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

### From inside the book

Results 1-5 of 38

Page 14

3 = number of

3 = number of

**feet**in a [ yard . 2.0625 12 = number of inches [ in a foot . .7500 12 = number of lines in [ an inch . 9.0000 The answer here is 2**feet**9 lines . What is the value of .084 of a furlong ? Ans . 3 per . I yd . 2 ft . Page 80

Thus a sector of six inches , when the legs are close together , forms a rule of 12 inches when opened ; and a foot sector is two

Thus a sector of six inches , when the legs are close together , forms a rule of 12 inches when opened ; and a foot sector is two

**feet**long , when opened to its greatest extent . In describing the lines usually placed on this inst ... Page 86

Take the given line between the compasses ; apply the two

Take the given line between the compasses ; apply the two

**feet**transversely to the scale concerned , and slide the**feet**along till they both rest on like divisions on both legs ; then will those divisions shew the degrees and parts ... Page 88

They are , indeed , nothing more than a measure in miniature for laying down upon paper , & c . any known measure , as chains , yards ,

They are , indeed , nothing more than a measure in miniature for laying down upon paper , & c . any known measure , as chains , yards ,

**feet**, & c . each part on the scale answering to one foot , one yard , & c . and the plan will be ... Page 89

To adapt these scales to

To adapt these scales to

**feet**and inches , the first primary division is often duodecimally divided by an upper line ; therefore , to lay down any number of**feet**and inches , as for instance , eight**feet**eight inches , extend the ...### What people are saying - Write a review

We haven't found any reviews in the usual places.

### 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.