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

### From inside the book

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Page 1

... or representa tion of the field , or tract , which he

... or representa tion of the field , or tract , which he

**surveys**; and fourthly , to the calculation of its area , or superficial content When this art is employed in observing and delineating Coasts and Harbours , in determining their ... Page 136

The inaccuracies of most

The inaccuracies of most

**surveys**arise from bad chaining , that is , from straying out of the right line , as well ... was not previously convinced ; since the success of the**survey**, in a grest measure , depends on his care and skill . Page 140

Since some

Since some

**surveys**are taken by a four - pole , and others by a two - pole chain ; and as ground for houses is measured by feet , we will shew how to reduce one to the other , in the following problems . PROB . Page 145

I. To

I. To

**survey**a piece of ground , by going round it ; and the method of taking the angles of the field , by the chain only . Pl . 6. fig . 6 . Let ABCDEFG be a piece of ground to be surveyed : begioning at the point A , let one chain be ... Page 147

... for these must be expressed in the map . it . In a

... for these must be expressed in the map . it . In a

**survey**of a town - land , or estate , it is sufficient to mention only the circumjacent town - lands , without the occupiers ' names : but when a part OF THE CHAIN . 147.### 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 Hence 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 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 199 - 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.