Twenty-one years, 1950–70, are covered in this, the fourth index of the Canadian Historical Review. The three previous volumes covered only a decade each, and yet were large tomes, mainly because they included a separate listing for each entry in the bibliographical section, Recent Publications Relating to Canada. In the last twenty years, however, many bibliographies of Canadian publications have appeared, and many journals, both local and national, have adopted the practice of listing current articles and books in their field. It therefore seems no longer necessary for the index to the CHR to include more than a clear...