TABLE OF CONTENTS. 



Ireland 



Scotland 



Valley of the Rhine 



Switzerland 



France 



Scandinavia 



3. Terraced Island in the East Indian Archipelago 



Other forms of surface geology 



1. Sea-bottoms . 



2. Submarine ridges 



3. Osars . . . 



4. Deltas and dunes 



5. Changes in the beds of rivers 



1. On Connecticut river 



2. In Orange, New Hampshire 



3. In Cavendish, Vermont . 



4. On Deerfield river 



5. On Agawam river 



Results or conclusions from the facts 



Origin of the drift 



1. Glaciers 



2. Icebergs 



3. Mountain slides 



4. Waves of translation 



5. Ice floods 



Table of heights of river terraces and ancient beaches 



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PART II. 



ON THE EROSIONS OF THE EARTH'S SURFACE, ESPECIALLY BY RIVERS. 



General remarks 



Agents of erosion 



1. Atmospheric air 



2. Water 



Conjoined results of these agencies 



1. In the character of the present shores of the ocean 



2. In the extensive denudations of the strata by oceanic agency, when the surface 



continents sunk beneath, and emerged from, the waters 



3. Erosions by drift ........ 



4. Erosions by rivers ........ 



Marks by which river action can be distinguished from drift agency 

 Marks by which to distinguish between fluviatile and oceanic agencies 

 Modes and extent of erosion by rivers ..... 



Caution in tbe application of the preceding rules .... 



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