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Contained within the 4th Edition (1974) of the Atlas of Canada is a collection of six maps. Each map shows the median depth of snow for December 31st, January 31st, February 28th, March 31st, April 30th and May 31st respectively.

Contained within the 4th Edition (1974) of the Atlas of Canada is a set of two maps accompanied by graphics. The first map shows the extension of the railway network. Gradual extensions are denoted for the following periods: 1836 to 1852, 1853 to 1880, 1881 to 1905, 1906 to 1918, 1919 to 1935,...

Contained within the 4th Edition (1974) of the Atlas of Canada is a map that shows the locations of railways and canals as of 1971. The railway names and operators are shown and whether or not the railway is operated as a common carrier or a private carrier. Canals and locks are shown on the map.

Contained within the 4th Edition (1974) of the Atlas of Canada is a set of two maps. One map shows the average precipitation for April to September. The second shows the average precipitation for October to March.

Contained within the 4th Edition (1974) of the Atlas of Canada is a collection of five maps. Two maps show, for fertile regions, the average date of the last frost in spring and the average date of the first frost in autumn. The three remaining maps show the median depth of snow cover at a scale...

Contained within the 4th Edition (1974) of the Atlas of Canada is a set of three maps relating the effects and dependency of vegetation on environmental variables. One map shows the average annual potential evapotranspiration in inches from ground and plant surfaces for areas where there is a...

Contained within the 4th Edition (1974) of the Atlas of Canada is a set of three maps. The main map shows the location and extent of census divisions and subdivisions as of 1961. The second map shows the same information for the most populous regions of Ontario and Quebec at a larger scale of 1:5...

Contained within the 4th Edition (1974) of the Atlas of Canada is a set of two maps. The first map shows the location of weather stations. Stations are denoted as having 25 to 30 year records within the period 1931 to 1960. As well, whether the station collected temperature data, precipitation...

Contained within the 4th Edition (1974) of the Atlas of Canada is a set of three maps. The main map shows the location and extent of census divisions as of 1961. The second map shows the same information for the most populous regions of Ontario and Quebec at a larger scale of 1:5 000 000. These...

Contained within the 4th Edition (1974) of the Atlas of Canada is a map that shows the average annual number of days with precipitation. The main map is accompanied by a supplementary map at a scale of 1:40 000 000, outlining precipitation regions. As well, climatic graphs for selected stations...