ; ortho- 

 clase, 78 s , 90 2 , 99 4 , 116\ 116 8 , 125 7 ; 

 orthoclase-quartz, 96 7 -97 9 ; peb- 

 bles. 150 7 ; plagioclase-hornblende- 

 augite, 115 5 ; pyroxene. 98 1 - 

 99 4 , pyrrhotite, 155 6 ; quartzose, 

 93 6 , 127 7 , 159 6 ; red granitoid, 134 s ; 

 schistose, 160 7 ; metamorphosed 

 sedimentary masses, 89 9 , 154 6 , 

 159 1 ; syenitic, 94 4 , 135 5 , 144 B , illus. 



facing p. 108; of Warren county, 

 158 7 , 158 9 -60 5 , 160 7 , 161 5 ; of Wash- 

 ington county, 162 4 . 



Gneisses of Canada, 89 9 , 90 7 . 



Granite, in Franklin county, 95 7 , 

 99' 106 3 , 108 3 , 114 9 -17 4 , 126 9 ; of 

 Hamilton county, 144 4 , 154 4 , 154 8 ; 

 contact with amphibolite gneiss, 

 illus. facing p. 116; hornblendic, 

 154 4 ,154 s ; represented on Geologic 

 map, 132 9 ; pyroxene, 154 6 . 



Granitic gneisses, 94 4 , 96 7 -97 D ; illus. 

 facing p. 78. 



Granitoid gneiss, 134 3 . 



Granophyr, 100 6 . 



Granulites, 98 ] -99 4 . 



Graphites, 92 9 , 93 6 , 93 s , 145 2 , 155 8 , 

 155 5 , 155 9 , 160 8 . 



Graphitic gneisses, HO 5 . 



Great Chazy river, 88 7 -89 4 . 



Grenville series, 89 9 -90 1 , 91 1 , 92 2 -95 4 ; 

 illus. facing p. 94. 



Gypsum quarry, 67 4 . 



Hall, C. E., cited, 124 7 . 



Hall, James, death, 7 3 ; memorial, 



T; cited, 68 3 , 146 5 . 

 Hamilton county, geology, 5 6 , 137- 



G2; crystalline rocks, 131 5 , 133 4 . 

 Ha)n : lton group, exposures, 56 4 , 63 2 , 



72 3 . 

 Haplite, 154 7 . 

 Helderberg limestones, thickness, 



65 s . 

 Helderberg plateau, sections of for- 

 mations along northern end, 7 2 , 



51-72. 

 Helderbergs, illus. facing p. 53, 54, 



60. 

 Herkimer county, crystalline rocks, 



131 5 , 133 4 . 

 High Tor, illus. facing p. 10, 26. 

 Hill, B. F., Preliminary report on 



the geology of Hamilton, Warren 



and Washington counties, 137-62. 



