A Treatise on Plane Surveying |
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Common terms and phrases
acres adjustment alidade angle of elevation Article axis azimuth bearings and distances boundary bubble calculate the area chains clamp column computed correction declination arc deflection determine difference direction divided division line double meridian distance equal equatorial lines error EXAMPLES feet figure Given the bearings height horizontal plane inches included angle indicate instrument intersection latitude and departure length limb line LN located log cot log log sin log magnetic magnetic bearing MAGNETIC DECLINATION main socket marked measure method miles needle object observed obtain parallel perpendicular plate plot polar Polaris polygon position principal meridian random line reading refraction right angles screws side sine proportion solar compass station streets surface survey surveyor tangent tangent-screw telescope tion township tract of land transit transit survey trapezium trapezoid triangle true line vernier whence wires
Popular passages
Page 297 - He shall cause to be surveyed, measured, and marked, without delay, all base and meridian lines through such points and perpetuated by such monuments, and such other correction parallels and meridians as may be prescribed by law or by instructions from the General Land Office in respect to the public lands within his surveying district, to which the Indian title has been or may be hereafter extinguished.
Page 393 - The mistake above referred to is supposed to have found expression in our legislation ; though it is possible that the real intent of the act to which we shall refer is not what is commonly supposed. An act passed in 1869 (Compiled...
Page 297 - ... the sections shall be numbered, respectively, beginning with the number one, in the northeast section, and proceeding west and east alternately, through the township, with progressive numbers, till the thirty-sixth be completed.
Page 391 - WHEN a man has had a training in one of the exact sciences, where every problem within its purview is supposed to be susceptible of accurate solution, he is likely to be not a little impatient when he is told that, under some circumstances, he must recognize inaccuracies, and govern his action by facts which lead him away from the results which theoretically he ought to reach. Observation warrants us in saying that this remark may frequently be made of surveyors.
Page 284 - ... of the tripod. Then carefully turn the arm half way over, until it rests upon the adjuster by the opposite faces of the rectangular blocks, and again observe the position of the sun's image. If it remains between the lines as before, the...
Page 296 - The plats of the townships respectively, shall be marked by subdivisions into lots of one mile square or 640 acres, in the same direction as the external lines, and numbered from 1 to 36...
Page 394 - ... it nevertheless determined the extent of his possessions, and he gained or lost according as the mistake did or did not favor him.
Page 399 - It is always possible when corners are extinct that the surveyor may usefully act as a mediator between parties, and assist in preventing legal controversies by settling doubtful lines. Unless he is made for this purpose an arbitrator by legal submission, the parties, of course, even if they consent to follow his judgment, cannot, on the basis of mere consent, be compelled to do so; but if he brings about an agreement, and they carry it into effect by actually conforming their occupation to his lines,...
Page 392 - A generation has passed away since they were converted into cultivated farms, and few if any of the original corner and quarter stakes now remain. The corner and quarter stakes were often nothing but green sticks driven into the ground. Stones might be put around or over these if they were handy, but often they were not, and the, witness trees must be relied upon after the stake was gone. Too often the first settlers were careless in fixing their lines with accuracy while monuments remained, and...
Page 402 - ... owners are fixed by their purchase; when making that, they have a right to understand that all land between the meander lines, not separately surveyed and sold, will pass with the shore in the government sale and, having this right, anything which their purchase would include under it cannot afterward be taken from them. It is believed, however, that the Federal courts would not recognize the applicability of this rule to large navigable rivers, such as those uniting the Great Lakes. On all the...