1923 November 28 meeting of the British Astronomical Association

1923 November 5 geophysical discussion

1923 November 9 meeting of the Royal Astronomical Society

1923 October 17 meeting of the Royal Meteorological Society

1923 October 31 meeting of the British Astronomical Association

1923 Osiris CCD Spectrum

1924 April 11 meeting of the Royal Astronomical Society

1924 April 30 meeting of the British Astronomical Association

1924 April 9 meeting of the Royal Meteorological Society

1924 December 12 meeting of the Royal Astronomical Society

1924 December 17 meeting of the Royal Meteorological Society

1924 December 31 meeting of the British Astronomical Association

1924 December 5 geophysical discussion

1924 February 15 meeting of the Royal Meteorological Society

1924 February 20 meeting of the Royal Meteorological Society

1924 February 27 meeting of the British Astronomical Association

1924 February 8 meeting of the Royal Astronomical Society

1924 January 11 meeting of the Royal Astronomical Society

1924 January 16 meeting of the Royal Meteorological Society

1924 January 3 meeting of the British Astronomical Association