Earthquakes in Pampas.
Earthquake-waves, power of, in throwing up shells. --effects of, near Lima. --power of, in transporting boulders.
Edmonston, Mr., on depths at which shells live at Valparaiso.
Ehrenberg, Professor, on infusoria in the Pampean formation. --on infusoria in the Patagonian formation.
Elevation of La Plata. --Brazil. --Bahia Blanca. --San Blas. --Patagonia. --Tierra del Fuego. --Falkland islands. --Pampas. --Chonos archipelago. --Chiloe. --Chile. --Valparaiso. --Coquimbo. --Guasco. --Iquique. --Cobija. --Lima. --sudden, at S. Maria. -- --at Lemus. --insensible, at Chiloe. -- --at Valparaiso. -- --at Coquimbo. --axes of, at Chiloe. -- --at P. Rumena. --at Concepcion. --unfavourable for the accumulation of permanent deposits. --lines of, parallel to cleavage and foliation. --lines of, oblique to foliation. --areas of, causing lines of elevation and cleavage. --lines of, in the Cordillera. --slow, in the Portillo range. --two periods of, in Cordillera of Central Chile. --of the Uspallata range. --two periods of, in Cumbre Pass. --horizontal, in the Cordillera of Copiapo. --axes of, coincident with volcanic orifices. --of the Cordillera, summary on.
Elliott, Captain, on human remains.
Ensenada, elevated shells of.
Entre Rios, geology of.
Equus curvidens.
Epidote in Tierra del Fuego. --in gneiss. --frequent in Chile. --in the Uspallata range. --in porphyry of Coquimbo.
Erman, M., on andesite. Escarpments, recent, of Patagonia.
Extinction of fossil mammifers.
Falkland islands, elevation of. --pebbles on coast. --geology of.
Falkner, on saline incrustations.
Faults, great, in Cordillera.
Feldspar, earthy, metamorphosis of, at Port Desire. --albitic. --crystals of, with albite. --orthitic, in conglomerate of Tenuyan. --in granite of Portillo range. --in porphyries in the Cumbre Pass.
Feuillee on sea-level at Coquimbo.
Fissures, relations of, to concretions. --upfilled, at Port Desire. --in clay-slate.
Fitton, Dr., on the geology of Tierra del Fuego.
Fitzroy, Captain, on the elevation of the Falkland islands. --on the elevation of Concepcion.
Foliation, definition of. --of rocks at Bahia. --Rio de Janeiro. --Maldonado. --Monte Video. --S. Guitru-gueyu. --Falkland I. --Tierra del Fuego. --Chonos archipelago. --Chiloe. --Concepcion. --Chile. --discussion on.
Forbes, Professor E., on cretaceous fossils of Concepcion. --on cretaceous fossils and subsidence in Cumbre Pass. --on fossils from Guasco. -- --from Coquimbo. -- --from Copiapo. --on depths at which shells live.
Formation, Pampean. -- --area of. -- --estuary origin. --tertiary of Entre Rios. --of Banda Oriental. --volcanic, in Banda Oriental. --of Patagonia. --summary on. --tertiary of Tierra del Fuego. -- --of the Chonos archipelago. -- --of Chiloe. -- --of Chile. -- --of Concepcion. -- --of Navidad. -- --of Coquimbo. -- --of Peru. -- --subsidence during. --volcanic, of Tres Montes. -- --of Chiloe. -- --old, near Maldonado. -- --with laminar structure. -- --ancient, in Tierra del Fuego. --recent, absent on S. American coast. --metamorphic, of claystone-porphyry of Patagonia. --foliation of. --plutonic, with laminar structure. --palaeozoic, of the Falkland I. --claystone, at Concepcion. --Jurassic, of Cordillera. --Neocomian, of the Portillo Pass. --volcanic, of Cumbre Pass. --gypseous, of Los Hornos. -- --of Coquimbo. -- --of Guasco. -- --of Copiapo. -- --of Iquique. --cretaceo-oolitic, of Coquimbo. -- --of Guasco. -- --of Copiapo. -- --of Iquique.
Fossils, Neocomian, of Portillo Pass. -- --of Cumbre Pass. --secondary, of Coquimbo. -- --of Guasco. -- --of Copiapo. -- --of Iquique. --palaeozoic, from the Falklands.
Fragments of hornblende-rock in gneiss. --of gneiss in gneiss.
Freyer, Lieutenant, on elevated shells of Arica.
Frezier on sea-level at Coquimbo.
Galapagos archipelago, pseudo-dikes of.
Gallegos, Port, tertiary formation of.
Garnets in gneiss.