1911 January 13 meeting of the Royal Astronomical Society

1911 January 18 meeting of the Royal Meteorological Society

1911 June 14 meeting of the Royal Meteorological Society

1911 June 9 meeting of the Royal Astronomical Society

1911 March 10 meeting of the Royal Astronomical Society

1911 March 15 meeting of the Royal Meteorological Society

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 MT

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