## A Treatise of Practical Surveying: Which is Demonstrated from Its First Principles ... |

### Dentro del libro

Resultados 1-5 de 5

Página 150

Robert Gibson. and again , the like distance from B in a direct line towards C ,

where let also another peg be left , as at e ; the distance from e to f is to be

inserted in the

station No.

Robert Gibson. and again , the like distance from B in a direct line towards C ,

where let also another peg be left , as at e ; the distance from e to f is to be

inserted in the

**field**-**book**in the second column , under angles , in a line withstation No.

Página 158

Having taken the degrees or bearing of the first stationary line AB , let the line be

measured , and the length thereof in chains and links be inserted in the third

column of your

Having taken the degrees or bearing of the first stationary line AB , let the line be

measured , and the length thereof in chains and links be inserted in the third

column of your

**field**-**book**, under the title of distances , opposite to station No. 1 . Página 234

angular points between 1 and 2 , and take the bearing and length of the

stationary line 1 , 2 , and insert them in your

2 , stop at d opposite the angular point a , and in your

distance ...

angular points between 1 and 2 , and take the bearing and length of the

stationary line 1 , 2 , and insert them in your

**field**-**book**: but in chaining from 1 to2 , stop at d opposite the angular point a , and in your

**field**-**book**insert thedistance ...

Página 236

posite to the sixth station in your

the index to the point p , and insert its bearings on the left side of the

opposite to the sixth station , annexing thereto the words , Int . for boundary ; and

...

posite to the sixth station in your

**field**-**book**with the other bearing ; then directthe index to the point p , and insert its bearings on the left side of the

**field**-**book**,opposite to the sixth station , annexing thereto the words , Int . for boundary ; and

...

Página 268

... to make a note on the side of your

boundary of any particular field or holding intersects or meets the surround ; then

proceed from any one of those stations , and in your

from ...

... to make a note on the side of your

**field**-**book**at every station where theboundary of any particular field or holding intersects or meets the surround ; then

proceed from any one of those stations , and in your

**field**-**book**say , “ proceedfrom ...

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### Términos y frases comunes

acres angle Answer base bearing called centre chains chord circle Co-sec Co-sine Co-tang column contained decimal difference direct distance divided division draw drawn east edge equal EXAMPLE feet field field-book figures four four-pole fourth give given greater ground half height Hence inches laid land Lat Dep length less logarithm manner measure method multiplied needle object observe opposite parallel perches perpendicular plain plane Plate pole prob PROBLEM proportion quantity quotient radius reduce remainder right angles right line root scale Secant sect side sights sine square station suppose survey taken Tang tangent theo THEOREM third triangle triangle ABC true turn variation whence whole

### Pasajes populares

Página 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.

Página 207 - ... that triangles on the same base and between the same parallels are equal...

Página 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.

Página 43 - Triangles upon equal bases, and between the same parallels, are equal to one another.

Página 103 - TO THEIR DIFFERENCE ; So IS THE TANGENT OF HALF THE SUM OF THE OPPOSITE ANGLES', To THE TANGENT OF HALF THEIR DIFFERENCE.

Página 31 - Figures which consist of more than four sides are called polygons ; if the sides are all equal to each other, they are called regular polygons. They sometimes are named from the number of. their sides, as a five-sided figure is called a pentagon, one of six sides a hexagon, &"c.

Página 31 - ... they are called regular polygons. They sometimes are named from the number of their sides, as a five-sided figure is called a pentagon, one of. six sides a hexagon, &c. but if their sides are not equal to each other, then they are called irregular polygons, as an irregular pentagon, hexagon, &c.

Página 45 - The hypothenuse of a right-angled triangle may be found by having the other two sides ; thus, the square root of the sum of the squares of the base and perpendicular, will be the hypothenuse. Cor. 2. Having the hypothenuse and one side given to find the other; the square root of the difference of the squares of the hypothenuse and given side will be the required side.

Página 265 - As the length of the whole line, Is to 57.3 Degrees,* So is the said distance, To the difference of Variation required. EXAMPLE. Suppose it be required to run a line which some years ago bore N. 45°.

Página 32 - Things that are equal to one and the same thing are equal to one another." " If equals be added to equals, the wholes are equal." " If equals be taken from equals, the remainders are equal.