INDEX 



Abner brook fault. 54 



Altitudes, 7-8 



Alvord, gabbro, 28 



Amsterdam limestone, 2;] 



Anorthosite gabbro, 8, 13-14 



Arietta lake, 68 



Auger flats, granite porphyry, 26 



Benson, 7 ; diabase, 31 ; mixed gneiss, 



27 

 Benson Center, 7; Grenville series, 



12; mixed gneiss, 2r] 

 Benson Center lake, 69 

 Black River limestone, 8, zi, 43 

 Blackbridge, gabbro, 29 

 Blue Ridge-Three Ponds mountain 



fault, 54, 55 

 Buck pond, 70; syenite, 22 

 Buck pond ridge fault, 52, 56 

 Building stone, 71 

 Burnham mountain fault, 50 



Calymmene senaria, 41 

 Cambro-Ordovicic, strata, concealed, 



41 

 Canajoharie (Trenton) shale, 8, ZZ^ 



40, y2\ at Wells, 45 

 Cathead mountain, 8; fault, 48; 



mixed gneiss, 27; syenite, 15 

 Cenozoic history, 60 

 Charley lake fault, 49 

 Chub mountain fault, 53 

 Climacograptus putillus, 41 

 Colombe brook, Grenville series, 13; 



mixed gneiss, 27; syenite, 15 

 Colombe brook-Cathead mountain 



fault, 48 

 Gushing, H. P., cited, 11, 14, 17, 21, 



37,45 



Dalmanella testudinaria, 39, 41 

 Darton, W. H., cited, 9, 2)2> 

 Devorse creek, fault, 46; granite, 26 

 Dewey creek, fault, 49; granite por- 

 phyry, 26 

 Diabase, 8, 30-31 ; examples of, 31 



Diplograptus amplexicaulis, 41 



Drainage, 61-63 



Dunham mountain, Grenville series, 



13 



Dunning pond granite, 24 



Echo lake, granite porphyry, 26 ; 



Grenville series, 12 

 Elbow creek, fault, 50, 55 ; syenite, 



15 

 Elbow mountain fault, 55 ; granite 



porphyry, 26; Grenville series, 13 

 Elbow-Three Ponds mountain fault, 



46 

 Emmons, E., cited, 9, 32, 41 

 Erratics, 65 



Fault ridges and troughs, 55 

 Faults, 9, 45-57; Abner brook, 54: 

 Blue Ridge-Three Ponds moun- 

 tain, 54, 55 ; Buck Pond ridge, 52, 

 56; Elbow mountain, 55; Finch 

 mountain, 55; Fish mountain, 55; 

 Fish-Oxbow mountain, 50; Gil- 

 mantown, 50; Grant-Woods lake, 

 54; Groff-Little Cathead moun- 

 tain ridge, 56; Hamilton lake, 51; 

 Hope outlier, 48; Indian Head 

 mountain, 55, 56; joining of, 56; 

 Lake Pleasant, 50; Moose creek, 

 52, 53 ; Moose-Xorth Branch 

 mountain, 56; Mount Dunham, 50. 

 55 ; Mount Orrey-Dunham ridge, 

 55 ; Mount Rouge, 55 ; Ninemile 

 creek, 53, 55 ; North Branch 

 Moose mountain, 53; Piseco lake, 

 51 ; Sacandaga lake, 50; Silver lake 

 outlet, 53 ; Speculator-Hamilton 

 mountain, 49; Speculator moun- 

 tain, 55; Speculator village. 51; 

 Sugar loaf-Silver lake mountain, 

 53; Swart mountain, 52; topo- 

 graphic influence and rock charac- 

 ter, 60; Wells outlier, 46; White- 

 house, 52, 53; Whitman mountain, 

 54 



[7.^1 



