Excerpt from Elements of Astronomy It may not be irrelevant to mention, that the greater part of the substance of this volume, according to its present arrangement, has been given by the author in his annual lectures since the year 1799, as Professor, and that the first sixteen chapters have been actually in the hands of the students since 1808, having been then for the first time printed for their use. 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.