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" It may be remarked that, when the several operations are performed with perfect accuracy, the sum of the northings will be equal to that of the southings, and the, sum of the eastings to that of the westings. This necessarily follows from the circumstance... "
An Elementary Treatise on the Application of Trigonometry: To Orthographic ... - Page 93
by John Farrar - 1822 - 153 pages
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A Treatise of Practical Surveying: Which is Demonstrated from Its First ...

Robert Gibson - Surveying - 1806 - 486 pages
...to prove whether the field-work be truly taken, or not; for if the sum of the northings be equal to that of the southings, and the sum of the eastings to that of the westings, the field-work is right, otherwise not. Since the proof and certainty of a survey de* pend on this...
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The Theory and Practice of Surveying: Containing All the Instructions ...

Robert Gibson - Surveying - 1811 - 580 pages
...to prove whether the field- work be truly taken, or not; for if the sum of the northings be equal to that of the southings, and the sum of the eastings to that of the westings, the field-work is right, otherwise not. Since the proof and certainty of a survey depend on this truth,...
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The Theory and Practice of Surveying: Containing All the Instructions ...

Robert Gibson - Surveying - 1814 - 558 pages
...to prove whether the iield-work be truly taken, or not ; for if the sum of the northings be equal to that of the southings, and the sum of the eastings to that of the westings, the field-work is right, otherwise not. Since the proof and certainty of a survey depend on this truth,...
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An Elementary Treatise on the Application of Trigonometry to Orthographic ...

John Farrar - Logarithms - 1822 - 244 pages
...arrange the several results as in the following table, adapted to figure 70. Area =3£". lr. 27,2io It may be remarked that, when the several operations...correctness of the work. But it is not to be expected that the measurements and calculations in ordinary surveying will strictly bear this test. If there...
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An Elementary Treatise on the Application of Trigonomentry to Orthographic ...

John Farrar - Trigonometry - 1833 - 274 pages
...the several operations are performed with perfect accuracy, the sum of the northings will be equal to that of the southings, and the, sum of the eastings...correctness of the work. But it is not to be expected that the measurements and calculations in ordinary surveying will strictly bear this test. If there...
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An Elementary Treatise on the Application of Trigonomentry to Orthographic ...

John Farrar - Trigonometry - 1833 - 276 pages
...the several operations are performed with perfect accuracy, the sum of the northings will be equal to that of the southings, and the sum of the eastings...westings. This necessarily follows from the circumstance o^ the surveyor's returning to the place from which he set out; and it affords a means of judging of...
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A Treatise on Surveying: Containing the Theory and Practice ; to which is ...

John Gummere - Logarithms - 1833 - 380 pages
...the easting to the westing ; or in other words, that the sum of all the northings must be equal to that of the southings, and the sum of the eastings, to that of the westings. . This principle enables us to judge of the accuracy of a survey, when the bearings and distances of all the...
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A Treatise on Surveying: Containing the Theory and Practice : to which is ...

John Gummere - Surveying - 1846 - 566 pages
...the easting to the westing ; or in other words, that the sum of all the northings must be equal to that of the southings, and the sum of the eastings,- to that of the westings. 9 This principle enables us to judge of^the accuracy of a survey, when the bearings and distances of...
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Engineering Field Notes on Parish and Railway Surveying and Levelling, with ...

Henry James Castle - Surveying - 1847 - 454 pages
...that, in going completely round a tract of country, the sum of the northings must be equal to the sum of the southings, and the sum of the eastings to that of the westings. To find the bearing of a line. Plant the instrument over one end of it, level it, set the needle free,...
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A Treatise on Surveying and Navigation: Uniting the Theoretical, Practical ...

Horatio Nelson Robinson - History - 1853 - 334 pages
...the several operations are performed with perfect accuracy, the sum of the northings will be equal to that of the southings, and the sum of the eastings...correctness of the work. But it is not to be expected that the measurements and calculations in ordinary surveying will strictly bear this test. If there...
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