The Theory and Practice of Surveying: Containing All the Instructions Requisite for the Skilful Practice of this Art |
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Page 201
... acres ; because 10 square four - pole chains make an acre , and the remaining figures on the right , are decimal parts of an acre . Multiply the five figures to the right by 4 , cutting 5 figures from the product , and if any figure be ...
... acres ; because 10 square four - pole chains make an acre , and the remaining figures on the right , are decimal parts of an acre . Multiply the five figures to the right by 4 , cutting 5 figures from the product , and if any figure be ...
Page 202
... acre , as before . 2. A square four - pole chain ( that is , a piece of ground four poles or perches every way ) must ... acres . Ch . L. By problem 4. section 1. part 2. 14. 29 are equal to 29.16 perches . 29.16 17496 2916 26244 5832 ...
... acre , as before . 2. A square four - pole chain ( that is , a piece of ground four poles or perches every way ) must ... acres . Ch . L. By problem 4. section 1. part 2. 14. 29 are equal to 29.16 perches . 29.16 17496 2916 26244 5832 ...
Page 203
... Acres 531441 cont . as before 5. 1.10 4 Rood 1/25764 40 Perches 10130560 It is required to lay down a map of this piece of ground , by a scale of twenty perches to an inch . Take 29. 16 the perches of the given side , from the small ...
... Acres 531441 cont . as before 5. 1.10 4 Rood 1/25764 40 Perches 10130560 It is required to lay down a map of this piece of ground , by a scale of twenty perches to an inch . Take 29. 16 the perches of the given side , from the small ...
Page 205
... acres , and also to lay down a map of it , by a scale of 20 perches to an inch . Ch . L. Perches . 14.25-29.00 8.37-17.48 By prob . 4. sect . 1. pt 2 . 15732 3496 A. R. P. 160 ) 506.9200 ( 3 . 0. 27. content . Ch . L. 26 perches , or ...
... acres , and also to lay down a map of it , by a scale of 20 perches to an inch . Ch . L. Perches . 14.25-29.00 8.37-17.48 By prob . 4. sect . 1. pt 2 . 15732 3496 A. R. P. 160 ) 506.9200 ( 3 . 0. 27. content . Ch . L. 26 perches , or ...
Page 207
... Acres 11/0 Ch . Or , 22-44 20 = 40 } perches . 160 ) 1760 ( 11 acres . 160 The converse of this is done by prob . 4. To find the Content of Ground . 207.
... Acres 11/0 Ch . Or , 22-44 20 = 40 } perches . 160 ) 1760 ( 11 acres . 160 The converse of this is done by prob . 4. To find the Content of Ground . 207.
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Common terms and phrases
acres altitude Answer arch azimuth base bearing blank line centre chains and links chord circle circumferentor Co-sec Co-tang column compasses contained decimal difference distance line divided divisions draw east Ecliptic edge feet field-book figures fore four-pole chains geom given number half the sum Horizon glass hypothenuse inches instrument Lat Dep Lat latitude length logarithm measure meridian distance multiplied natural co-sine natural sine needle Nonius number of degrees object observed off-sets opposite parallel parallelogram pegs perches perpendicular plane pole pole star Portmarnock PROB protractor Quadrant quotient radius right angles right line scale of equal SCHOLIUM screw Secant sect Sextant side sights square station stationary distance subtract Sun's survey taken Tang tangent theo theodolite trapezium triangle ABC trigonometry two-pole chains vane versed sine vulgar fraction whence
Popular passages
Page 38 - The angle in a semicircle is a right angle ; the angle in a segment greater than a semicircle is less than a right angle ; and the angle in a segment less than a semicircle is greater than a right angle.
Page 25 - The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; and each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds ; and these into thirds, &c.
Page 197 - RULE. From half the sum of the three sides subtract each side severally.
Page 106 - 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.
Page 27 - The VERSED SINE of an arc is that part of the diameter which is between the sine and the arc. Thus BA is the versed sine of the arc AG.