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A Treatise on the Method of Government Surveying as Prescribed by the United ...
Shobal Vail Clevenger
No preview available - 2014
75 links west 80 chains altitude ascertained back sights base line closing corner cloth convergency corner built correction Cosine 8ine Cotang declination deputy distance east and west edition Engineers equator equatorial lines exterior lines field notes Guide Meridian horizon illustrations inches Initial Point instrument intersection lake latitude arc length line between Sections line is run line run links north lllustrated logarithm longitude lron magnetic marked meander corner ment meridian line miles natural tangent needle north and 75 north or south notches object parallax plat posts Principal Base Principal Meridian Prof quarter-section corner random line refraction retraced right angles section corner Sections 25 sextant side solar compass South 89 south boundary Standard Parallel starting-point stone stream subdividing surveyor surveys tang tier tion township corner township lines Treatise trigonometry true line tststss tude UDeg variation west boundary western tier wood-cuts