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

1933 October 25 meeting of the British Astronomical Association

1933 October 27 geophysical discussion

1934 April 13 meeting of the Royal Astronomical Society

1934 April 25 meeting of the British Astronomical Association

1934 December 14 meeting of the Royal Astronomical Society

1934 February 23 geophysical discussion

1934 February 28 meeting of the British Astronomical Association

1934 February 9 meeting of the Royal Astronomical Society

1934 January 12 meeting of the Royal Astronomical Society

1934 January 26 geophysical discussion

1934 January 31 meeting of the British Astronomical Association

1934 June 27 meeting of the British Astronomical Association

1934 June 8 meeting of the Royal Astronomical Society