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<dl><dd>Errata: 1 leaf, following the Preface</dd>
<dd>Experiments for determining the variation in the length of the seconds' pendulum. I. With detached invariable pendulums. II. With attached invariable pendulums. Latitudes of the pendulum stations. Application of the observed variation in the length of the seconds' pendulum to the determination of the figure of the earth.--Geographical notes. Longitudes of the pendulum stations.--Hydrographical notices.--Experiments for determining the variation in the intensity of terrestrial magnetism.--Atmospheric notices</dd></dl><br>Subjects: Pendulum; Geomagnetism; Ocean currents; Gravity</div>
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<dl><dd>Sabine, Edward, Sir, 1788-1883</dd>
<dd>Gilbert, Davies, 1767-1839 dte</dd></dl></div>
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