Heliographic Positions of Sun-Spots

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Excerpt from Heliographic Positions of Sun-Spots: Observed at Hamilton College, From 1860 to 1870 I It seem that it would have been more expeditious to me addition and subtraction logarithms and employ the first and third of the funda mental formulae, solving (l - Lo) by the tangent only when necessary. 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.