Astronomical Observations

Vols. for 1841-1914 include Rates of box and pocket chronometers on trial for purchase by the Board of Admiralty (varies slightly); 1888-1914 include Rates of chronometer watches on trial for purchase by the Board of Admiralty (varies slightly); 1838, 1845- include Reports of the Astronomer Royal to the Board of Visitors (these titles also issued separately).