Excerpt from Tides and Currents in Boston Harbor Through a cooperative arrangement with the Bureau of Lighthouses hourly current Observations were taken on the Boston Light Vessel during two periods - from September 22 to December 26, 1913, and from June 8, 1926, to June 30, 1927. The general characteristics of tides and tidal currents, which were discussed in Special Publication N o. 111, are reprinted in the appen l of the present volume for convenience of reference. 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.