Canada: How Many Glaciations?

Editor's note : The first President's Symposium was held during the cag annual meeting at the University of Winnipeg in 1983. The idea was to air some broad and invigorating topic to which invited specialists from across the country could contribute under presidential direction. The inaugural topic selected by the president, Professor D.C. Ford, was ‘Canada: how many glaciations?’ The specialist contributors certainly learned a great deal, and the symposium was well received by the general membership whom the specialists wished to interest. This article consists of a summary of the presentations made by the various contributors and a concluding polemic.