Excerpt from The Sand Plains of Glacial Lake Sudbury Conditions of Drainage along the Front of the Retreating ice-sheet. When the ice-sheet melted. Back over New England, uncovering a land surface of gentle irregularity, the country along its front must'have met with temporary conditions of drainage quite unlike those of the present day. The we must have blocked the courses of many streams, turning them one side or damming them up to form temporary lakes. The melting of the ice itself doubtless contributed in a measure to the volume of the streams in front of it, although the rate of melting may have been so slow that there was only a moderate flooding of the streams. 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.