A Treatise on Surveying: Comprising the Theory and the Practice, Volume 1D. Appleton, 1897 - Surveying |
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Common terms and phrases
acres adjustment axis back-sight bearing bisect boundary bubble calculated celestial sphere circle clamp compass corner correct Cosine Cotang course cross-hairs declination desired determined diagonal difference direction distance divided division draw drawn east equal feet field field-notes figure given line given point ground half height horizontal inch instrument intersection latitudes and departures length line of sight longitude MAGNETIC BEARINGS main socket marked meander measured method miles move needle object obtained offsets parallel passing perpendicular plane plat plate plumb-line principal meridian protractor quadrilateral radius reading right angles scale screws side similar triangles Sine solar compass square chains stake station straight line subtract survey surveyor tangent telescope tion township transit trapezoid triangle tube turn vernier vernier scale vertical vertical circle
Popular passages
Page 345 - AN ACT providing for the sale of the lands of the United States in the Territory NORTHWEST of the Ohio, and above the mouth of the Kentucky river...
Page 401 - Every circumference of a. circle, whether the circle be large or small, is supposed to be divided into 360 equal parts called degrees. Each degree is divided into 60 equal parts called minutes, and each minute into 60 equal parts called seconds.
Page 301 - And in all cases where the exterior lines of the townships, thus to be subdivided into sections or half sections, shall exceed or shall not extend six miles, the excess or deficiency shall be specially noted, and added to or deducted from the western and northern ranges of sections or half sections in such township, according as the error may be in. running the lines from east to west, or from south to north.
Page 401 - Every circumference is regarded as being divided into 360 equal parts, called degrees. Each degree is divided into 60 equal parts, called minutes^ and each minute into 60 seconds. These divisions are indicated by the marks ° ' ". Thus 28 degrees, 17 minutes, and 49 seconds, are written '28° 17' 49'' Fractions of a second are best expressed decimally.
Page 402 - The versed-sine of an arc, AM, is the distance, AP, comprised between the origin of the arc and the foot of the sine. It is consequently equal to the difference between the radius and the sine. The Trigonometrical lines are usually written in an abbreviated form. Calling the arc AM =sa, we write, MP = sin.
Page 311 - ... the foot of all remarkable hills and ridges, with their courses, and estimated height in feet, above the level land of the surrounding country, or above the bottom lands, ravines, or waters near which they are situated.
Page 317 - Besides the ordinary notes taken on line, (and which must always be written down on the spot, leaving nothing to be supplied by memory,) the deputy will subjoin, at the conclusion of his book, such further description or information touching any matter or thing connected with the township, (or other survey,) which he may be able to afford, and may deem useful or necessary to be known — with a general description of the township in the aggregate, as respects the face of the country, its soil and...
Page 345 - The public lands shall be divided by north and south lines run according to the true meridian, and by others crossing them at right angles, so as to form townships of six miles square...
Page 315 - At all township corners, and at all section corners, on range or township lines, four bearing trees are to be marked in this manner, one in each of the adjoining sections. At interior section corners four trees, one to stand within each of the four sections to which such corner is common, are to be marked in manner aforesaid, if such be found. From quarter section and meander corners two bearing trees are to be marked, one within each of the adjoining sections.