PAGE, Sir Frederick (William) CBE. [1978]

PAGEL, Professor Bernard Ephraim Julius.[1992] Visiting Professor of Astronomy at the University of Sussex. Astronomy Centre, Chemistry, Physics and Environmental Science, University of Sussex, Falmer, Brighton, BN1 9QH. (Tel: (01273) 606755 ext.3060; email: bejp@star.cpes.susx.ac.uk; Fax: (01273) 677196); and Groombridge, Lewes Road, Ringmer, East Sussex, BN8 5ER. (Tel: (01273) 812729)

PAIGE, Professor Edward George Sydney.[1983]

PAINTAL, Professor Autar Singh.[1981]Formerly Director, Vallabhbhai Patel Chest Institute, University of Delhi, India, and Director-General of the Indian Council of Medical Research, New Delhi. Programme Director, Centre for Visceral Mechanisms, Vallabhbhai Patel Chest Institute, University of Delhi, PO Box 2101, Delhi, India 110007. (Tel: +91(0) (11) 725-7749; Fax: +91(0) (11) 725-7856)

PALMER, Professor Andrew Clennel.[1994] Professor of Petroleum Engineering in the University of Cambridge. Department of Engineering, University of Cambridge, Trumpington Street, Cambridge, CB2 1PZ. (Tel (01223) 332718; email: acp24@eng.cam.ac.uk; Fax: (01223) 339713); and 49 Ashley Gardens, Ambrosden Avenue, London, SW1P 1QF. (Tel: (0171) 828 8843)

PARKER, Professor Geoffrey Alan.[1989] Derby Professor of Zoology in the School of Biological Sciences, University of Liverpool. Nicholson Building, School of Biological Sciences, University of Liverpool, Liverpool, L69 3BX. (Tel: (0151) 794-5018; email: gap@liv.ac.uk; Fax: (0151) 794-5094)

PARKER, Professor Robert Ladislav.[1989]

PARRY, Professor William.[1984] Emeritus Professor of Mathematics in the University of Warwick. Mathematics Institute, University of Warwick, Coventry, CV4 7AL. (Tel: (01203) 523743); and The Manor House, High Street, Marton, Rugby, Warwickshire, CV23 9RR. (Tel: (01926) 632501)

PARSONS, Professor Roger. [1980] Emeritus Professor of Chemistry in the University of Southampton. Department of Chemistry, University of Southampton, Southampton, SO17 1BJ. (Tel: (02380) 593371; email: rp3@soton.ac.uk; Fax: (02380) 676960); and 16 Thornhill Road, Bassett, Southampton, SO16 7AT. (Tel: (02380) 790143)

PARTRIDGE, Professor Linda. [1996]

PASHLEY, Professor Donald William.[1968] Emeritus Professor of Materials in the University of London. Senior Research Fellow at the Imperial College of Science, Technology and Medicine, London. Department of Materials, Imperial College, London, SW7 2AZ. (Tel: (0171) 594-6761; email: d.w.pashley@ic.ac.uk; Fax: (0171) 584-3194); and 11 The Gables, Oxshott, Leatherhead, Surrey, KT22 0SD. (Tel: (01372) 844518). Council Service: 1981-83.

PATE, Professor John Stewart.[1985]

PATEMAN, Professor John Arthur Joseph.[1978] Emeritus Professor of Genetics in the Australian National University. 1 Abberbury Road, Oxford, OX4 4ET. (Tel: (01865) 748275)

PATTENDEN, Professor Gerald.[1991] Pro-Vice-Chancellor and Sir Jesse Boot Professor of Organic Chemistry, in the University of Nottingham. School of Chemistry, University of Nottingham, Nottingham, NG7 2RD. (Tel: (0115) 951-3530; email: gp@nottingham.ac.uk; Fax: (0115) 951-3535);

PAWLEY, Professor Godfrey Stuart.[1992] Professor of Computational Physics in the University of Edinburgh. Department of Physics and Astronomy, The King's Buildings, Mayfield Road, University of Edinburgh, Edinburgh, EH9 3JZ. (Tel: (0131) 650-5300; email: g.s.pawley@ed.ac.uk); and 26 Relugas Road, Edinburgh, EH9 2ND. (Tel: (0131) 667-2122)

PAWSON, Professor Anthony James.[1994] Professor in the University of Toronto and Senior Scientist at the Samuel Lunenfeld Research Institute of Mount Sinai Hospital, Toronto, Canada. Samuel Lunenfeld Research Institute, Mount Sinai Hospital, 600 University Avenue, Toronto, Ontario, Canada, M5G 1X5. (Tel: +1 (416) 586-8262; email: pawson@mshri.on.ca; Fax: +1 (416) 586-8869); and 34 Glenwood Avenue, Toronto, Ontario, Canada, M6P 3C6. (Tel: +1 (416) 763-2266)

PAYNE, Professor David Neil.[1992] Professor of Photonics and Director of the Optoelectronics Research Centre in the University of Southampton. Optoelectronics Research Centre, Building 46, University of Southampton, Southampton, SO17 1BJ. (Tel: (01703) 593583; email: dnp@orc.soton.ac.uk; Fax: (01703) 593142). Lecture: Clifford Paterson (1991).

PEACOCK, Dr William James AC. [1982] Chief of Division, CSIRO Plant Industry. G.P.O. Box 1600, Canberra, ACT 2601, Australia. (Tel: +61(0) (2) 6246-5250; email: jim.peacock@pican.pi.csiro.au; Fax: +61(0) (2) 6246-5530); and 16 Brassey Street, Deakin, ACT 2600, Australia. (Tel: +61(0) (2) 6281-4485)

PEAKER, Professor Malcolm. [1996] Director of the Hannah Research Institute, Ayr, and Hannah Professor in the University of Glasgow. Hannah Research Institute, Ayr, KA6 5HL. (Tel: (01292) 674000; email: peakerm@hri.sari.ac.uk; Fax: (01292) 674001

PEARSE, Dr Barbara Mary Frances.[1988] Member of the Scientific Staff of the Medical Research Council Laboratory of Molecular Biology, Cambridge. MRC Laboratory of Molecular Biology, Hills Road, Cambridge, CB2 2QH. (Tel: (01223) 248011; email: bulbeck@mrc-lmb.cam.ac.uk; Fax: (01223) 412142)

PEART, Sir (William) Stanley.[1969] Emeritus Professor of Medicine at St Mary's Hospital Medical School in the University of London. 17 Highgate Close, Highgate, London, N6 4SD. (Tel (0181) 341-3111). Council Service: 1973-74, 1987-88; V.P. 1987-88.

PEASE, Dr Rendel Sebastian.[1977] Formerly Programme Director for Fusion, United Kingdom Atomic Energy Authority. UKAEA Culham Laboratory, Culham, Abingdon, Oxfordshire, OX14 3DB. (Tel: (01235) 521840; email: baspease@w-ilsley.freeserve.co.uk); and The Poplars, West Ilsley, Newbury, Berkshire, RG20 7AW. (Tel: (01635) 281237; Fax: (01635) 281688). Council Service: 1985-87; V.P. 1986-87.

PEDLEY, Professor Timothy John. [1995] G.I. Taylor Professor of Fluid Mechanics in the University of Cambridge, Department of Applied Mathematics and Theoretical Physics, Silver Street, Cambridge, CB3 9EW. (Tel: (01223) 339842; email: tjp3@damtp.cam.ac.uk; Fax: (01223) 337918); and Oakhurst Farm, 375 Shadwell Lane, Leeds, LS17 8AH. (Tel: (0113) 266-2854)

PEEBLES, Professor Phillip James Edwin.[1982] Albert Einstein Professor of Science in Princeton University, USA. Joseph Henry Laboratory, Princeton University, Princeton, NJ 08544, USA. (Tel: +1 (609) 258-4386; email: pjep@pupgg.princeton.edu; Fax: +1 (609) 258-6853); and 24 Markham Road, Princeton, NJ 08540, USA. (Tel: +1 (609) 921-3308)

PELHAM, Dr Hugh Reginald Brentnall.[1988] Member of the Scientific Staff of the Medical Research Council Laboratory of Molecular Biology, Cambridge. MRC Laboratory of Molecular Biology, Hills Road, Cambridge, CB2 2QH. (Tel: (01223) 248011; email: hp@mrc-lmb.cam.ac.uk; Fax: (01223) 412142). Lectures: Florey (1992), Croonian (1999)

PENDRY, Professor John Brian.[1984] Head of the Department of Physics and Professor of Theoretical Solid State Physics at the Imperial College of Science, Technology and Medicine in the University of London. Department of Physics, Blackett Laboratory, Imperial College, London, SW7 2BZ. (Tel: (0171) 594-7500 and 7502; email: j.pendry@ic.ac.uk; Fax: (0171) 594-7504);

PENNYCUICK, Professor Colin James.[1990]Senior Research Fellow in the University of Bristol. School of Biological Sciences, University of Bristol, Woodland Road, Bristol, BS8 1UG. (Tel: (0117) 928-9000; email: c.pennycuick@bristol.ac.uk); and 5 Windsor Court, Clifton, Bristol, BS8 4LJ. (Tel: (0117) 926-2979)

PENROSE, Professor Oliver.[1987] Emeritus Professor of Mathematics in Heriot-Watt University. Department of Mathematics, Heriot-Watt University, Riccarton, Edinburgh, EH14 4AS. (Tel: (0131) 451-3225; email: oliver@ma.hw.ac.uk; Fax: (0131) 451-3249); and 29 Frederick Street, Edinburgh, EH2 2ND. (Tel: (0131) 225-5879)

PENROSE, Sir Roger.[1972]

PEPPER, Professor Michael.[1983]Professor of Physics in the University of Cambridge. Cavendish Laboratory, Madingley Road, Cambridge, CB3 0HE (Tel: (01223) 337330; email:mp10000@cam.ac.uk; Fax: (01223) 337271); and Toshiba Research Europe, 260 Cambridge Science Park, Milton Road, Cambridge, CB4 4WE (Tel: (01223) 424666;Fax: (01223) 423686)Medal: Hughes (1987) Council Service: 1998-

PEPYS, Professor Mark Brian. [1998] Professor and Head of Medicine at the Royal Free and University College Medical School, Royal Free Campus and Honorary Consultant Physician at the Royal Free Hospital. Department of Medicine, Royal Free and University College Medical School, Royal Free Campus, Rowland Hill Street, London, NW3 2PF. (Tel: (0207) 4742 2800; email: m.pepys@rfc.ucl.ac.uk; Fax: (0207) 472 2803) and 22 Wildwood Road, London, NW11 6TE (Tel: (0208) 455 9387).

PERCIVAL, Professor Ian Colin.[1985] Research Professor of Theoretical Physics at Queen Mary and Westfield College in the University of London. Department of Physics, Queen Mary and Westfield College, Mile End Road, London, E1 4NS.

PEREIRA, Sir (Herbert) Charles.[1969] Consultant in Tropical Watershed Management. Formerly Chief Scientist, Ministry of Agriculture, Fisheries and Food. Peartrees, Nestor Court, Teston, Maidstone, Kent, ME18 5AD. (Tel: (01622) 813333)

PERHAM, Professor Richard Nelson.[1984]Professor of Structural Biochemistry in the University of Cambridge and Fellow of St John's College, Cambridge. Department of Biochemistry, Tennis Court Road, Cambridge, CB2 1GA. (Tel: (01223) 333663; email: r.n.perham@bioc.cam.ac.uk; Fax: (01223) 333667); St John's College, Cambridge, CB2 1TP. (Tel: (01223) 338764)

PERKINS, Professor Donald Hill CBE. [1966]Emeritus Professor of Physics in the University of Oxford. Nuclear Physics Laboratory, Keble Road, Oxford, OX1 3RH. (Tel: (01865) 273314; email: D.Perkins1@physics.oxford.ac.uk; Fax: (01865) 273418); and 2A Blenheim Drive, Oxford, OX2 8DG. (Tel: (01865) 311717).Medal: Royal (1997).

PERRINS, Professor Christopher Miles LVO. [1997] Director of the Edward Grey Institute of Field Ornithology in the University of Oxford. Edward Grey Institute of Field Ornithology, Department of Zoology, South Parks Road, Oxford, OX1 3PS. (Tel: (01865) 271169; Fax: (01865) 271168).

PERRY, Professor Samuel Victor.[1974] Emeritus Professor of Biochemistry in the University of Birmingham. Department of Physiology, University of Birmingham Medical School, Vincent Drive, Birmingham, B15 2TT. (Tel: (0121) 414-6930; email: S.V. PERRY@bham.ac.uk; Fax: (0121) 414-6919); . Lecture: Croonian (1984). Council Service: 1986-88.

PERRY OF WALTON, Walter Laing Macdonald, Baron Kt OBE. [1985] Fellow and formerly Vice-Chancellor of the Open University, Milton Keynes. The Open University in Scotland, 10 Drumsheugh Gardens, Edinburgh, EH3 7QJ. (Tel: (0131) 226-3851; Fax: (0131) 220-6730); and Glenholm, 2 Cramond Road South, Davidson's Mains, Edinburgh, EH4 6AD. (Tel: (0131) 336-3666; Fax: (0131) 539-5666). Lecture: Bernal (1989).

PERT, Professor Geoffrey James . [1995]Professor of Computational Physics in the University of York. Department of Physics, University of York, Heslington, York, YO1 5DD. (Tel: (01904) 432250; email: gjp1@york.ac.uk; Fax: (01904) 432214); and 49 St Margaret's Avenue, Cottingham, East Yorkshire, HU16 5NQ. (Tel: (01482) 844629)

PERUTZ, Dr Max FerdinandOM CH CBE. [1954]

PETERS, Sir (David) Keith. [1995]

PETHICA, Professor John Bernard. [1999] Professor of Materials Science at the University of Oxford. Department of Materials, Parks Road, Oxford, OX1 3PH (Tel: (01865) 273772; Email: john.pethica@materials.ox.ac.uk; Fax: (01865) 762333)

PETO, Professor Sir Richard. [1989] Professor of Medical Statistics and Epidemiology in the University of Oxford, and Fellow of Green College, Oxford. Clinical Trial Service Unit and Epidemiological Studies Unit, Radcliffe Infirmary, Oxford, OX2 6HE. (Tel: (01865) 404801; email: gale.mead@ctsu.ox.ac.uk; Fax: (01865) 558817)

PETTIFOR, Professor David Godfrey. [1994] Isaac Wolfson Professor of Metallurgy in the University of Oxford. Department of Materials, University of Oxford, Parks Road, OX1 3PH. (Tel: (01865) 273751; email: david.pettifor@materials.ox.ac.uk; Fax: (01865) 273783). Medal: Armourers and Brasiers' Award (1999)

PETTIGREW, Professor John Douglas.[1987] Professor of Physiology and Director of the Vision, Touch and Hearing Research Centre in the University of Queensland, Australia. Department of Physiology and Pharmacology, University of Queensland, Queensland 4072, Australia. (Tel: +61(0) (7) 365-3842; email: j.pettigrew@vthrc.uq.edu.au; Fax: +61(0) (7) 365-4522); and 207/180 Swann Road, Taringa 4068, Queensland, Australia. (Tel: +61(0) (7) 33871 1062). http://www.uq.edu.au/huq/jack/jack.html

PHILLIPS, Professor Owen Martin.[1968] Decker Professor Emeritus, Johns Hopkins University, USA. Department of Earth and Planetary Sciences, The Johns Hopkins University, Baltimore, Maryland 21218, USA. (Tel: +1 (410) 516-4658; Fax: +1 (410) 516-7933); and 23 Merrymount Road, Baltimore, Maryland 21210-1908, USA. (Tel: +1 (410) 433-7195; email: omphil@aol.com; Fax: +1 (410) 433-8490)

PICKETT, Professor George Richard. [1997] Professor of Low Temperature Physics in the University of Lancaster. Department of Physics, Lancaster University, Lancaster, LA1 4YB. (Tel: (01524) 593070; email: g.pickett@lancaster.ac.uk; Fax: (01524) 844037); and Thornber, Bentham, Lancaster, LA2 7AQ. (Tel: (015242) 61288)

PICKETT, Professor John Anthony.[1996] Head of the Department of Biological and Ecological Chemistry at IACR-Rothamsted, Harpenden. IACR-Rothamsted, Harpenden, Hertfordshire, AL5 2JQ. (Tel: (01582) 763133; email: john.pickett@bbsrc.ac.uk; Fax: (01582) 762595); and 53 Parkfield Crescent, Kimpton, Hitchin, Hertfordshire, SG4 8EQ. (Tel: (01438) 832832)

PICKETT-HEAPS, Professor Jeremy David.[1995] Professor of Botany in the University of Melbourne, Australia. School of Botany, University of Melbourne, Parkville, Victoria, Australia 3052. (Tel: +61(0) (613) 9344-4519; email: jdph@rubens.its.unimelb.edu.au; Fax: +61(0) (613) 9349-3268); and 47 St Leonards Road, Ascot Vale, Victoria, Australia 3032. (Tel: +61(0) (613) 9370-1862)

PICKFORD, Professor Lillian Mary.[1966]

PIKE, Professor Edward Roy.[1981] Clerk Maxwell Professor of Theoretical Physics at King's College London. Department of Physics, King's College London, Strand, London, WC2R 2LS. (Tel: (0171) 848-2155; email: erp@maxwell.ph.kcl.ac.uk; Fax: (0171) 848-2420); and 8 Bredon Grove, Malvern, Worcestershire, WR14 3JR. (Tel: (0168 45) 74910)

PILLINGER, Professor Colin Trevor.[1993] Professor of Planetary Sciences in the Open University, Milton Keynes. Gresham Professor of Astronomy at Gresham College, London. Planetary Sciences Research Institute, The Open University, Walton Hall, Milton Keynes, MK7 6AA. (Tel: (01908) 652119; email: psri@open.ac.uk; Fax: (01908) 655910)

PIPPARD, Sir (Alfred) Brian. [1956] Emeritus Professor of Physics in the University of Cambridge. Cavendish Laboratory, Madingley Road, Cambridge, CB3 0HE. (Tel: (01223) 337200; Fax: (01223) 363263); and 30 Porson Road, Cambridge, CB2 2EU. (Tel: (01223) 358713). Medal: Hughes (1959). Council Service: 1963-64.

PITT, Sir Harry (Raymond).[1957] Formerly Vice-Chancellor of the University of Reading. 105 Manor Green Road, Epsom, Surrey, KT19 8LW. (Tel: (01372) 720151)

PLATT, Professor Trevor Charles. [1998] Head of Biological Oceanography at the Bedford Institute of Oceanography, Canada and Adjunct Professor at Dalhousie University, Canada. Bedford Institute of Oceanography, 1 Challenger Drive, Dartmouth, Nova Scotia, Canada B2Y 4A2. (Tel: +1 (902) 426-3793; email: tplatt@is.dal.ca; Fax: +1 (902) 426-9388) and 33 Crichton Park Road, Dartmouth, Nova Scotia, Canada B3A 2N9 (Tel: +1 (902) 469-3339.

PLOTKIN, Professor Gordon David.[1992] Professor of Computer Science in the University of Edinburgh. Division of Informatics,University of Edinburgh, The King's Buildings, Mayfield Road, Edinburgh, EH9 3JZ. (Tel: (0131) 650-5158; email: gdp@lfcs.ed.ac.uk; Fax: (0131) 667-7209)

PLOWRIGHT, Dr WalterCMG. [1981] Formerly Head of the Department of Microbiology, Agricultural and Food Research Council Institute for Research on Animal Diseases, Compton, Berkshire. Whitehill Lodge, Reading Road, Goring, Reading, RG8 0LL. (Tel: (01491) 872891; Fax: (01491) 872567)

PLUMB, Professor (Raymond) Alan. [1998] Professor of Meteorology, Massachusetts Institute of Technology, USA. Department of Earth, Atmospheric and Planetary Sciences, MIT, Cambridge, MA 02139, USA. (Tel: +1 (617) 253-6281; email: rap@rossby.mit.edu; Fax: +1 (617) 253-6208) and 76 Westford Street, Chelmsford, MA 08124, USA. (Tel: +1 (978) 256-1402)

POLANI, Professor Paul Emanuel.[1973] Emeritus Professor of Paediatric Research in the University of London. Honorary Consultant Geneticist in the Division of Medical and Molecular Genetics, and Formerly Director, Paediatric Research Unit, at Guy's Hospital Medical School, London, and SE Thames Regional Genetic Centre. Division of Medical and Molecular Genetics, Paediatric Research Unit, Prince Philip Research Laboratories, United Medical and Dental Schools of Guy's, King's College and St Thomas' Hospital, Guy's Tower, St Thomas Street, London, SE1 9RT. (Tel: (0171) 955-5000, ext. 4456; Fax: (0171) 955-4644); and Little Meadow, Clandon Road, West Clandon, Guildford, Surrey, GU4 7TL. (Tel: (01483) 222436)

POLANYI, The Honourable John CharlesPC CC. [1971]

POLGE, Professor Ernest John Christopher CBE. [1983] Formerly Scientific Director of Mastercalf and Honorary Professor of Animal Reproductive Biotechnology in the University of Cambridge. The Willows, 137 Waterbeach Road, Landbeach, Cambridge, CB4 8EA. (Tel: (01223) 860075; Fax: (01223) 861248)

POLKINGHORNE, The Reverend Dr John CharltonKBE. [1974] Fellow of Queens' College, Cambridge and Canon Theologian of Liverpool. 74 Hurst Park Avenue, Cambridge, CB4 2AF. (Tel/fax: (01223) 360743)

POPLE, Professor John Anthony.[1961] Board of Trustees Professor of Chemistry in the Northwestern University, Evanston, USA. Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, USA. Medal: Davy (1988).

PORTER of Luddenham, in the County of Kent, George Baron Kt OM. [1960] PAST-PRESIDENT. Professor and Chairman of the Centre for Photomolecular Sciences at the Imperial College of Science, Technology and Medicine, London. Emeritus Professor of Chemistry of the Royal Institution of Great Britain. Departments of Chemistry and Biochemistry, Imperial College, London, SW7 2AY. (Tel: (0171) 594-5786; email: g.porter@ic.ac.uk; Fax: (0171) 594-5812). Medals: Davy (1971), Rumford (1978), Michael Faraday (1991), Copley (1992). Lectures: Bakerian (1977), Humphry Davy (1985). Nobel Laureate, Chemistry, 1967. Council Service: 1966-67, 1985-90; Pres. 1985-90.

POSNETTE, Dr Adrian Frank CBE. [1971] Formerly Director, East Malling Research Station, Maidstone. Gwyn Cottage, Tumblers Hill, Sutton Valence, Maidstone, Kent, ME17 3AD. (Tel: (01622) 843234)

POSTE, Dr George Henry. CBE. [1997] Health Technology Networks, PO Box 647, Gilbertsville, PA 19525, USA (Tel: 001 610 705 0828; email: gposte@healthtechnetwork.com; Fax: 001 610 705 0810)

POSTGATE, Professor John Raymond.[1977] Emeritus Professor of Microbiology and formerly Director of the Agricultural and Food Research Council Unit of Nitrogen Fixation in the University of Sussex. Houndean Lodge, 1 Houndean Rise, Lewes, East Sussex, BN7 1EG. (Tel: (01273) 472675; email: johnp@biols.susx.ac.uk). Lecture: Leeuwenhoek (1992).

POUNDS, Professor Kenneth Alwyne CBE. [1981]

POWELL, Professor Michael James David.[1983] John Humphrey Plummer Professor of Applied Numerical Analysis in the University of Cambridge. Department of Applied Mathematics and Theoretical Physics, Silver Street, Cambridge, CB3 9EW. (Tel: (01223) 337889; email: mjdp@amtp.cam.ac.uk); and 134 Milton Road, Cambridge, CB4 1LE. (Tel: (01223) 311612)

PRANCE, Sir Ghillean (Tolmie).[1993] Visiting Professor, Reading University and Scientific Director of The Eden Project. The Old Vicarage, Silver Street, Lyme Regis, Dorset D77 3HS (tel: (01297) 444991; email: gtolmiep@aol.com or gtolmiep@hotmail.com; Fax: (01297) 444955).

PRICE, Professor William Geraint.[1988]

PRYCE, Professor Maurice Henry Lecorney.[1951)

PUDDEPHATT, Professor Richard John. [1998]Professor of Chemistry, University of Western Ontario, London, Canada. Department of Chemistry, University of Western Ontario, London, Ontario, Canada N6A 5B7. (Tel: +1 (519) 679-2111, ext. 6336; email: pudd@uwo.ca; Fax: +1 (519) 661-3022) and 199 Carriage Hill Drive, London, Ontario, Canada N5X 3W8. (Tel: +1 (519) 434-1592)

PUSEY, Professor Peter Nicholas.[1996] Professor of Physics in the University of Edinburgh. Department of Physics and Astronomy, University of Edinburgh, Mayfield Road, Edinburgh, EH9 3JZ. (Tel: (0131) 650-5255; email: pusey@ed.ac.uk; Fax: (0131) 650-7165)