A treatise on surveying ; in which the theory and practice are fully explained (1860)
Alsop, Samuel · Philadelphia, E. C. & J. Biddle & co. · leaf 164
c. L] DEFINITIONS AND INSTRUMENTS. 161 out a line in the direction of the line of collimation. Thiswill be a meridian line. 264. The Points of the Compass. If through anystation a line be drawn perpendicular to the meridian it willrun east and west. If we face the south, the west will beto the… … For nautical purposes, each of the quadrants into whichthe horizon is divided is further divided into eight partscalled points, and named as in Fig. 114, commencing at thenorth and going to the east. North, 1ST.; North by East, (N.5E.;) North Northeast,(N.N.E.;) Northeast by North, (N.E.6N.;)…
Surveying
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