Elements of Surveying, and Navigation: With Descriptions of the Instruments and the Necessary TablesA.S. Barnes & Company, 1867 - 322 páginas |
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Términos y frases comunes
axis back-sight base line bearing called centre column comp compass Cosine Cosine D Cotang course decimal degrees determined diff difference of latitude difference of level direction divided double meridian distance draw east error example feet figure fore-sight given angle given line given point half hence horizontal distance horizontal line horizontal plane hypothenuse inch instrument intersection latitude and departure length limb line of collimation logarithm longitude marked measure method middle latitude miles multiplied paper parallel PARALLEL SAILING perpendicular plane of reference plane sailing plane triangle protractor radius right angles right-angled triangle rods sailing scale of chords scale of equal screws secant sector sides sights spherical excess spider's lines square chains staff station straight line subtract surface survey Tang tangent telescope theodolite trigonometrical vernier plate vertical yards