Springs, mineral, in the Cumbre Pass.
Stratification of sandstone in metamorphic rocks. —of clay-slate in Tierra del Fuego. —of the Cordillera of Central Chile. —little disturbed in Cumbre Pass. —disturbance of, near Copiapo.
Streams of lava at S. Cruz, inclination of. —in the Portillo range.
String of cotton with fossil-shells.
Struthiolaria ornata.
Studer, M., on metamorphic rocks.
Subsidence during formation of sea-cliffs. —near Lima. —probable, during Pampean formation. —necessary for the accumulation of permanent deposits. —during the tertiary formations of Chile and Patagonia. —probable during the Neocomian formation of the Portillo Pass. —probable during the formation of conglomerate of Tenuyan. —during the Neocomian formation of the Cumbre Pass. —of the Uspallata range. —great, at Copiapo. — —during the formation of the Cordillera.
Sulphur, volcanic exhalations of.
Sumatra, promontories of.
A Summary on the recent elevatory movements. —on the Pampean formation. —on the tertiary formations of Patagonia and Chile. —on the Chilean Cordillera. —on the cretaceo-oolitic formation. —on the subsidences of the Cordillera. —on the elevation of the Cordillera.