A Rudimentary Treatise on Land and Engineering Surveying, with all the modern improvements ... With illustrationsJohn Weale, 1854 - 224 Seiten |
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ABCD accuracy acres adjustment axis beam compasses breadth bubble centre chain lines common compass correct cross sections cubic yards cutting depth direction distance divided division draw Engineering equal error example feet field book figure finding the contents fore sights formation level formula Gentleman's Diary given gradient ground height horizontal inches inclosure instrument intersection laid Lay the ruler length level book limb main lines mark measured method mile move it parallel NOTE object offsets parallax parallel ruler perpendicular position Prob PROBLEM protractor quality lines quantity of land radii radius railway curves ratio right angles river river Ouse road screw sextant shewn shews side sine slopes spirit level square links staff stations straight fence surface survey surveyors taken taking tangent telescope theodolite Tithe Commissioners trapezium triangle trigonometry tunnel vernier scale vertical whence width