Charles Thomas Bolton achieved world-wide recognition for his work on those exotic objects known as black holes. Specifically, he was the first to demonstrate the existence of a black hole. His observations of the star which is coincident with one of the strongest sources of celestial X-rays showed that it is orbiting an invisible body, the source of the X-rays. From the nature of the orbit Bolton showed convincingly that the companion body is so very massive that it must be a black hole. In another area Professor Bolton has solved a long-standing riddle in astrophysics posed by chemical inhomogeneities found in hot luminous stars. His work showed that strong magnetic fields account for their spectra and variability. Bolton's research is of broad significance in modern astrophysics.

John Francis Bosher is an historian who has established a reputation in both Canada and Europe through his writings on eighteenth century France. His two books, "The Single Duty Project"1965) and "French Finances 1770-1795" (1970), and a large number of scholarly articles have opened up, in an imaginative and pioneering way, the study of the pre-revolutionary public administration of France. His research has been resourceful and thorough, his writing style elegant and his interpretation of the critical subject widely praised. His studies of the administration of New France and the relations between France and New France have been of great importance to students of Canadian history. Professor Bosher's international standing as an historian is testimony to the seriousness with which he approaches scholarship and the magnitude of his achievement.