Surveying and Navigation, with a Preliminary Treatise on Trigonometry and MensurationVan Antwerp, Braggs & Company, 1864 - 490 páginas |
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Página 219
... corner . These trees are marked by a blaze in which is marked the number of the township , range , and section . A ... corner trees , stones , nor witness trees are available , corners may be marked by posts , mounds , and witness . pits ...
... corner . These trees are marked by a blaze in which is marked the number of the township , range , and section . A ... corner trees , stones , nor witness trees are available , corners may be marked by posts , mounds , and witness . pits ...
Página 220
... corner is common to four townships , the post is set so as to present the angles in the direction of the line ; and the number of the township , range , and section must be marked on the side facing , and six notches cut on each of the ...
... corner is common to four townships , the post is set so as to present the angles in the direction of the line ; and the number of the township , range , and section must be marked on the side facing , and six notches cut on each of the ...
Página 221
... corner is common to four townships , there will be four pits placed lengthwise on the lines ; but if the corner is ... Section Corners . Section corners are established at intervals of 80 chains or 1 mile , and are perpetuated by the ...
... corner is common to four townships , there will be four pits placed lengthwise on the lines ; but if the corner is ... Section Corners . Section corners are established at intervals of 80 chains or 1 mile , and are perpetuated by the ...
Página 222
... Section posts must be witnessed by trees , one in each section , or , in the absence of trees , by pits 18 inches square and 12 inches deep . 2. Section corner mounds are 4 feet in diameter at the base , and 2 feet high . The post must ...
... Section posts must be witnessed by trees , one in each section , or , in the absence of trees , by pits 18 inches square and 12 inches deep . 2. Section corner mounds are 4 feet in diameter at the base , and 2 feet high . The post must ...
Página 228
... corner on the base line west of the meridian . This is the S. W. corner of T. 1 N. , R. 1 W. , and is marked 1 in the diagram . Measure thence due north 480 chains , establishing the quarter section and section corners , to 2 , at which ...
... corner on the base line west of the meridian . This is the S. W. corner of T. 1 N. , R. 1 W. , and is marked 1 in the diagram . Measure thence due north 480 chains , establishing the quarter section and section corners , to 2 , at which ...
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Términos y frases comunes
a. c. log ABCD adjacent angles adjacent sides altitude angle is equal arc increases base line C₁ chains clamp co-sine compass cosec Cotang denote departure diameter difference of level divided east escribed circles Examples feet field notes Find the angle find the area formulas frustum given side height hence horizontal hypotenuse included angle increases from 90 instrument intersection latitude links dist logarithm longitude M.
M. Cosine M.
M. Sine mantissa meander miles minus needle negative number corresponding offsets opposite angle parallel sailing parallelogram perpendicular plane plane sailing positive quarter section corner radius rhumb line right angle sailing secant ship side adjacent sin A sin solar compass spherical triangle stake standard parallel station survey surveyor Tang tangent telescope trapezoid variation vernier versed-sine vertex vertical Willamette Meridian
Pasajes populares
Página 110 - I. The sine of the middle part is equal to the product of the tangents of the adjacent parts.
Página 34 - If two triangles have two angles and the included side of the one, equal to two angles and the included side of the other, each to each, the two triangles will be equal.
Página 258 - All the corners marked in the surveys, returned by the surveyor general, or by the surveyor of the lands south of the state of Tennessee, respectively, shall be established as the proper corners of sections, or subdivisions of sections, which they were intended to designate ; and the corners of half and quarter sections, not marked on said surveys, shall be placed as nearly as possible equidistant from those two corners which stand on the same line.
Página 22 - The logarithm of any power of a number is equal to the logarithm of the number multiplied by the exponent of the power.
Página 19 - To Divide One Number by Another, Subtract the logarithm of the divisor from the logarithm of the dividend, and obtain the antilogarithm of the difference.
Página 144 - Any angle is greater than the difference between 180° and the sum of the other two angles.
Página 124 - That is, the sines of the sides of a spherical triangle are proportional to the sines of the opposite angles.
Página 65 - C' (89) (90) (91) (92) (93) 112. In any plane triangle, the sum of any two sides is to their difference as the tangent of half the sum of the opposite angles is to the tangent of half their difference.
Página 145 - A cos 6 = cos a cos c + sin a sin c cos B cos c = cos a cos 6 + sin a sin 6 cos C Law of Cosines for Angles cos A = — cos B...
Página 162 - Now, since the areas of similar polygons are to each other as the squares of their homologous sides...