Vein of quartz near Monte Video. —in mica-slate. —relations of, to cleavage. —in a trap dike. —of granite, quartzose. —remarkable, in gneiss, near Valparaiso.

Veins, relations of, to concretions. —metalliferous, of the Uspallata range. —metalliferous, discussion on.

Venezuela, gneissic rocks of.

Ventana, Sierra, Pampean formation near. —quartz-rock of.

Villa Vincencio Pass.

Volcan, Rio, mouth of. —fossils of.

Volcanoes of the Cordillera. —absent, except near bodies of water. —ancient submarine, in Cordillera. —action of, in relation to changes of level. —long action of, in the Cordillera.

Wafer on elevated shells.

Waves caused by earthquakes, power of, in transporting boulders. —power of, in throwing up shells.

Weaver, Mr., on elevated shells.