1921 November 30 meeting of the British Astronomical Association

1921 November 4 geophysical discussion

1921 October 26 meeting of the British Astronomical Association

1921 September 7 meeting of the Royal Meteorological Society

1922 April 12 meeting of the Royal Astronomical Society

1922 April 19 meeting of the Royal Meteorological Society

1922 April 26 meeting of the British Astronomical Association

1922 December 20 meeting of the Royal Meteorological Society

1922 December 27 meeting of the British Astronomical Association

1922 December 4 geophysical discussion

1922 December 8 meeting of the Royal Astronomical Society

1922 February 10 meeting of the Royal Astronomical Society

1922 February 15 meeting of the Royal Meteorological Society

1922 February 22 meeting of the British Astronomical Association

1922 January 13 meeting of the Royal Astronomical Society

1922 January 18 meeting of the Royal Meteorological Society

1922 January 20 geophysical discussion

1922 January 25 meeting of the British Astronomical Association

1922 July 24 meeting of the Royal Meteorological Society

1922 June 21 meeting of the Royal Meteorological Society