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

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Page 12

320 ) 200.00.625 1920 decimal sought : 800 640 1600 1600 Reduce 21

320 ) 200.00.625 1920 decimal sought : 800 640 1600 1600 Reduce 21

**minutes**54 seconds to the decimal of a degree . Ans . .365 Reduce 056 of a pole to the ... Page 39

... and each degree into 60 equal parts called

... and each degree into 60 equal parts called

**minutes**, and each**minute**into 60 equal parts caled seconds , and these into thirds , fourths , & c . these ... Page 82

... longer than the intermediate adjacent ones , these are whole degrees ; the shorter ones , or those of the third order , are 30

... longer than the intermediate adjacent ones , these are whole degrees ; the shorter ones , or those of the third order , are 30

**minutes**. Page 97

The first of these divisions is sometimes divided into 40 equal parts , each representing 15 '

The first of these divisions is sometimes divided into 40 equal parts , each representing 15 '

**minutes**or miles . The extent from the brass pin on the scale ... Page 292

... distance from the instrument to the corresponding staff ; the curvature of the earth , and the

... distance from the instrument to the corresponding staff ; the curvature of the earth , and the

**minute**errors of the instrument will both be destroyed .### 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.