A Treatise of Practical Surveying: Which is Demonstrated from Its First Principles ... |
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Σελίδα 64
If from 10 , 20 , 30 , & c . the divisions of the quadrant BD , there be let fall
perpendiculars , let these be transferred to the ... A .we describe the arcs 10 , 10 :
20 , 20 : 30 , 30 , & c . from every division of the arc AD ; we shall have a line of
chords .
If from 10 , 20 , 30 , & c . the divisions of the quadrant BD , there be let fall
perpendiculars , let these be transferred to the ... A .we describe the arcs 10 , 10 :
20 , 20 : 30 , 30 , & c . from every division of the arc AD ; we shall have a line of
chords .
Σελίδα 66
... and are thus counted : every large division is 10 , every one of the subdivisions
is i , and every one downwards is one tenth of a perch ; or sometimes thus , every
large division is called 100 , every subdivision 10 , and every one downwards ...
... and are thus counted : every large division is 10 , every one of the subdivisions
is i , and every one downwards is one tenth of a perch ; or sometimes thus , every
large division is called 100 , every subdivision 10 , and every one downwards ...
Σελίδα 178
... on the protractor's edge will be one two - pole chain ; } a division will be 25
links , and of a division will be 12 ; links . If your map is to be laid down by a scale
of 20 perches to an inch two divisions will be one twopole chain ; one division will
...
... on the protractor's edge will be one two - pole chain ; } a division will be 25
links , and of a division will be 12 ; links . If your map is to be laid down by a scale
of 20 perches to an inch two divisions will be one twopole chain ; one division will
...
Σελίδα 179
How many links in a division , if a map be laid down by a scale of 8 perches to an
inch ? 25 8 210 ) 2010 10 links . Answer . 2. How many links in a division , if a
map a be laid down by a scale of 10 perches to an inch ? 25 10 e 210 ) 2510
12.5 ...
How many links in a division , if a map be laid down by a scale of 8 perches to an
inch ? 25 8 210 ) 2010 10 links . Answer . 2. How many links in a division , if a
map a be laid down by a scale of 10 perches to an inch ? 25 10 e 210 ) 2510
12.5 ...
Σελίδα 268
When the whole is protracted , and you are satisfied of the closes of the particular
divisions , cast up each severally , and ... 1 , 2 , 3 , 4 , & c . in every particular field
or division ; let every tenant's particular holding be distinguished by a different ...
When the whole is protracted , and you are satisfied of the closes of the particular
divisions , cast up each severally , and ... 1 , 2 , 3 , 4 , & c . in every particular field
or division ; let every tenant's particular holding be distinguished by a different ...
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Δεν εντοπίσαμε κριτικές στις συνήθεις τοποθεσίες.
Συχνά εμφανιζόμενοι όροι και φράσεις
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
Δημοφιλή αποσπάσματα
Σελίδα 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.
Σελίδα 207 - ... that triangles on the same base and between the same parallels are equal...
Σελίδα 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.
Σελίδα 43 - Triangles upon equal bases, and between the same parallels, are equal to one another.
Σελίδα 103 - TO THEIR DIFFERENCE ; So IS THE TANGENT OF HALF THE SUM OF THE OPPOSITE ANGLES', To THE TANGENT OF HALF THEIR DIFFERENCE.
Σελίδα 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.
Σελίδα 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.
Σελίδα 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.
Σελίδα 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°.
Σελίδα 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.
Πληροφορίες βιβλιογραφίας
| Τίτλος | A Treatise of Practical Surveying: Which is Demonstrated from Its First Principles ... |
| Συγγραφέας | Robert Gibson |
| Έκδοση | 3 |
| Εκδότης | Lewis Nichols, 1806 |
| Πρωτότυπο από | το Πανεπιστήμιο του Μίτσιγκαν |
| Ψηφιοποιήθηκε στις | 26 Μάιος 2007 |
| Μέγεθος | 452 σελίδες |
| Εξαγωγή αναφοράς | BiBTeX EndNote RefMan |