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Contained within the 3rd Edition (1957) of the Atlas of Canada is a plate that shows four maps of certain climatic aspects of the growing seasons. The first map shows the mean annual length of the growing season throughout Canada, assuming the growing season to be that part of the year when the...

Contained within the 4th Edition (1974) of the Atlas of Canada is a set of three maps showing the length of the growing season, the start of the growing season and the end of the growing season for the fertile regions. A fourth map shows the average length in days of the frost-free period for the...

Contained within the 4th Edition (1974) of the Atlas of Canada is a set of two maps showing for 1960, the total precipitation for April to September and the variation from average precipitation for April to September. Also included on this map plate is a set of graphs showing farmland use and...