1909 July 7 meeting of the British Astronomical Association

1909 June 11 meeting of the Royal Astronomical Society

1909 June 16 meeting of the Royal Meteorological Society

1909 March 12 meeting of the Royal Astronomical Society

1909 March 17 meeting of the Royal Meteorological Society

1909 March 31 meeting of the British Astronomical Association

1909 May 14 meeting of the Royal Astronomical Society

1909 May 19 meeting of the Royal Meteorological Society

1909 May 26 meeting of the British Astronomical Association

1909 November 12 meeting of the Royal Astronomical Society

1909 November 17 meeting of the Royal Meteorological Society

1909 November 24 meeting of the British Astronomical Association

1909 November 30 meeting of the Astronomical Institution of Edinburgh

1909 October 27 meeting of the British Astronomical Association

190ismene

191 Kolga CCD Spectrum

1910 April 20 meeting of the Royal Meteorological Society

1910 April 27 meeting of the British Astronomical Association

1910 April 8 meeting of the Royal Astronomical Society

1910 April meeting of the Astronomical Institution of Edinburgh