A Treatise on Nautical Astronomy

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Excerpt from A Treatise on Nautical Astronomy: For the Use of Students In the preparation of this volume I have consulted every work on the subject with which I. Am acquainted, and must express my obligation to Woodhouse's Astronomy, God frey's Astronomy, Ipomis' Astronomy, Riddle's Naviga tion, and to many others for the very valuable sages tions conveyed by them. In Clearing the Lunar Distance I have introduced a method suggested by Sir G. B. Airy, the late astronomer-royal, and I here tender him my sincere thanks for his ready permission to use it in this work. I also present the reader with a method of my own for the same purpose, which has already appeared in the Monthly Notices of the Royal Astronomical Society for April, 1884. This one is independent of case, requires no special tables, and is direct in its application, and, being a very close approximation, is therefore well adapted for use at sea, especially when we consider that on a voyage all the data employed are only approximations. 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.