The Plane-table and Its Use in Topographical SurveyingD. Van Nostrand, 1869 - 79 páginas |
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Página 51
... slope ( on the windward side ) , which is gradual . Succes- sive surveys on sandy coasts , where close attention has ... slope is found . For such dunes the several slopes for different points of the compass are equally inter- esting ...
... slope ( on the windward side ) , which is gradual . Succes- sive surveys on sandy coasts , where close attention has ... slope is found . For such dunes the several slopes for different points of the compass are equally inter- esting ...
Página 52
... slopes should be given . Bluffs , if worn by the waves , will usually exhibit three slopes : 1st , the caving slope at the top ; 2d , the talus ; 3d , the apron or flat , exposed wholly only at very low tides . The caving slope is ...
... slopes should be given . Bluffs , if worn by the waves , will usually exhibit three slopes : 1st , the caving slope at the top ; 2d , the talus ; 3d , the apron or flat , exposed wholly only at very low tides . The caving slope is ...
Página 54
... slope is regular and tolerably steep , the tracing of them is attended with but little difficulty ; but where the rise is very gradual , giving large horizontal distances between the contours , even when the vision is unobstructed , or ...
... slope is regular and tolerably steep , the tracing of them is attended with but little difficulty ; but where the rise is very gradual , giving large horizontal distances between the contours , even when the vision is unobstructed , or ...
Página 58
... slopes of hills , unless distinguished by ponds or marsh , should be marked with the letter D in red . The distinct summits of hills should be marked in figures when they form characteristic or remarkable features of the country . In ...
... slopes of hills , unless distinguished by ponds or marsh , should be marked with the letter D in red . The distinct summits of hills should be marked in figures when they form characteristic or remarkable features of the country . In ...
Página 67
... slopes , the record of tallies , and such other matters as may be needed , and may serve to assure accuracy in case of ... slope may be measured and the angle of inclination taken with the vertical arc , with repetitions , and the meas ...
... slopes , the record of tallies , and such other matters as may be needed , and may serve to assure accuracy in case of ... slope may be measured and the angle of inclination taken with the vertical arc , with repetitions , and the meas ...
Otras ediciones - Ver todas
The Plane-table and Its Use in Topographical Surveying Alexander Medina Harrison Vista completa - 1884 |
A Treatise on the Plane-Table and its use in Topographical Surveying: (From ... Vista completa - 1870 |
Términos y frases comunes
accuracy adjustment alidade axis brass Brevet Bridge centre chain Chemistry circle clamp Cloth Coast Survey construction contours correct cross-hairs declinatoire depression detail determined diagrams direction distance draw edition elevation engravings experiments Feet fiducial edge field formula forward line ground heights hills horizontal Hypsometry Illustrated instrument intersection Iron J. P. WHITNEY line of sight lines drawn lithographic plates manufacture marked measured ment meridian Merrimack River method metres metric system middle point Mines objects observed paper parallel pencils perpendicular placed plane Plane Table plane-table plotted points point occupied position PRACTICAL TREATISE Prof projection Railway resection revised and enlarged rule scale sheet side sketching slope station Steam Engine steel straight edge Students Submarine surveyor taken tangent screw Telegraph telemeter telescope tion TOPOGRAPHICAL SURVEYING triangle of error triangulation points true point Trusses U. S. Army U. S. Navy vertical arc wood-cuts ZERAH COLBURN