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REFINE
Browse All : Thematic Atlas and Text Page and Geography
1-8 of 8
Author
[Canada. Department of Mines and Technical Surveys, Nicholson, N. L. (Norman Leon), Comtois, Paul]
Note
Descriptive text on verso of (3) Mapping the interior, 1630-1870: This plate is designed to show, by means of historical maps, how the knowledge of the interior of Canada grew from earliest times to the period around Confederation ...
Author
[Canada. Department of Mines and Technical Surveys, Nicholson, N. L. (Norman Leon), Comtois, Paul]
Note
Descriptive text on verso of (2) Mapping the coasts, 1492-1874: This plate is designed to show, by means of a series of historical maps, how the knowledge of the extent and shape of Canada grew from earliest times to the period around Confederation ...
Author
[Canada. Department of Mines and Technical Surveys, Nicholson, N. L. (Norman Leon), Comtois, Paul]
Note
Descriptive text on verso of (7) Aeronautical charts: The purpose of the maps appearing on this plate illustrate the kinds of aeronautical "charts" that are prepared by the Surveys and Mapping Branch of the Department of Mines and Technical Surveys ...
Author
[Canada. Department of Mines and Technical Surveys, Nicholson, N. L. (Norman Leon), Comtois, Paul]
Note
Descriptive text on verso of (5) Extent of topographical mapping, 1955: The purpose of this plate is to show the extent to which Canada has been mapped on relatively large scales - 1:1,000,000 (15.783 miles to 1 inch) or larger ...
Author
[Canada. Department of Mines and Technical Surveys, Nicholson, N. L. (Norman Leon), Comtois, Paul]
Note
Descriptive text on verso of (4) Extent of mapping surveys, 1955: In carrying out mapping surveys, it is necessary to have control points precisely located from which the surveys can be advanced. Control points are established primarily by astronomical fixations; thereafter they are established by geometric means which, in effect, consist in solving triangles ...
Author
[Canada. Department of Mines and Technical Surveys, Nicholson, N. L. (Norman Leon), Comtois, Paul]
Note
Descriptive text on verso of (1) Routes of explorers : 1534-1870 -- 1670-1763 -- 1768-1795 -- 1800-1870: This plate shows the routes followed by the principal explorers of what is now Canada, prior to Confederation ...
Author
[Canada. Department of Mines and Technical Surveys, Nicholson, N. L. (Norman Leon), Comtois, Paul]
Note
Descriptive text on verso of (8) Hydrographic charts: This plate shows the coverage of hydrographic charts produced by the Surveys and Mapping Branch of the Department of Mines and Technical Surveys ...
Author
[Canada. Department of Mines and Technical Surveys, Nicholson, N. L. (Norman Leon), Comtois, Paul]
Note
Descriptive text on verso of (6) Comparison of scales: The main purpose of this plate is to show the changes in the detail and type of geographical information which can be shown at various scales beginning with the largest scale (1:14,000 or 1 inch to 1200 feet), and ending with the smallest (1:4,055,040 or 1 inch to 64 miles) ...
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