INDEX 



Acknowledgments, 7. 



Adirondack iron ores, classification, 



5- 



Adirondacks, sketch of the geog- 

 raphy and topography, 8-22. 



Albite, found in syenites, 63 ; 

 gneisses, 109. 



Altona, forge, 106. 



American Steel & Wire Co., 44. 



Amphibole, 13, 46. 



Amphibolites, 14, 15, 17, 27; Mine- 

 ville-Port Henry group, 62; Ar- 

 nold hill and Palmer hill group, 

 92. 



Analyses, Arnold mine, 98; augite 

 syenite, 64; Baker opening, 38; 

 Battie mine, 105 ; Benson mines, 

 *35 - 37; Bowen & Signor mine, 

 127; Cheever mine, 71; Clifton 

 mines, 140-41 ; Cook mine, 104 ; 

 Crag Harbor ore body, 69; Dills 

 & Lavake and Rutgers pits, 103 ; 

 Finch and Chalifou pits, 99; Fine 

 mines, 139; Hammondville mines, 

 S3 _ 54; igneous rocks, 29; Indian 

 mine, 99; Jayville ore, 138; Lake 

 Sanford ores, 152, 154, 158, 163; 

 Lee mine, 69; Little pond mine, 

 168; Lyon Mountain mines, 116, 

 120-22; Mineville group, 82; Mt 

 Hope mine, 39; Nelson Bush 

 mine, 96; Old Bed ore, 82; Palmer 

 "hill mines, 102 ; Parish ore body, 

 142 ; Parkhurst mine, 123 ; Port 

 Leyden mine, 168-69; Potter mine, 

 38; Salisbury mine, 145; Skiff 

 mine, 55 ; Split Rock mine, 166 ; 

 titaniferous magnetites, 147-48; 

 Tremblay mine, 128; Tunnel 

 mountain ores, 170; Vineyard 

 mine, 41. 



Anorthosite, 9, 16-17, 147, 150; anal- 

 ysis, 148; Arnold hill and Palmer 

 hill group, 91 ; Hammondville 

 mine group, 44, 45, 46, 48; Lake 



Sanford deposits, 157, 158, 163; 

 Mineville-Port Henry group, 67; 

 Moose mountain, 164; Split Rock 

 mine, 165. 



Apatite, found in gneiss, 45, 109; 

 granite, 47; schists, in; syenites, 

 63, 93; magnetites, 25, 32, 66, 82, 

 96, 98, 103, 104, 114, 132, 135, 136, 

 145, 152, 161, 163, 167. 



Arch pit, Barton hill mines, 84. 



Arnold hill deposits, 16, 22, 24-26, 

 90-105; concentrating plants, 34; 

 igneous group, 28; syenite, 93; 

 statistics of ore production, 35, 

 100. 



Arnold mine, 96-98. 



Arnold Mining Co., 94. 



Arnold, Stickney & Howe, 94. 



Augite, found in anorthosites, 17, 

 67, 158; gabbros, 17, 62, 165; 

 gneisses, 27, 30, 91, 92, 95, 103, 

 109, no, 115, 124, 144; granites, 

 18, 28, 112; hematite* 43; mag- 

 netites, 32, 101, 113, 116, 145, 161, 

 169; pegmatite, 114; schists, in; 

 syenites, 18, 28, 29, 46, 63, 65, 66, 

 93, 109, 143, 164. 



Ausable Forks, 93 ; forge, 100. 



Averill mine, 125-26. 



Averill peak, 108. 



Ayers pit, 51. 



Bachman, F. E., acknowledgments 



to. 154. 

 Baker opening, 38. 

 Bakers Mills, anorthosite, 17. 

 Bald Peak, 59. 



Ball, Clinton M., cited, 171. 

 Barton gneiss, 64. 

 Barton hill, gabbro, 31; mines, 66, 



72, 84-88. 

 Battie mine, 90, 104-5. 

 Bay State, blast furnaces, 58. 

 Beck, L. C, cited, 58, 69, 171. 

 Beekmantown formation, 19. 



173 



