INDEX. 
Absolute chemical characters 148 
Abundance of subrangs 172 
Acquapendente 4, 45, 49 
Age of eruptions 175 
Alban Hills. See Latian District. 
Albanose : 
Analysis of 131, 135, 139, 147 
Description of 130, 132, 133, 138, 140 
Occurrence of 132, 137, 140, 161, 164 
Albanose-jugose : 
Analysis of 124, 147 
Description of 123, 125 
Occurrence of 125 
Amiatose 162, 170 
Analyses : 
Albanose 131, 135, 139, 147 
Albanose-jugose 124, 147 
Andesite 88 
Appianose 51, 147 
Augite 134 
Augite-trachyte 20, 147 
Anruncose 80, 83, 86,147 
Beemerose 47, 147 
Biotite-latite 56, 88, 147 
Biotite-vulsinite 88, 147 
Braccianose 104, 109, 113, 116, 118, 147 
Cascadose 127 
Cecilite 139 
Ciminite 63, 75, 147 
Ciminose 59, 63, 67, 72, 147 
Ciminose-auruncose 80, 83, 147 
Ciminose-monzonose 83, 147 
Fiasconose 127, 147 
Foyaite 51 
Gauteite 75 
Haflynitic leucite-tephrite 51, 147 
Janeirose-appianose 51, 147 
Jugose 124, 147 
Latite 56, 88, 147 
Leucite-basalt 135 
Leucit e-basani te 127, 147 
Leucite-phonolite 47, 147 
Leucite-tephrite . .43, 51, 72, 80, 86, 92, 97, 101, 
104, 109, 113, 116, 117, 118, 147 
Leucite-tinguaito 51 
Leucite-trachyte 36, 43, 67, 83, 92, 147 
Leucitite 109, 113, 124, 131, 135, 139, 147 
Melilitic leucitite 139, 147 
Minette 127 
Missourite 131 
Monzonose 75, 147 
Nephelite-eyenite 47, 51 
Nordmarkose-phlegrose 20, 23, 147 
Obsidian 28, 147 
Ouachitite 127 
Analyses : 
Peperino 56, 147 
Phlegrose 20, 23, 28, 147 
Procenose-pulaskose 43, 147 
Pulaskose 43, 147 
Shoshonose 88, 147 
Table of 147 
Tavolatite 51, 147 
Trachydolerite 75, 147 
Trachyte 20, 23, 28, 31, 36, 43, 59, 63, 75, 147 
Trachyte-obsidian 28, 147 
Vesurose 122 
Vesnvose-br accianose 118, 147 
Vicose 92, 97, 101, 147 
Vicose-ciminose 72, 147 
Vulsinite 31, 36, 147 
Vulsinose 31, 36, 43, 59, 75, 147 
Vulsinose-ciminose 59, 147 
Vulsinose-pulaskose 43, 147 
Andesite, analysis of 88 
Anguillara 6, 132 
Appianose : 
Analysis of 51, 147 
Description of 50, 54 
Occurrence of 53, 164 
Appian Way 51, 53 
Apulian Region 1 
Arcioni 113, 114 
Arsal monzonose: 
Analysis of 75, 147 
Description of 74, 78 
Arsal vulsinose-ciminose: 
Analysis of 59, 147 
Description of 58, 62 
Arso 8, 74, 75, 76, 77, 78, 157 
Aspenal monzonose, analysis of 75 
Astroni Volcano 31, 33, 42, 43, 44, 75, 78, 157 
Atrial braccianose : 
Analysis of 116, 147 
Description of 115, 117 
Atrio del Cavallo 8, 116 
Angite : 
Analysis of 134 
Occurrence of 157 
Augite-trachyte : 
Analysis of 20, 147 
Description of 19 
Auruncan District. .2, 7, 21, 26, 29, 33, 36, 40, 
61, 84, 88, 90, 92, 94, 110, 122, 164, 167 
Auruncose : 
Analysis of 80, 83, 86, 147 
Description of 79, 82, 84, 85, 87 
Occurrence of 81, 84, 87, 161, 165 
Average Magma 167, 174, 175, 179 
195 
