## 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 134

THE HE stationary distance , or merings of

THE HE stationary distance , or merings of

**ground**, are measured either by Gunter's chain of four poles or perches , which consists of 100 links ; ( and this is the most natural division ) or by one of 50 links , which contains two ... Page 136

... each about ten inches long ; and when he has stretched the chain to its full length , he at the extremity thereof sticks one of those pegs perpendicularly in the

... each about ten inches long ; and when he has stretched the chain to its full length , he at the extremity thereof sticks one of those pegs perpendicularly in the

**ground**; and leaving it there , he draws on the chain till the binder ... Page 140

Since some surveys are taken by a four - pole , and others by a two - pole chain ; and as

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 survey a piece of

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 146

5. and on the side of the field - book against that station , we make an asterisk , thus * , or any other mark , to signify that to be an external angle , or one measured out of the

5. and on the side of the field - book against that station , we make an asterisk , thus * , or any other mark , to signify that to be an external angle , or one measured out of the

**ground**. Proceed we then as before , from Eto F , to G ...### 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.