Excerpt from The Physical Geology of the Dee Valley Aberdeen Natural History and Antiquarian Society have embodied valuable contributions to a fuller knowledge of the Natural History and Antiquities of the adjoining districts, and it has been an ambition of the Society to publish these contributions as soon as financial circumstances would permit. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This 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.