## The Theory and Practice of Surveying: Containing All the Instructions Requisite for the Skilful Practice of this Art |

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Page 106

The first and third terms in the foregoing proortions , being of a like nature , and those of the and the proportions being

The first and third terms in the foregoing proortions , being of a like nature , and those of the and the proportions being

**direct**ones , it follows ; at if ... Page 137

... the eye can

... the eye can

**direct**the horizontal position near enough , but if greater aceuracy T were required , a quadrant applied to the chain , OF THE CHAIN . 187. Page 145

Let ABCDEFG be a piece of ground to be surveyed : begioning at the point 4 , let one chain be laid in a

Let ABCDEFG be a piece of ground to be surveyed : begioning at the point 4 , let one chain be laid in a

**direct**line from A , towards G , where let a peg be ... Page 146

Being now arrived at B , let one chain be laid in a

Being now arrived at B , let one chain be laid in a

**direct**line from B towards 4 , where let a peg be left , as at f , and again , the like distance from B ... Page 158

Set up your instrument at the angular point , and thence

Set up your instrument at the angular point , and thence

**direct**the sights along each leg of the angle , and note down their respective bearings , as before ...### What people are saying - Write a review

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### Common terms and phrases

acres altitude angle Answer arch base bearing called centre chains chord circle Co-sec Co-sine Co-tang column compasses contained decimal degrees Dep Lat difference direct Dist distance divided divisions draw drawn east edge equal EXAMPLE extended feet figures fixed four fourth give given glass greater ground half hand height Horizon inches laid land Lat Dep latitude length less logarithm manner marked measure meridian method minutes multiplied natural object observed opposite parallel perches perpendicular plane pole PROB proportion Quadrant quotient radius reduce remainder right angles right line root rule scale Secant sect side sights sine square station Sun's suppose survey taken Tang tangent theo third triangle true whole

### Popular passages

Page 40 - 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 27 - 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 201 - RULE. From half the sum of the three sides subtract each side severally.

Page 2 - Then multiply the second and third terms together, and divide the product by the first term: the quotient will be the fourth term, or answer.

Page 108 - 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 2 - ... then multiply the second and third terms together, and divide the product by the first term, and the quotient will be the answer ; — in the same denomination with the third term.

Page 29 - 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.