1911 March 29 meeting of the British Astronomical Association

1911 May 12 meeting of the Royal Astronomical Society

1911 May 17 meeting of the Royal Meteorological Society

1911 May 31 meeting of the British Astronomical Association

1911 November 10 meeting of the Royal Astronomical Society

1911 November 15 meeting of the Royal Meteorological Society

1911 November 29 meeting of the British Astronomical Association

1911 October 25 meeting of the British Astronomical Association

1912 April 12 meeting of the Royal Astronomical Society

1912 April 17 meeting of the Royal Meteorological Society

1912 April 24 meeting of the British Astronomical Association

1912 December 13 meeting of the Royal Astronomical Society

1912 December 18 meeting of the British Astronomical Association

1912 December 18 meeting of the Royal Meteorological Society

1912 February 21 meeting of the Royal Meteorological Society

1912 February 28 meeting of the British Astronomical Association

1912 February 9 meeting of the Royal Astronomical Society

1912 January 12 meeting of the Royal Astronomical Society

1912 January 17 meeting of the Royal Meteorological Society

1912 January 31 meeting of the British Astronomical Association