Excerpt from A Contribution to the Geology of the Pre-Cambrian Igneous Rocks of the Fox River Valley, Wisconsin The outliers vary Widely in areal extent and elevation. They indicate that the early Huronian continent had not been reduced to a base-level at the time of the deposition of the early Paleozoic formations. It is very probable that some of the outcrops, at least, rose a thousand feet above the shore line of the early Pale ozoic sea. 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.