Canada's federation is distinct from the other two major federations in the English-speaking world in resting upon an alliance of two peoples and two cultures. Other differences exist, but this is fundamental. Since 1867 the dualism of culture has been slowly woven into the political fabric of the nation, although outside Quebec its implications are still not always appreciated or wholly accepted. With the appearance in 1956 of the Report of the Royal Commission of Inquiry on Constitutional Problems, English-speaking Canadians have little excuse for misunderstanding the position of their French-speaking compatriots. The Commission was appointed by provincial statute in January, 1953, under the chairmanship of Judge Thomas Tremblay. Its bulky report is never likely to be widely read. It is prolix and sometimes repetitious to the point of tedium; its analysis would have been more telling had it been tidier and more compressed. Yet, despite such flaws, it is a landmark in the literature of federalism: it describes and explains more fully than any other public document the position and anxieties of Quebec in the federal state, and defends the concept of a strict federalism as the essential basis for the success of Canada's national experiment. For the Tremblay Commissioners the issue of Quebec in the federation and the issue of the French in the nation are one and the same. In harmony with their theme they submit numerous recommendations. We cannot, however, assess these or do justice to their premises, without first reviewing briefly the historical position of Quebec in Canadian federalism.