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Excerpt from Lectures on Astronomical Theories: First, Celestial Sphere; Second, Parallax and Aberration of Light; Third, Theories of Light; Fourth, Cometary Orbits <p>The argument Which is the subject of the explanatory lec' ture about to be put before the reader, has been already published (april, 1875) as the second volume of the series of' <p>About the Publisher <p>Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com <p>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.