1880 March 12 meeting of the Royal Astronomical Society

1880 May 14 meeting of the Royal Astronomical Society

1880 November 12 meeting of the Royal Astronomical Society

1881 April 1 meeting of the Royal Astronomical Society

1881 April 8 meeting of the Royal Astronomical Society

1881 December 9 meeting of the Royal Astronomical Society

1881 February 11 meeting of the Royal Astronomical Society

1881 January 14 meeting of the Royal Astronomical Society

1881 June 10 meeting of the Royal Astronomical Society

1881 March 11 meeting of the Royal Astronomical Society

1881 May 13 meeting of the Royal Astronomical Society

1881 November 11 meeting of the Royal Astronomical Society

1882 April 14 meeting of the Royal Astronomical Society

1882 December 8 meeting of the Royal Astronomical Society

1882 February 10 meeting of the Royal Astronomical Society

1882 January 13 meeting of the Royal Astronomical Society

1882 June 9 meeting of the Royal Astronomical Society

1882 March 10 meeting of the Royal Astronomical Society

1882 May 12 meeting of the Royal Astronomical Society

1882 November 10 meeting of the Royal Astronomical Society