Elements of surveying and navigation : with a description of the instruments and the necessary tables (1847)
Davies, Charles, 1798-1876 · New York : A.S. Barnes & Co. · leaf 112
ouble meridian distance of the course from l to 2,which is also equal to its departure. Then forming the products, adding them together, takingtheir difTerence, and dividing it by 2, according to the rule, weobtain the content of the ground. WITH THE COMPASS. 107 144. It only remains to make aplot… … Having fixed upon the scale on which the plot is to bemade, lay off from B on the meridian, a distance Bs equal tothe difference of latitude of the first course, and at s erect aperpendicular to the meridian, and make it equal to the de-parture of the first course : then draw BC, which will be…
Surveying · Navigation
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