Professor Aspinall is internationally known for his work in the area of polysaccharides. His research record is outstanding, and he is recognized as one of the world's foremost carbohydrate chemists. He has contributed enormously to the methodology of structure determination and to the chemistry and biochemistry of complex carbohydrates. His research recently has become important in the serodiagnosis of leprosy and of specific infections in persons with AIDS. He has been editor, contributor and author of learned books, senior author of numerous research papers, and a highly respected educator.

Douglas Atack is the acknowledged world leader in the science of mechanical pulping, an area of vital importance to one of Canada's foremost industries. His contributions towards the theory of grinding and refining of wood pulp are unmatched by anyone else in the field. Early in his career he discovered the mechanisms involved in the production of stone ground-wood. He then went on to elucidate the principles of chip refining in double disc refiners. Through his work, he has played a major role in the introduction of chip refining, thermomechanical pulping and chemithermomechanical pulping into the Canadian newsprint industry.

Distinguished mathematician of great technical power, his 40 deep and original contributions to many important branches of analysis have triggered research which is now in the focus of international scientific interest. He is held in the highest esteem by analysts all over the world; his recent book "Discrete and continuous boundary value problems" is now being translated into Russian by I.G. Iochvidov and M. G. Krein, two leading Russian mathematicians.

Long Citation A leading scholar of public administration and the political process, Peter Aucoin has helped to interpret and to shape the great changes that have occurred in public-sector management and the Canadian electoral regime in the last two decades. He is recognized here and abroad for his penetrating analyses of governance issues and electoral policy. Equally, he is distinguished for the practice of his profession in service to government, in which he has demonstrated intellectual leadership on subjects like Senate reform, campaign-finance regulation and accountability in government. He is the Eric Dennis Memorial Professor of Government and Political Science and Professor of Public Administration at Dalhousie University. Short Citation A leading scholar of public administration and the political process, Peter Aucoin has helped to interpret and shape the great changes that have occurred in public-sector management and the electoral regime. He is distinguished for the practice of his profession in service to government and has demonstrated intellectual leadership on subjects like Senate reform.

Professor Aust is recognized world-wide as Canada's most distinguished scientist in the field of grain boundary engineering. His pioneering work was high level "Surface Science" decades before this subject became fashionable. It has led to important technical applications in metals and ceramics. His seminal work during the fifties and sixties including experimental and theoretical studies clearly defined structure-property relationships for grain boundaries in engineering materials. Professor Aust's contributions including excellence in published research and scholarly achievements, and his extensive international involvements have had an exceptional impact within universities and industry both within Canada and abroad.

Professor W.A. Ayer has made outstanding contributions to the progress of natural products chemistry in both the terpenoid and alkaloid fields. Among his many achievements, particularly significant are the isolation and structure determination of a novel type of diterpenoid (the cyathins) and many outstanding contributions to Lycopodium alkaloid chemistry. The total synthesis of lycopodine has received considerable acclaim and a highly original synthesis of grandisol has also been achieved. The structural studies have led to important advances in physical methods such as the discovery of the antioctant behaviour of positive nitrogen and the first recognition of the y-antiperiplanar deshielding effect in 13C.m.r. The work has thus had a far-reaching impact on several areas of organic chemistry.

Professor Richard Bader is distinguished for his original and innovative research on electron density distributions in molecules. The results of his theoretical calculations yield new understanding of chemical bonding and valence in molecules, thus stimulating renewed research efforts by others. He is also a superb teacher and he has the knack of lecturing and writing on complex scientific concepts with impressive clarity.