Excerpt from Memoirs of the Geological Survey of New South Wales, Palaeontology, No; 1: The Invertebrate Fauna of the Hawkesbury-Wianamatta Series (Beds Above the Productive Coal-Measures) Of New South Wales Many good natural sections of the two first subdivisions are in existence, but the third and fourth have chiefly been investigated by means of the Diamond Drill in borings made for coal. 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.