A freshening breeze of scientific interest is blowing steadily along Canada's eastern, western and arctic seaboards. With the longest national coastline in the world, bounded by three oceans and a myriad of islands large and small, Canada has a natural, urgent interest in oceanography -- the scientific study of the mysterious sea and all its wonderful ways. A neglected branch of scientific exploration but a few years ago, oceanography in Canada is now one of the newest, most exciting and vital fields of discovery. Spear-heading Canada's concerted search for knowledge is the Bedford Institute of Oceanography on the Atlantic Coast. To be officially opened October 23-25, the Institute already has at work a solid nucleus of scientists, hydrographers, technicians, men of the sea. They will range Canada's blue, green and frozen white oceans, study their physical-chemical properties, investigate the life they contain, the riches they hide. They will probe the sea's commercial use, defensive strength, far-reaching effects On mankind; provide Canada's scientific contribution to international studies of the world's seven seas.