File:Topographic maps and sketch mapping (1920) (14592575878).jpg

Identifier: topographicmapss00finc (find matches)
Title: Topographic maps and sketch mapping
Year: 1920 (1920s)
Authors: Finch, James Kip, 1883-
Subjects: Cartography Military maps
Publisher: New York : John Wiley & Sons, Inc.
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress

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ese will be explained later. 1. Is there any difference between the road going toward the upper left- hand corner (Swansea Valley) from Neath and that going toward theupper right-hand corner? 2. Do these roads have fences on each side or are they unfenced? 3. How many kinds of railways are shown on this map? 4. What are the faint horizontal markings slightly above the center of the map? 5. What do the dozen peculiar marks two and a half inches below the top of the map and one inch in from the right edge represent? 6. What do the two letters L and B near road one-half inch in from upper right-hand corner represent? 7. What is the character of the church at Neath? 8. Point out a road that is unfenced? 9. Point out a road fenced on one side only? 10. What is represented by the fine black dots covering the area to the rightof Neath near the reservoirs? La Carte de France de VEtat Major. This is the principalmap of France, conceived by Napoleon and has been the WHAT A TOPOGRAPHIC MAP SHOWS
Text Appearing After Image:
pIG# 7—Portion of the Amiens Sheet (No. 12) of the Carte de France de lEtatMajor. Scale 1 : 80000. CONVENTIONAL SIGNS 17 inspiration for many European surveys.* Fig. 7 shows atypical section of this map which is printed in one color only,and Fig. 6 gives the principal topographic signs. Note that railways having two or more tracks are shownby solid lines of varying thickness depending on the numberof tracks. Single-track lines are shown by the same symbolwhich is used on the U. S. G. S. maps. Care must be takennot to confuse cart tracks with narrow-gage railroads. Thelatter will usually run out from main lines. Note also thata new feature is introduced on the road signs which havesmall dots on either side representing trees. Do not confusethese dots with those used to indicate a commune boundary,which also frequently runs along a road. There is practicallyno difference between the Route Nationale, which is main-tained by the State in excellent condition, and the RouteDepartmentale,

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