1935 November 8 meeting of the Royal Astronomical Society

1935 October 25 geophysical discussion

1936 April 24 geophysical discussion

1936 April 8 meeting of the Royal Astronomical Society

1936 December 11 meeting of the Royal Astronomical Society

1936 February 14 meeting of the Royal Astronomical Society

1936 February 28 geophysical discussion

1936 January 10 meeting of the Royal Astronomical Society

1936 January 31 geophysical discussion

1936 June 10 meeting of the Royal Astronomical Society

1936 Lugano CCD Spectrum

1936 March 13 meeting of the Royal Astronomical Society

1936 May 8 meeting of the Royal Astronomical Society

1936 November 13 meeting of the Royal Astronomical Society

1936 November 27 geophysical discussion

1936 October 30 geophysical discussion

1937 April 9 meeting of the Royal Astronomical Society

1937 December 10 meeting of the Royal Astronomical Society

1937 February 12 meeting of the Royal Astronomical Society

1937 February 26 geophysical discussion