Paul LeBlond has established an international reputation for his exploratory work on the basic properties of a wide variety of oceanic wave motions and their interactions with currents and shorelines. He has worked in Kiel and Moscow, presented a lecture series in Havana, and, in collaboration with L. A. Mysak produced the major text "Waves in the Ocean", which is recognized as the definitive text on many aspects of this subject. Through lectures, publications, editorial activities, activities as a visiting professor in Quebec and Nova Scotia, and as a stimulating teacher and researcher, he has done a great deal to develop oceanography in Canada and is held in high esteem by his colleagues. He was one of a small group which in 1977 succeeded in bringing oceanographers and meteorologists together in a common society, the Canadian Meteorological and Oceanographic Society. In recent years, LeBlond has been active in ocean conservation, fisheries and science policy, serving on Fisheries Resource Conservation Councils on Atlantic and Pacific coasts as well as with national and international organisations.

Jack L. Locke, widely known for contributions to solar spectroscopy and radioastronomy has made important studies of infra-red solar spectrum. Responsible for planning and establishing the Dominion Radio Astrophysical Observatory, Penticton, B.C. where he made major contributions to knowledge of interstellar hydrogen. Has recently played a leading role in making first measurements of diameters of quasi-stellar objects using interferometer of 3000 km baseline. These results constitute a fundamental breakthrough, making possible radio measurements of distant objects of higher resolving power than is possible by optical methods and stimulating use of similar methods in the U.S. and other countries.

MacRae's early research in galactic structure, stellar photometry and spectra, and stellar statistics constituted a significant contribution to our knowldege of the detailed structure of the galaxy and interstellar material. Since returning to the University of Toronto in 1953 he has vigorously supported the research programs of the David Dunlap Observatory and has shown an outstanding degree of versatility in initiating new research programs. Among these were: (a) the setting up of a technique of precision photometry for the determination of the apparent magnitudes of over 1000 stars of a large radial-velocity program, (b) pioneer work in the use of an electronic computer for the solution of spectrographic binary orbits, (c) the design, construction and use (in collaboration with Oke) of a photoelectric spectrophotometer for the 74-inch telescopean instrument which is the prototype of similar instruments now used elsewhere, (d) the organization and leadership of a radio astronomy project, operated with continuing and increasing government support, jointly by the Departments of Astronomy and of Electrical Engineering at the University of Toronto. This radio astronomy project has served the IGY in the study of solar radio radiation as well as the IAU and URSI in the measurement of absolute flux from discrete sources, and it is an important centre of research training for radio astonomers and a source and testing ground of new ideas for the new Canadian radio observations at White Lake, B.C. (Dominion Observatories) and at Algonquin Park (N.R.C.).

Cedric Mann, Director General (Retired), Institute of Ocean Sciences, has devoted his research to the studies of the mixing processes of large water masses and to ocean circulation in the North and South Atlantic. These results of his studies of the Labrador Current, the Gulf Stream, the North Atlantic Current, the deep flow from the Norwegian Sea into the Atlantic, and of the Antarctic Circumpolar Current through Drake Passage have been the basis for theoretical studies. His research on the variability of ocean properties opened new fields of investigations in time-series studies. He has also contributed to the development of marine science in Canada as Director General of Institutes on East and West coasts and through membership on international committees.

John Maxwell is known to geologists in Canada as the national authority in the complex field of rock and mineral analysis, to which he brings an exceptional blend of competence in geology, chemistry and physics. His laboratories, established in the Geological Survey, have made contributions to geological research in Canada of worldwide renown. An innovator of instrumental methods and umpire of difficult analyses, he is author of a definitive textbook "Rock and Mineral Analysis" and has just been honoured by an invitation to revise Hillebrand and Lundell's classic text "Applied Inorganic Analysis". Named a principal investigator of the lunar samples by NASA, he has been appointed national coordinator of the Federal government team for this research.

Digby J. McLaren, M.A. (Cantab), Ph.D. (Michigan) internationally recognized Stratigrapher and Palaeontologist, and currently the proposed Vice-President of the Palaeontological Society, has done research throughout the Arctic and Western Canada, applying lithological and Palaeontological techniques towards establishing the accepted classification and interpretation of Devonian and other Palaeozoic rocks. His research on Stratigraphy, interpretation of carbonate rocks, rhynchonelloid brachiopeds, rugose corals, fossil fungi and possible Precambrian metazoans is described in numerous publications including a contribution to an internationally authored "Treatise". He has proved a capable research manager, first as head Palaeontologist of the Geological Survey and now as Director of the New Institute of Sedimentary and Petroleum Geology.

Dr. Milton is internationally recognized as an authority on nuclear fission. Since coming to Chalk River from Princeton University in 1951 he has carried out an energetic program of research on fission fragments and on the associated neutrons and gamma rays, much of it in collaboration with Dr. J. S. Fraser. This work has provided detailed understanding of the fissioning system just before and after it divides. He is currently investigating the energies and angular distribution of fragments in charged particle-induced fission to elucidate the nature of the fission barrier. In all his work Dr. Milton has combined imaginative physical insight with great experimental skill.

Jaan Noolandi, whose fundamental theoretical work has contributed to the better understanding of complex polymeric systems, including polymer blends, block copolymers, polymeric surfactants, reptation theory of entangled polymer melts, and gel electrophoresis of DNA, is one of the world's leading polymer physicists. The work on pulsed electric field gel electrophoresis of single and double stranded DNA drew on an analogy with dispersive transport phenomena of charge in amorphous semiconductors. This work established a solid quantitative basis for the separation of charged macromolecules in a gel, allowing for subsequent applications of the pulsed field technique to DNA sequencing with an extended range of chemical base recognition. This work has supported the human genome project with both theory and hardware development and commercialization.

Dr. JA Owens, Ph.D. (Botany), Oregon State University, 1963 works primarily on reproductive anatomy of gymnosperms. In this very difficult area he has published 90 original research papers in journals with rigorous peer review, 22 books/monographs, and 13 chapters in Symposia. His work on conebud differentiation in 'Pseudotsuga' (Douglas fir) is a classic, and his series of papers on sex expression in conifers is the definitive work. Dr. Owens is frequently asked to participate in International Symposia on gymnosperms. He is truly an eminent Canadian scientist with a worldwide reputation for excellence.

Fred Roots is Canada's most versatile environmental scientist, with a world reputation well supported by his curriculum vitae. He has a remarkable command over the major field sciences, most especially in northern and alpine areas. His work in environmental policy-making has been influential, and is based on a deep intellectual grasp of the underlying sciences, including the relevant social sciences.

Dr. Schaefer is an imaginative, skilled and prolific researcher. Since his first publication in 1955, he has produced five papers per year. Some of these papers are of outstanding calibre and are 'classics' in the field. His principal contributions are studies of solvent effects, analysis of multiplet spectra, and the evaluation of some long range magnetic parameters. He has also made basic contributions to correlation studies of magnetic parameters with electron density, ionization potential and electronegativity. His work is held in very high esteem both at home and abroad and undoubtedly establishes him as an authority in his field.