Correspondence relating to Apollo 12 lunar sample custody, contamination, and preparation collected by Colin Pillinger Records relating to the custody of lunar samples, a list of the sections of lunar samples with sample numbers, correspondence relating to extensions of lunar sample loans and contamination, 'General summary of botanical quarantine testing Apollo 11 and 12,' which includes a list of plant species that have been 'challenged with either Apollo 11 or 12 lunar material,' information on sample preparation including photograph and diagram of the cutting of a lunar rock. Copy of the Apollo 12-13 guidelines for Principle Investigators. Correspondents: Dr Colin Trevor Pillinger, Bristol University Dr M. B. Duke, NASA Mr Robert B. Laughon, NASA Dr Geoffrey Eglinton, University of Bristol Anthony J. Calio, NASA Gene Simmons, NASA Dr Brian Erb, NASA D. Amos, Science Research Council Dr Michael A. Reynolds, NASA Mrs Diana .J. Longland, Science Research Council Mrs Sue Sneddon, Secretary to Dr Eglinton Miss Ruth Fruland, NASA G.J. Wasserburg, California Institute of Technology Daniel H. Anderson, NASA Verl R. Wilmarth, NASA Mr John D. Lobb, NASA Harold F. Chevalier, Massachusetts Institute of Technology Professor A.A. Levinson, University of Calgary Dr James Rankin Maxwell, University of Bristol Mr H. Cage, the MIT press Miss Parker, the MIT press Dr I.A. Breger, US Geological Survey 6 February 1970 - 15 November 1971