Surveying and Navigation, with a Preliminary Treatise on Trigonometry and MensurationVan Antwerp, Braggs & Company, 1864 - 490 páginas |
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Página 187
... township lines , and another for subdivision or section lines , as designated on the title - page . A good pencil , number 2 or 3 , well sharpened , should be used , so that the notes may be legible . A temporary book may be used on the ...
... township lines , and another for subdivision or section lines , as designated on the title - page . A good pencil , number 2 or 3 , well sharpened , should be used , so that the notes may be legible . A temporary book may be used on the ...
Página 213
... township , requires a change of 5 ' 12 " on the latitude arc . In running east and west lines , the sights are set at 90 ° on the limb , and the line run at right angles to the meridian ; but this line , if sufficiently produced , would ...
... township , requires a change of 5 ' 12 " on the latitude arc . In running east and west lines , the sights are set at 90 ° on the limb , and the line run at right angles to the meridian ; but this line , if sufficiently produced , would ...
Página 216
... Townships . In the rectangular system of surveying the public lands , adopted by the government , two principal lines —an east and west line , called a base line , and a north and south line , called a principal meridian - are estab ...
... Townships . In the rectangular system of surveying the public lands , adopted by the government , two principal lines —an east and west line , called a base line , and a north and south line , called a principal meridian - are estab ...
Página 217
... townships on the north and south , are called township lines . A township marked thus , T. 5 N. , R. 4 W. , read township five north , range four west , would be in the fifth tier north of the base line , and in the fourth tier west of ...
... townships on the north and south , are called township lines . A township marked thus , T. 5 N. , R. 4 W. , read township five north , range four west , would be in the fifth tier north of the base line , and in the fourth tier west of ...
Página 218
... township lines . ij , kl , etc. , range lines . 8 , u , w , etc. , standard corners . j , l , n , etc. , closing cor- B ners . t 21 $ B A ' г P n l V d እ q 212 e a The distances js , lu , etc. , are measured and recorded in the field ...
... township lines . ij , kl , etc. , range lines . 8 , u , w , etc. , standard corners . j , l , n , etc. , closing cor- B ners . t 21 $ B A ' г P n l V d እ q 212 e a The distances js , lu , etc. , are measured and recorded in the field ...
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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...