A treatise on surveying, comprising the theory and the practice (1906)
Gillespie, William Mitchell, 1816-1868, Staley, Cady, 1840- · New York D. Appleton · leaf 363
^J < < cES ° Z QI O 35^ w^ -§ - « 10^ 25- • 20^ 3° 15 2 = 352 TOPOGRAPHY. drawn in sets, beginning at the top and working down, blendingthe sets into each other to prevent white streaks down tlie slope,shown at o o, Fig. 519. They are drawn toward the draughtsman,and from left to right. If… … trate the manner of putting in the hachures. Fig. 520 shows amap on the horizontal system with oblique illumination. 798. The Vertical System with Vertical Illumination. Themost important method under this system is known as Lehmamisor the German method. It will be described, as it is the basis…
Surveying
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