Elements of military sketching and map reading (1917)
Barnes, John Bryson, 1876- · New York : D. Van Nostrand · leaf 44
gis the following: Of a soft material (clay or wetsand) form a small irregular figure, giving It the shape 34 CONTOURS AND CONTOURING 35 of a hill. (Fig. 21.) Pass several horizontal planes(pasteboard) through this figure, carefully preservingan equal vertical interval between the planes. (Fig.22.)… … Fig. 21. pencil marks and file, as in Fig. 24. Press the paste-board to the bottom of the staff, and you have theway this hill would be represented on a map. (Fig. 25-) The picture of the same hill (Fig. 26) is shown asit would appear on a map by Fig. 26A. The horizontaldistance between contours,…
Military topography · Maps, Military
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