INDEX 



Adams, ^I. K., analyses by, 46, 49. 



Albite, 29, 41, 46, 50, 51, 54, 56, 

 62, 123; occurrence, 153. 



Allanite, 125, 126; occurrence, 153. 



Aniphibole, occurrence, 154. 



Analyses, of anorthosite, 31-33, 36; 



. dikes, 60-61; diopside, 160; gab- 

 bros, 40, 55-56, 136, 139; iron 

 ores, 100, loi, 104, 118, 119, 142, 

 143, 144- 145, 146; syenites, 45, 

 49. 



Andesine, 29. 



Anorthite, 29, 34, 41, 43, 51, 56, 57, 

 (>2, 143. 



Anorthosites, 27-44, 80, 81, 84, 94; 

 analysis, 31-33, 36; border facies, 

 ZS', intermediate gabbros later 

 than, zj; Split Rock Falls type, 

 figures, z^^ 39; distribution of, 

 85; Woolen Mill tA^pe, figure, 42; 

 faulted, figure, 76; penetrated by 

 gabbros, 126. 



Apatite, ZS, 36, 40, 47, 48, 50, 56, 

 61, 123, 130, 134, 140, 145; occur- 

 rence, 154. 



Archinacella? deformata, 70. 

 propria, 70. 



Areal distribution of formations, 

 79-88. 



Arsenopyrite, 125; occurrence, 155. 



Asaphus platycephalus, 74. 



Ashcraft brook, 18. 



Augen-gneiss, 28, 39. 



Augite, 25, 28, 41, 43, 48, 49, 5i, 

 53, 54, 60, 62, 123, 127, 129, 139, 

 142, 144. 



Bald knob, 13, 83. 

 Barber point, 65. 

 Barton brook, 62. 78. 

 Barton gneiss, 124. 



Barton hill, 94, 102, 125, 126, 127. 

 Barton hill group, 106, 116, 118-22, 



123, 128, 129. 

 Basaltic dikes, 57-62; areal distri- 

 bution, ^^-y faulted, figure, yj; 



figures, 58-59. 

 Bathyurellus minor, 70. 

 Bay State blast furnaces, 99. 

 Beaver brook, 67, 68, 71. 

 Beck, L. C, cited, 98, loi, 162. 

 Beede's, 43. 

 Beekmantown formation, 65-68, 75, 



89, 90, 91, 94, 96, 150, 151- 

 Bell, Sir Lowthian, cited, 162. 

 Bergschrunds, 17. 

 Berkey, C. P., cited, 95. 

 Bibliography, 162-65. 

 Biotite, 22, 24^ 26, 27, 30, 31, 40, 



41, 43, 47, 51, 52, 54, 123. 141, 142; 



occurrence, 155. 

 Birdseye limestone, 72. 

 Birkinbine, John, cited, 159, 162. 

 Bisilicates, 56. 

 Black river, 16, 141. 

 Black River group, 72-7Z, 9i- 

 Blake, W. P. cited, 153, 162. 

 Blueberry hill, 13. 

 Blueberry mountain, 43, Sy. 

 Bonanza-Joker ore body, 106. 

 Bond's quarry, 64. 

 Boquet river, 13, 14, 16, 18, 19, 20, 



Zy, 54, 7y, 86, 96, 135- 

 Bostonite, 74, 94. 

 Boulder clay, 93. 

 Boulders, 94. 

 Brainerd, E., cited, 65, 67, 69, 91, 



163. 

 Branch river, 13. 18, 20, 39, 59, 87. 

 Brigham, A. P., cited, 16, 163. 

 Brogger, W. C, mentioned, 32. 

 Broughton ledge, 13, 14, 18. 



