## A Compendious System of Practical Surveying, and Dividing of Land: Concisely Defined, Methodically Arranged, and Fully Exemplified : the Whole Adapted for the Easy and Regular Instruction of Youth, in Our American Schools |

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Side

Perhaps some may object to the uniform mode I have adopted, in finding the

none more easy, than the one I have chosen. And as I have found by experience,

...

Perhaps some may object to the uniform mode I have adopted, in finding the

**meridian distances**. I know that some use other methods; but I apprehend there isnone more easy, than the one I have chosen. And as I have found by experience,

...

Side 135

... or a cipher, if the additions and subtractions be right; beeause there is just as

much added as subtracted, which will become easy and familiar by a little

practice, and instruction from the teacher. - , Then multiply each upper

... or a cipher, if the additions and subtractions be right; beeause there is just as

much added as subtracted, which will become easy and familiar by a little

practice, and instruction from the teacher. - , Then multiply each upper

**meridian****distance**... Side 155

Then in the next place, find the

the column of eastings or westings, - as will admit of a continual addition of one,

and subtraction of the other, by which means we avoid the inconvenience of ...

Then in the next place, find the

**meridian distances**, by choosing such a place inthe column of eastings or westings, - as will admit of a continual addition of one,

and subtraction of the other, by which means we avoid the inconvenience of ...

Side 156

course and distance, as in the following example, observing to add an half of the

differences to the numbers in the lesser ... .2| 1 The latitudes and departures

being thus balanced, proceed to insert the

method, ...

course and distance, as in the following example, observing to add an half of the

differences to the numbers in the lesser ... .2| 1 The latitudes and departures

being thus balanced, proceed to insert the

**meridian distances**by the abovemethod, ...

Side 157

Therefore, by placing 46.0, the east departure belonging to this station in the

column of

the westings, according to the rule already mentioned, we shall find that at station

8, ...

Therefore, by placing 46.0, the east departure belonging to this station in the

column of

**meridian distances**, and proceeding to add the eastings and subtractthe westings, according to the rule already mentioned, we shall find that at station

8, ...

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A Compendious System of Practical Surveying, and Dividing of Land: Concisely ... T. Hamilton,S. Hilles Uten tilgangsbegrensning - 1814 |

A Compendious System of Practical Surveying, and Dividing of Land: Concisely ... Zachariah Jess,Evans 35670 Ingen forhåndsvisning tilgjengelig - 2016 |

### Vanlige uttrykk og setninger

40 perches acres angle opposite base BC bearing and distance centre chains chord of 60 circle Co-sec Co-sine Co-tang column compasses Dep Lat describe an arch diameter diff difference of latitude Dist divided division line double area East ExAMPLE extent will reach feet find the angles find the area find the bearing find the Content find the difference find the hypothenuse find the logarithm foot GEOMETRICAL hypothenuse 121 intersect JVote Lat Dep latitude and departure left hand line of numbers line of sines meridian distances Multiply North Oblique Angled Trigonometry opposite angle parallelogram perpen perpendicular BC piece of ground PROBLEM radius 90 Rhombus right angled triangle Right Angled Trigonometry RULE scale of equal Secant side BC South square perches square root subtracted sun’s Tang tangent Trapezium TRAVERSE TABLE West

### Populære avsnitt

Side 50 - ЙО, 30, &c., to the left hand, where it ends at 87 degrees. This line. with the line of equal parts, marked (EP), under it, are used together, and only in Mercator's Sailing. The upper line contains the degrees of the meridian, or latitude in a Mercator's chart, corresponding to the degrees of longitude on the lower line. The use of this Scale in solving the usual problems of Trigonometry...

Side 80 - To the length of the given side ; So is the sine of the angle opposite the required side. To the length of the required side.

Side 4 - 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, etc.

Side 44 - I tenth part ; and the next 2, 2 tenth parts; and 10 at the end will be but one whole number or integer. As the figures are increased or diminished in their value, so in like manner must all the intermediate strokes or subdivisions be increased or diminished ; that is, if the first...

Side 47 - EXAMPLE. If the diameter of a circle be 7 inches, and the circumference 22, what is the circumference of another circle, the diameter of which is 14 inches ? Extend from 7 to 22, that extent will reach from 14 to 44 the same way.

Side 217 - Then if the true and magnetic amplitudes be both north or both south their difference is the variation, but if one be north and the other south their sum is the variation ; and to know whether it be easterly or westerly, suppose the observer looking towards that point of the compass representing the magnetic amplitude; then if the true amplitude be to the...

Side 220 - Ъои) on the east, or both on the west side of the meridian, their difference is the variation : but if one be on the east, and the other on the west side of the meridian, their sum is the variation ; and to know if it be east or west, suppose the observer looking towards that point of the compass representing the magnetic azimuth ; then if the true •azimuth be to the right of the magnetic, the variation is east, but if the true be to the left of the magnetic, the variation is west. EXAMPLE....

Side 215 - 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.

Side 219 - . 2. Subtract the Sun's declination from 90«, when the latitude and declination are of the same name, or add it to 90*, when they are of contrary names ; and the sum, or remainder, will be the Sun's polar distance. , 3. Add together the Sun's polar distance, the latitude of the place, and the altitude of the Sun; take the difference between half their sum and the polar distance, and note the remainder.

Side 49 - ... degrees of the quadrant, begins at the right hand against 90° on the sines, and from thence is numbered towards the left hand thus : 10, 20...