Maps, Their Uses And Construction: a Short Popular Treatise On the ...
Maps, Their Uses And Construction: a Short Popular Treatise On the ...
Gabriel James Morrison
The book Maps, Their Uses And Construction: a Short Popular Treatise On the ... was written by author Gabriel James Morrison Here you can read free online of Maps, Their Uses And Construction: a Short Popular Treatise On the ... book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Maps, Their Uses And Construction: a Short Popular Treatise On the ... a good or bad book?
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36 and mark off equal lengths on the meridian, each equal to a degree corresponding to that radius ; then through each point of division describe a circle having its centre in the central meridian and having a radius equal to So MAPS: THEIR USES AND CONSTRUCTION cotan latitude to the radius assumed. Mark off degrees of longitude on each parallel (in practice every fifth or tenth may be enough) and draw curved lines to represent meridians. This suits well for a map with great differ- ence of lat...itude and comparatively little difference Fig. 37 of longitude, and can be used advantageously in areas crossed by the Equator, such as Africa. In this respect it differs essentially from the simple conical projection, which is suitable only for moderate differences of latitude, but can take in great differences of longitude. PROJECTIONS CONSIDERED MATHEMATICALLY 8i Fig 38 1 / j^vn \ / r A \\ rn 1 1 t ^H' r^ J j 7/ J \}X\r 7 T^S^ / \ X \ i 1 1 9 ^ >
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