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

1934 March 23 geophysical discussion

1934 March 28 meeting of the British Astronomical Association

1934 March 9 meeting of the Royal Astronomical Society

1934 May 11 meeting of the Royal Astronomical Society

1934 May 30 meeting of the British Astronomical Association

1934 November 23 geophysical discussion

1934 November 28 meeting of the British Astronomical Association