1940 March 8 meeting of the Royal Astronomical Society

1940 May 10 meeting of the Royal Astronomical Society

1940 May 24 geophysical discussion

1940 November 8 meeting of the Royal Astronomical Society

1941 April 9 meeting of the Royal Astronomical Society

1941 July 11 meeting of the Royal Astronomical Society

1941 June 13 meeting of the Royal Astronomical Society

1941 March 14 meeting of the Royal Astronomical Society

1941 May 9 meeting of the Royal Astronomical Society

1941 October 10 meeting of the Royal Astronomical Society

1941 September 12 meeting of the Royal Astronomical Society

1942 April 10 meeting of the Royal Astronomical Society

1942 August 14 geophysical discussion

1942 July 10 meeting of the Royal Astronomical Society

1942 June 12 meeting of the Royal Astronomical Society

1942 March 13 meeting of the Royal Astronomical Society

1942 May 8 meeting of the Royal Astronomical Society

1942 October 9 meeting of the Royal Astronomical Society

1942 September 11 meeting of the Royal Astronomical Society

1943 April 9 meeting of the Royal Astronomical Society