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

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Mensuration of

Mensuration of

**Natural**Sines 71 heighits 179 Points of the Compass 82 Of Distances 194 Traverse Table 83 3. Mensuration of Areas 200 General Method 232 Mean Refraction ... Page

Mensuration of

Mensuration of

**Natural**Sines 71 heights 179 Points of the Compass 82 Of Distances 194 Traverse Table 3. Mensuration of Areas 200 General Method 232 Mean Refraction Pennsylvania Method 246 Sun's Parallax 4. Page 29

For the arrangement of Lngarithms in a Table , the method of finding the Logarithm of any

For the arrangement of Lngarithms in a Table , the method of finding the Logarithm of any

**natural**number , and of finding the**natural**number corresponding to any given Logarithm , therein : likewise for particular. OF LOGARITHMS . 29. Page 30

Having found the Logarithms of the given numbers in the Table , add them together , and their sum is the Logarithm of the product ; which Logarithm , being found in the Table , will give a

Having found the Logarithms of the given numbers in the Table , add them together , and their sum is the Logarithm of the product ; which Logarithm , being found in the Table , will give a

**natural**number , that is , the product required ... Page 31

From the Logarithm of the Dividend subtract the Logarithm of the Divisor , and the remainder will be the Logarithm , whose corresponding

From the Logarithm of the Dividend subtract the Logarithm of the Divisor , and the remainder will be the Logarithm , whose corresponding

**natural**number will be the Quotient required . In this operation , the Index of the Divisor must be ...### 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.