Observations Made With the Cookson Floating Zenith Telescope in the Years 1911-1918 at the Royal Observatory, Greenwich, for the Determination of the Variation of Latitude and the Constant of Aberration

Observations Made With the Cookson Floating Zenith Telescope in the Years 1911-1918 at the Royal Observatory, Greenwich, for the Determination of the Variation of Latitude and the Constant of Aberration