Dr. Nicholas Mrosovsky is probably the most significant contributor to the study of spontaneously occurring changes in body weight in hibernating and non-hibernating mammals. He has established the concept of variable 'set points' in regulation of body fat content and weight. His work on marine turtles, and particularly on the significance of prehatching temperature on sex ratio, has world-wide importance for efforts to save these animals from extinction. Thus, he has become a leading contributor and consultant at the international level on marine turtle biology.

Outstanding taxonomist and Chief of the Insect Taxonomy Section, Entomology Research Institute, Ottawa, Dr. Munroe's research is mainly on a major group of moths (Pyraloidea). He uses his studies on the calssification of the world fauna of this group as a background for more fundamental contributions to evolution and biogeographical theory. Widely travelled and unusually well-informed on disciplines ancillary to his specialties, his professional opinions are widely sought and he participates extensively in the activities of national and international organizations. He has published about 126 papers, mostly on his research, and is the author of several major monographs. His work is noted for its breadth of conception, its extent and variety, technical and literary polish, and for its creative content.

Dr. Mustard has focused his research career on platelets, considering them as particles at the interface between blood and blood vessels. For the former, he has used an ingenious variety of methods to delineate the biochemical events mediated by platelets in thrombosis. For the latter he has been a prime contributor to our knowldege of the generation fo atheromatous placques by the inclusion of thrombosis material into the walls of blood vessels. Dr. Mustard was the recipient of teh William J. Dawson Medal of the Royal Society of Canada in 1993.

A distinguished career at Cambridge and Queen's University led Tony Naldrett first to study nickel sulphides and silicates at the Carnegie Institution of Washington, from an experimental point of view, then to the field, in particular the Sudbury nickel mines. Penetrating studies there led to new insights into the history of the Sudbury meteorite impact and subsequent development of the nickel-copper ores. His well-equilibrated melange of field, microscope and thermodynamic approaches to modern mineralogy and petrology have more recently led him further afield to look generally at the evolution of ultramafic and mafic rocks in the early Archaean crusts of many parts of the world. His distinction as a modern economic geologist and petrologist is matched by his gifts as a teacher and clarity of verbal expression, which are renowned wherever he has lectured.

Almeria Natansohn, Department of Chemistry, Queen's University, is an international authority on charge-transfer interacting polymer blends and in the photochemical orientation of azobenzene groups within high-Tg amorphous polymers. Her most important contributions are the observation of the general nature of azobenzene orientation in polymers, of cooperative motion of polar side groups in amorphous polymers below their glass transition temperatures, of optically-induced massive motion of polymer materials based on azobenzene groups, and the exploitation of these phenomena in photonics. Natansohn also has made an important contribution to the study of interfaces in polymer blends. The most promising aspects of her research are related to the photochemically-induced formation of organized domains in amorphous polymers, which may lead to various degrees of organization, including liquid crystalline and crystalline domains. This self-organization is important in all optoelectronic applications of polymer materials.

Ernest Richard Ward Neale, Ph.D., Head, Appalachian Section, Geological Survey of Canada, Ottawa, did his early field work with the Québec Department of Mines. After receiving the doctorate degree from Yale in 1952, he continued summer work in Quebec and accepted a teaching post at the University of Rochester. He joined the Geological Survey of Canada in 1954 and was appointed Head of the Appalachian Section in 1959. In the short time since then he has transformed a group of individual scientists, each intent on their own problems, into a well co-ordinated scientific unit that, as well, looks critically into all regional phases of Appalachian geology. He has amply displayed the qualities both for leadership and for scientific research.