Administrative papers relating to the Planetary Sciences Study Group, of Colin Pillinger Papers and correspondence relating to the eighth meeting of the Planetary Sciences Study Group held 8 November 1971, including an overview of 'Organic geochemistry and the life sciences in relation to planetary sciences in the UK' written by Colin Trevor Pillinger and Geoffrey Eglinton, a copy of 'Review of current work in the UK on meteoroids interplanetary matter and comets,' by AJ Meadows, and Colin Pillinger's handwritten notes for the meeting, and a meeting on 27 March 1972 on the origin of the Solar System, including a copy of 'Review of current work in the UK on the origin of the Solar System,' by AJ Meadows. Also contains a programme, correspondence and invitation relating to the exhibition held jointly by the Royal Society and the Royal Astronomical Society as part of the Copernicus quincentenary celebrations on 25 January 1973. Correspondents: Dr Colin Pillinger - University of Bristol Professor MJ O'Hara - University of Edinburgh Professor R [Raymond] Hide - Meteorological Office Mr Philip Wigley - The Royal Society 9 November 1971 - 8 February 1973