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

### From inside the book

Page 14

... so that the

... so that the

**fourth**, or required quantity , may be as much greater , or less than the third , as the second term is greater , or less than the first , then multiply the second and third terms together , and divide the product by the ... Page 16

4096 = 8 = biquadrate or 8 [

4096 = 8 = biquadrate or 8 [

**fourth**power . 32768 = 85 = Answer . EXAMPLES FOR EXERCISE . What is the second power of 3.05 ? Ans . 9.3025 What is the third power of 85.3 ? Answer , 620650.477 What is the**fourth**power of .073 ? Page 17

... a particular number of times , produces the given power ; thus if 81 be the given number , or power , its square , or second root is 9 ; because 9x9 = 9 = 81 ; and 3 is its biquadrate , or

... a particular number of times , produces the given power ; thus if 81 be the given number , or power , its square , or second root is 9 ; because 9x9 = 9 = 81 ; and 3 is its biquadrate , or

**fourth**root , because 3x3x3x3 = 34 = 81 . Page 23

... root of 999 Ans . = 9.9966 + Required the

... root of 999 Ans . = 9.9966 + Required the

**fourth**root of 97.41 Ans . = 3.1416 Required the cube root of .937 Ans..33322 + Required the cube root of 2 Ans # 1.2599 + Required the seventh root of ®1035.8 Answer = [ 4.1454 SECTION II . Page 25

... c .; that is , divide the first reserved quotient by 1 , the second by 3 , the third by 5 , the

... c .; that is , divide the first reserved quotient by 1 , the second by 3 , the third by 5 , the

**fourth**by 7 , & e . and let these quotients be written orderly under one another ; add them together and their sum will be a logarithm .### 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.