1933 February 15 meeting of the Royal Meteorological Society

1933 February 22 meeting of the British Astronomical Association

1933 February 24 geophysical discussion

1933 January 13 meeting of the Royal Astronomical Society

1933 January 18 meeting of the Royal Meteorological Society

1933 January 25 geophysical discussion

1933 January 25 meeting of the British Astronomical Association

1933 June 21 meeting of the Royal Meteorological Society

1933 June 28 meeting of the British Astronomical Association

1933 June 9 meeting of the Royal Astronomical Society

1933 March 10 meeting of the Royal Astronomical Society

1933 March 15 meeting of the Royal Meteorological Society

1933 March 29 meeting of the British Astronomical Association

1933 March 31 geophysical discussion

1933 May 12 meeting of the Royal Astronomical Society

1933 May 17 meeting of the Royal Meteorological Society

1933 May 31 meeting of the British Astronomical Association

1933 November 10 meeting of the Royal Astronomical Society

1933 November 24 geophysical discussion

1933 November 29 meeting of the British Astronomical Association