1923 January 17 meeting of the Royal Meteorological Society

1923 January 31 meeting of the British Astronomical Association

1923 June 1 geophysical discussion

1923 June 20 meeting of the Royal Meteorological Society

1923 June 27 meeting of the British Astronomical Association

1923 June 8 meeting of the Royal Astronomical Society

1923 March 21 meeting of the Royal Meteorological Society

1923 March 28 meeting of the British Astronomical Association

1923 March 5 geophysical discussion

1923 March 9 meeting of the Royal Astronomical Society

1923 May 11 meeting of the Royal Astronomical Society

1923 May 16 meeting of the Royal Meteorological Society

1923 May 30 meeting of the British Astronomical Association

1923 May 4 geophysical discussion

1923 November 21 meeting of the Royal Meteorological Society

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