Excerpt from Rates of Runoff for the Design of Conservation Structures in the Upper Mississippi Valley Upland Loessial Areas The Carrington soils are derived from friable glacial till. They have dark-colored surface layers like the Tama and Dodgeville soils and are deep and moderately per meable. Within this area records of runoff available as a basis for design of conser vation structures and practices on small drainage. Basins are limited to those obtained by the Soil Conservation Service at La Crosse and Fennimore, Wis., and the Ralston Creek cooperative project of the State University of Iowa, Department of Agriculture, and the United States Geological Survey. Records obtained from these studies include. 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.