Excerpt from Raindrops and ErosionFigure 1. - Man has had little to do with the natural processes by which rainfall and runoff through the ages have produced the erosional landscape.Geologic erosion takes place at the leisurely pace of millenia. The. Action of wind and water, aided by freezing, thawing, solution, and gravitational creep, is the principal agency in this type of erosion.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully, any imperfections that remain are intentionally left to preserve the state of such historical works.