 | Pennsylvania. Dept. of Internal Affairs - 1887 - 678 Seiten
...between the tangent line (or its prolongation) and the north line. That angle seems to have been assumed upon the supposed accuracy of their observation noted...a right angle that on a mean from ''our lines the above mentioned post" [the tangent post fixed by their predecessors and by them marked X1[] "is the... | |
 | 198 Seiten
...the Westward or Eastward. On measuring the angle of our last line, with the direction from Newcastle, it was so near a right angle that, on a mean from our Lines, the above mentioned Post is the true Tangent Point. Cha : Mason, Jere : Dixon. In brief "the former Surveyors"... | |
 | 270 Seiten
...the Westward or Eastward. On measuring the angle of our last line, with the direction from Newcastle, it was so near a right angle that, on a mean from our Lines, the above mentioned Post is the true Tangent Point. From the whole we conclude, that the Offset Posts in... | |
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On measuring the angle of our last line, with the direction from Newcastle, it was so near a right angle that, on a mean from our Lines, the above mentioned Post is the true Tangent Point. 