Excerpt from Washing of Soils and Methods of Prevention From careful measurements made of twenty-seven counties in various parts of Illinois, it has been determined that the state consists of approximately two-thirds prairie land and one-third timber land. A considerable proportion of the latter is rolling or hilly, but there is also much timber bottom land and some level timber upland. The total area of the state is square miles, or more than 36 million acres. Of this large area, 2 I u o z. Re rolling or hilly and subject to serious erosion. A large part of this land can be cultivated and cropped, but every practical means should be employed to prevent its rapid ruin by erosion. 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.