A Treatise on Military Surveying, Theoretical and Practical: Including a Description of Surveying InstrumentsD. Van Nostrand, 1864 - 193 páginas |
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A Treatise on Military Surveying, Theoretical and Practical George Henry Mendell Sin vista previa disponible - 2019 |
Términos y frases comunes
accuracy adjustment altitude applied Army Artillery axis azimuth base bubble Cavalry centre clamp cloth co-ordinates compass construct correction cosine cotang curvature determined difference of level direction division draw elevations Engineer equal error feet fixed gives graduated ground hachures height hence horizontal curves horizontal distance horizontal limb horizontal projection illustrated inches inclination Infantry instruction instrument intersection KENNER GARRARD known points length magnetic magnetic bearing measured angles meridian method military necessary needle object observed obtained octavo officer parallel perpendicular plane of reference plane table plotted position primary points principal points protractor reconnoissance reference represent right ascension road scale secondary points seen sextant side sine sketch slope staff star station survey take the bearing taken tance tang tangent telescope theodolite tion triangles tube U. S. Army United States Army vane vernier vertical village yards zenith distances zero
Pasajes populares
Página 72 - A, about sixteen inches square, having its upper edge rabbeted, to receive a boxwood frame, B, which being accurately fitted, can be placed on the board in any position, with either face upwards. This frame is intended both to stretch and retain the drawing paper upon the board, which it does by being simply pressed down into its place upon the paper, which for this purpose must be cut a little larger than the board. One face of the frame is divided...