1967 November 10 meeting of the Royal Astronomical Society

1967 Occultation Supplement -- Predictions for the United States and Canada

1967 October 13 meeting of the Royal Astronomical Society

1967 September 8 meeting of the Royal Astronomical Society

1968 April 10 meeting of the Royal Astronomical Society

1968 December 13 meeting of the Royal Astronomical Society

1968 February 9 meeting of the Royal Astronomical Society

1968 January 12 meeting of the Royal Astronomical Society

1968 March 8 meeting of the Royal Astronomical Society

1968 May 10 meeting of the Royal Astronomical Society

1968 Mehltretter CCD Spectrum

1968 November 8 meeting of the Royal Astronomical Society

1968 Occultation Supplement -- Predictions for the United States and Canada

1968 October 11 meeting of the Royal Astronomical Society

1969 - 1970 Guide to Scientific Instruments.

1969 April 11 meeting of the Royal Astronomical Society

1969 December 12 meeting of the Royal Astronomical Society

1969 February 14 meeting of the Royal Astronomical Society

1969 January 10 meeting of the Royal Astronomical Society

1969 March 14 meeting of the Royal Astronomical Society