1919 January 29 meeting of the British Astronomical Association

1919 July 11 meeting of the Royal Astronomical Society

1919 June 13 meeting of the Royal Astronomical Society

1919 June 18 meeting of the Royal Meteorological Society

1919 June 25 meeting of the British Astronomical Association

1919 March 14 meeting of the Royal Astronomical Society

1919 March 19 meeting of the Royal Meteorological Society

1919 March 30 meeting of the British Astronomical Association

1919 May 21 meeting of the Royal Meteorological Society

1919 May 28 meeting of the British Astronomical Association

1919 May 9 meeting of the Royal Astronomical Society

1919 November 14 meeting of the Royal Astronomical Society

1919 November 26 meeting of the British Astronomical Association

1919 November 7 geophysical discussion

1919 November 7 meeting of the Royal Meteorological Society

1919 October 29 meeting of the British Astronomical Association

192 Nausikaa Average CCD Spectrum

1920 April 21 meeting of the Royal Meteorological Society

1920 April 28 meeting of the British Astronomical Association

1920 April 9 meeting of the Royal Astronomical Society