166 



NEW YORK STATE MUSEUM 



Hope, topography and geology, 



142*-43 3 ; geologic map, facing p. 



141. 

 Hornblende, 112 9 -14 2 , 96 s , 97 8 , 100 5 , 



102 2 , 103 7 , 107 1 , 107 5 , 111 8 , 115*. 



115 5 , 142 8 , 143\ 144 5 , 154 6 , 159 5 . 

 Hornblende gabbros, 114 1 , 114 5 . 

 Hornblende gneisses, 94 1 , 98 7 -99 4 , 



134 2 , 134 7 , 144 8 , 152 9 , 154 4 , 157 3 . 

 Hornblende schist, 160 3 , 160 7 . 

 Hornblende syenites, 108 3 , 108 9 . 

 Hornfels, 35 4 , 36 5 , 36 7 , 37 7 . 

 Howe's cave, illus. facing p. 68, 70. 

 Howe's cave sections, 67 2 -72 5 . 

 Hudson river formation, exposures, 



53 4 , 57 2 , 64 4 , 67 5 . 

 Hyperite, 114 4 , 114 6 , 114 8 , 116*, 117 5 . 

 Hyperite gabbros, 115 7 . 

 Hypersthene, 98 2 , 98 5 , 98 7 , 100 5 , 101", 



102 2 , 106 3 , 107\ 107 5 , 111 2 , 111 8 , 



112 a , 112 5 , 115 8 . 



Ilmenite, 100 5 , 111 5 . 



Indian Ladder, illus. facing p. 54. 



Indian Ladder section, 53 2 -56 5 . 



Indian Lake, topography and geol- 

 ogy, 156M57 2 ; geologic map, fac- 

 ing p. 141. 



Iron mine in Washington county, 

 162 9 . 



Iron ore of Franklin county, 103 8 , 

 125 4 -26 4 . 



Iron pyrites, 66 2 , 67 7 . 



Jefferson county, crystalline rocks, 



131 6 . 

 Johnsburg, topography, 157 8 -58 7 ; 



geology, 158 7 -61 9 ; geologic map, 



facing p. 158. 



Kemp, J. F., Preliminary report 

 on the geology of Hamilton, War- 

 ren and Washington counties, 5 4 , 

 137-62; work with H. P. Cushing, 

 75 6 ; cited, 103 3 , 109 5 , 123 2 , 124 7 , 

 141 4 , 145 9 , 



Knox, section near, 60 8 -61 B . 

 Kummel, H. B., Newark or new 



red sandstone rocks of Rockland 



county, N. Y., 5 7 , 9-50. 



Labradorite, 99 9 , 101 4 , 101 5 , 101 7 , 

 103 7 , 104 1 , 104 5 , 111 2 , 111 8 , 111 8 , 

 112 2 , 115 8 , 161 1 . 



Ladentown, calcareous conglomer- 

 ate, 21 3 . 



Ladentown trap, 39 8 -42 2 . 



Lake Placid, 88 8 . 



Lake Pleasant, topography and ge- 

 ology, lSS 1 ^ 4 ; geologic map, fac- 

 ing p. 141. 



Lakes of Adirondacks, 83 1 -84 3 . 



Laurentian series, 89 9 , 91 1 . 



Lime in Franklin county, 128\ 



Limekiln, calcareous conglomerate, 

 21 1 . 



Limestones, in Ramapo mountain, 

 19 8 ; 



of Adirondacks: represented on 

 Geologic map, 132 7 ; and gneisses, 

 time relations, 134 9 -35 8 ; in Frank- 

 lin county, 92 8 -93 5 , 104 8 , HO 5 , 123 B , 

 124 1 , 124 s , 124 7 , 128 1 ; in Hamilton 

 county, 145 1 , 155 2 -56 2 , 157°; in 

 Warren county, 158 7 , 160 5 . See 

 also Grenville series. 



Limonite, 150 8 . 



Lockatong beds, 13 7 , 14 4 , 14 7 . 



Logan, Sir William, cited, 89 9 . 



Long Clove, trap rock, SOMJl 1 ; illus. 

 facing p. 10. 



Luther, D. D., investigations on 

 waterlime beds, 6 1 ; investiga- 

 tion of fossil faunas of Portage 

 rocks, 6 4 . 



Lyon mountain, mines, 125 9 . 



Magnetite, 96 8 , 107 8 , 111 2 , 111 5 , 112 3 , 

 113 4 , 114 3 , 115% 126 1 , 150 B . 



Manhattan trap rock company's 

 quarry, 27 s , 36 8 . 



Marble, 92 8 -93 2 , 145 8 . 



