Vill 
Cuap. XV. On the vicinity of Nassau Bay, Tierra del Fuego, 
Cuap. XVJ. On the vicinity of Rio Negro, 
Crap. XVIT. On Oregon and Northern California, 
AppEenpix I,—1. Fossils of New South Wales, 
2. Fossils of Tierra del Fuego and Peru, 
Aprenpix II. 
INDEX, 
CONTENTS. 
2. Secondary Rocks of San Lorenzo, 
3. Rotation by an Earthquake, - 
1. General Features, - 
2. Geological Structure, 
Granitic and Associated Rocks, 
Older Sedimentary Rocks, 
Basalt and other recent Igneous Rocks, 
Tertiary Formation, 
River Terraces and Beach Formations, - 
Causes of Features, and Changes in Elevation, 
Fiords, evidence of Change of Level, 
3. Fossils of Oregon, 
