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Excerpt from Outline of the Method of Conducting a Trigonometrical Survey, for the Formation of Geographical and Topographical Maps and Plans: Military Reconnaissance, Levelling, Etc.; With the Most Useful Problems in Geodesy and Practical Astronomy, and Formulae and Tables for Facilitating Their Calculation By an Altitude of the Sun, or a Star, out of the Meridian. The correct time of Observation being known. By two observed Altitude. Of the Sun or a Star, and the interval of time between them; or the diference, or sum of their Azimuths. 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.