INDEX. 
197 
Gradoli 45 
Grads, use of, discussed 14 
Granatello 120 
Grignano 35, 36, 38, 39, 92 
Grotta Ferrata 114, 132, 140 
Halite, use of, in the norm 15 
Harzose : 
Analysis of 56, 147 
Description of 54, 58 
Occurrence of 57, 162 
Haaynitic leucite-tephrite 51 
Hernical braccianose : 
Analysis of 113, 147 
Description of Ill, 115 
Hernican District.. .2, 7, 112, 113, 114, 129, 
135, 137, 164, 167 
Highwood Mountains 75, 127, 131 
Homologous types 142 
Hornblende, rarity of 159 
Ischia 8, 19, 20, 21, 26, 27, 28, 29, 75, 78, 165 
Ischial nordmarkose-phlegrose : 
Analysis of 20, 147 
Description of 19, 21 
Janeirose-appianose : 
Analysis of 51, 147 
Description of 50, 54 
Jugose : 
Analysis of 124, 147 
Description of 123, 125 
Occurrence of 125, 161, 165 
Lagosello 94, 122 
LakeBolsena 3, 99, 102, 110, 122, 131. 132, 161 
Lake Bracciano .. .6, 47, 49, 94, 109, 110, 132, 137, 163 
Lake Mezzano 4 
Lake Vico 5, 70, 75, 78 
L'Arso 8,74,75,76,77, 78 
La Scala 118,120 
Latera Volcano 4, 45, 49, 161 
Latian District.. .2, 6, 51, 53, 110, 112, 113, 
114, 132, 139, 140, 164, 167 
Latite : 
Analysis of 56, 88, 147 
Description of 54, 88 
Leucite, formation of 181 
Leucite-basanite : 
Analysis of 127, 147 
Description of 126 
Leucite-phonolite : 
Analysis of 47, 83, 147 
Description of 46, 49 
Use of term 13 
Leucite-tephrite : 
Analysis of.. 43, 51, 72, 80, 87, 92, 97, 101, 
104, 107, 113, 116, 147 
Description of... 50, 54, 71, 79, 86, 92, 96, 
100, 103, 115 
Leucite-tinguaite, analysis of 51 
Leucite-trachyte : 
Analysis of .' 36, 43, 67, 83, 92, 147 
Description of 34, 40, 41, 67, 82 
Leucitite : 
Analysis of.... 109, 113, 122, 124, 181, 135, 138, 147 
Description of 108, 111, 121, 123, 130, 133 
Madonna della Quercia 65 
Madonna del Riposo 97. 99 
Madonna d'Oro 114, 140 
Magma, average 167, 174, 175, 179 
Magmas, distribution of 166, 172 
Marecocco 19, 20, 21 
Martinal vicose-ciminose : 
Analysis of 72, 147 
Description of 71, 73 
Melilitic leucitite, analysis of 139, 147 
Methods of analysis 10 
Minor constituents, determination of 18, 60 
Missoural albanose 130 
Missourite, analysis of 131 
Mode, relation of norm to 154 
Moufinal shoshonose: 
Analysis of 88, 147 
Description of 88, 90 
Montana 51, 75, 127, 131, 169, 177 
Monte Amiata 1, 158, 162 
Monte Bisenzo 45, 99, 102 
Monte Calveglia 45 
Monte Calvario 1, 6 
Monte Catini 1 
Monte Cavallo 101, 102 
Monte Cavo 6, 132 
Monte Ciliano 57, 65 
Monte Cimino 5,24,57,63, 65 
Monte diCuma 23,24,26, 29 
Monte di Procida 26, 27, 29 
Monteflascone 4, 114, 124, 125, 127, 128, 140 
Monte Fogliano 5, 92, 94 
Monte Jugo 124, 125 
Monte Levo 49 
Monte Nuovo 23, 24, 26 
Monte Pallanzana 61 
Monte Rado 131, 132, 137 
Monte Raschio 121 
Monte Rotaro 8, 21, 26, 27, 28, 29 
Monte San Antonio 36, 92 
Monte Santa Croce 7, 88, 90, 165 
Monte San Vito 1, 6 
Monte Somma 8, 105, 107, 116, 144, 165 
Monte Tabor 8, 26 
Monte Valentino 61 
Monte Venere 5, 6, 7, 69, 70, 163 
Monte Vico 5, 23, 24, 25, 26, 36, 39, 41, 59, 61 
Monte Vulture 1 
Mount Vesuvius 8, 104, 105, 107, 116, 165 
Monzonose : 
Analysis of 75, 147 
Description of 74, 78 
Occurrence of 78, 163, 165 
Necrolite 57 
Nephelite-syenite, analysis of 47, 51 
Nordmarkose-phlegrose : 
Analysis of 20, 23, 147 
Description of 19, 21, 22 
Occurrence of 21, 26 
