INDEX TO ROCKS. 
Absarokite 
Kbsarokose 
Acmite-trachyte 
kctinolite-magnetite-schist 
Adainellite 
Page. 
113,115,119 
115 
140 
97 
135 
Adamellose 46,62,88,110,143,147,154,179, 183 
BLdinole 81 
Adobe soil 367, 368, 369 
KEgirite-granite porphyry 190 
Akerose 22, 27, 
28, 29, 102, 137, 138, 146, 163, 166, 180, 190, 199 
Alaskase 202,207 
Alaskite 253, 269 
Alaskite porphyry 269 
Alask< >se is, 63, 71,1 20, 
121, 131, 160, 109, 185, 207, 211, 220, 232, 269, 270 
Albite 21, 11 
Albite-sehist 41 
Aleutite 253,270 
Alluvium 366 
gUmerose 276 
Alsbaehose 40, 57, 122, 178, 217, 262 
Amadorose 39, 234 
Aniiatnsc . 98, 132, 136, 179, 180, 184, 205, 206, 208, 233 
Amphibolo 132, 223, 239, 242 
Amphibole-biotite-granite 241 
Amphibole-gabbro 239 
Amphibole-picrite 242 
Amphibole-pyr< >xene rock 242 
Amphibolite 30, 34, 35, 36, 78, 230 
Amphibolitic schist 251 
Amygda loid 63 
Analcite 151, 165 
Analcite-basalt 165 
Andal usite-h ornf els 211 
Andalusite-schist 244 
Andesite 22,61,106, 107, 
113,114,123,125,136,154, L60.164, 107, 172, 
184, 188, 1 94, 195, 202, 203, 204, 206, 209, 214, 
215, 216, 221, 226, 246, 257, 258. 267, 268, 27 1 
Andesite-basalt 209 
Andesite breccia 107,183 
Andesite porphyry 136,154 
Ahdesitic perlite 205 
Andesitic tuff 216 
Andose 28,38,103, 106,108, 109,111,112,125, 
126, 135, 138, L39, 1 13, 1 16, 155, 156, 164, 172, 171, 
1M, 1S2, 1'.):;, 196,206,215,217,218,219,222,231, 
233, 234, 2 Hi, 252, 25:!, 25s, 259, 265, 2(17. 268, 27<i 
Anorthoclase 37,89, 1 10 
Anorthosite 45 
Page. 
Aplite 40, 110, 134, 154, 225, 240 
Aplitic granite 145 
Aporhyolite 48 
Argillite 228 
Arkose gneiss 37, 18 
Asperite 246 
Augite 73, 159, 165, 194 
Augite-aleutite 270 
Augite-andesite 114, 160, 271 
Augite-andesite porphyry L05, L09 
Augite-belugite 270 
Augite-biotite-andesite 204 
Augite-bronzite-andesite 207 
Augite-diorite 166, 180, 185 
Augitc-granite 231 
Augite-latite 238 
Augite-mica-syenite 159 
Augite-microcline-granite 65 
Augite-porphyri te 189 
Augite-porphyry 128 
Augite-syenite 236 
Augite-syenite porphyry Ill 
Augite-vogesite 146 
Auvergnose 42, 43, 45, 47, 48, 
59, 62, 79, 80, 82, 83, 84, 85, 95, 101 , 125, 141, 194, 
198, 199, 201, 218, 219, 2 13, 247, 251, 260, 261, 272 
B. 
Baltimoriase 50 
Baltimorose 50 
Banakite 117,11s 
Banatite 132 
Bandose 43, 
52, 53, 97, 136, 160, 2 1 5, 218, 227 , 23 1 , 268, 27 1 
Barkevikite 150 
Basalt 42, 47, 70, 72. 73, 
108, 125, 120, 127, 129, 1 10, 148, 157, 158, 159, 164, 
193, 194, 195, 199, 201, 205, 206, 209, 217, 218, 219. 
222, 224, 246, 252, 255, 258, 259, 261, 262, 265, 272 
Basanite 70, 195 
Bastite 249 
Beemerose 47 
Beerbachose 23, 80, 209, 223, 259, 201 
Belcherose 31, 52, 149 
Belugite 270 
Biotite 132 
Biotite-andesitc 204 
Biotite-augite-latite 238 
Biotite-dacite p 198,204 
Biotite-diorite 52 
Biotite-gneiss 84 
371 
