94 



NEW YORK STATE MUSEUM 



Dannemora, 79, 80 



Devonian sea, 49 



Diabase, 43 



Dike rocks, 9 



Dix mountain, 21 



Dolomitic limestone, 46 



Drainage, 23; evolution of, s6\ 



changes due to glaciation, 66 

 Drumlin, 62 

 Dun Brook mountain, 21 



Eagle lake, 26, 70 

 Earthquakes, 10 

 East Branch Sacandaga, 2s 

 East Canada creek, 24 

 Echinoderms, 48 

 Eighth lake, 70 



Emmons, Dr Ebenezer, cited, 8, 16 

 Erosion, 11 

 Erratics, 62 

 Eskers, 62, /2 



Essex county, 20, 21, 29, ^7, z[6, 62, 

 78, 79 



Faults, 10; of the southeastern Adi- 



rondacks, 51 

 Feldspar, 34, 37, 39, 42, 43. H 

 Fishing Brook mountain, 21 

 Flint, 9 

 Forests, 80-82 

 Forked lake, 26, 70, 71 

 Fossils, 48 

 Fourth lake, 29 

 Fractures, sec Faults 

 Frankfort shale, 48 

 Franklin county, 22, 37 

 Fulton chain, 26, 27, 28, 64 

 Fulton county, 62 



Gabbro, 42 



Garnet, 34, 84 



Garnet mines, 80 



Gastropods, 48 



Geography, defined, 9 



Geography of the Adirondacks, 16- 



30 

 Geologic time scale, 12 

 Geology, defined, 8 

 Giant mountain, 21 

 Glacial period, 57-73 



Glaciation, 12 



Glaciers, local mountain, 61 



Glens Falls, 24 



Gloversville, 62, 65, 68 



Gneiss, 10, 34, 40 



Gore mountain, 80 



Gothics, The, 21 



Gouverneur, 26 



Granite, 39, 40, 42, 56, 80 



Graphite, 34, 36, 85 



Graphite mines, 79 



Graphite, village of, 79 



Graptolites, 48, 49 



Grasse river, 25 



Gravel, 9 



Green marble, 80 



Grenville gneisses. S3, 85 



Grenville limestone, 60 



Grenville ocean, 31, 35 



Grenville rocks, 31-36, 40, 56, 64 



Ground moraine, 61 



G3'psum, 10 



Hamilton county, 16, 21, 22, 44, 46, 



47, 48, 66, 75 

 Hammondville, 79 

 Haystack, Mt, 21 

 Herkimer county, 75 

 Hornblende, 42, 83 

 Hudson river, 23, 68, 70, 71, 72; 



course, 24 

 Hudson valley, 23, 25, 72 

 'Human history, 74-78 

 Hurricane, 21 

 Hypersthene, 86 



Ice age, 57-73; duration, 71 



Ice erosion, 60 



Igneous rocks, 9, 10, 33, 36-40, 42. 43, 



56, 83 

 Ilmenite, 85 



Indian lake, 22, 27, 29, 64 

 Indian Lake quadrangle, 23 

 Indian Lake village, 22 

 Indian pass, 23, 63 

 Indian river, 24, 25 

 Indians, 74 

 Industries, 74 

 Iron mines, 79 

 Iron ore, 37, 43, 78 

 Iron works, 78 

 Iroquois Indians, 74 



I 



