(Text Page to) (25) Annual precipitation : Mean annual total precipitation -- Mean annual total snowfall. Compiled from information supplied by the Meteorological Division, Department of Transport. (Canada Department of Mines and Technical Surveys.)
Descriptive text on verso of (25) Annual precipitation: The official Canadian rain gauge is a small cylinder with a cross sectional area of ten square inches, mounted with the gauge rim one foot above level ground . The man annual total precipitation and snowfall maps are primarily based on thirty-y...
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Department of Mines and Technical Surveys, Geographical Branch
1950
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