What general conclusion may we draw in respect to the stability of the earth’s surface?
To what extent can we ascertain the geography of past epochs?
What former relations of land and water are suggested as not improbable?
SECTION IV.
How can we estimate the denudation which the igneous rocks have suffered?
How do faults indicate the denudation of the stratified rocks?
How do valleys indicate denudations?
Describe the instance in Scotland.