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Dr Donald Macleod, Dr Maria C Duque Magalhães, Robert Malinow, Dr Gastone Matioli, Dr Arnold J Mandell, Dr Paul A Marks, M Marois (Institut De La Vie), Professor George Marx, Gastone Matioli, Professor Bernd T Matthias, Dr Heather Donald Mayor, Dr Brian McCarthy, Michael McClure, Margaret Mead, Dr Theodore Meinechuk, Lindsey A Miles, Dr Andrei Mirzabekov, Graeme Mitchison, Professor Wilfried F H M Mommaerts, Professor A Richard Morgan (includes colour photograph, details verso, of "four backbones..."), Professor N R Morris, Dr V B Mountcastle, Dr Hans J Müller-Eberhard (Charles Thomas), and Dr Walter H Munk.

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