Excerpt from The Mechanical Composition of Wind Deposits, Vol. 1 The great lightness of the air, when compared with water, and the comparatively high velocity of its currents will necessarily render any materials it may carry and deposit somewhat different in composition and structure from those which are laid down in water. They are as a rule finer, they exhibit a different bedding and are more capriciously placed. These characteristics are familiar in a general way. It is here desired to present more exact information on this subject, particularly as to the mechanical composition of these deposits; and to show how this changes under varying circumstances of deposition. It is hoped that this may lead to a more certain identification of wind sediments, wherever the may be found. The inquiry seems to be of special importance in connection with the study of superficial deposits. Samples of different kinds of materials moved by the wind have been collected from different places of desposition and from the atmosphere directly for this study. 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.