Practical Surveying: A Text-book for Students Preparing for Examinations Or for Survey-work in the Colonies |
From inside the book
Results 1-5 of 26
Page vi
... Wires - Line of Collimation - Adjustment of the Level - Adjustment for Collimation -Adjustment for Parallax - Reflecting Mirror - Levelling Staff- Aneroid Barometer - Stadiometer - Omnimeter · PAGE 29-83 CHAPTER IV . TRIGONOMETRY AS ...
... Wires - Line of Collimation - Adjustment of the Level - Adjustment for Collimation -Adjustment for Parallax - Reflecting Mirror - Levelling Staff- Aneroid Barometer - Stadiometer - Omnimeter · PAGE 29-83 CHAPTER IV . TRIGONOMETRY AS ...
Page xii
... WIRES 130 73 CURVATURE 215 172 CURVES , OFFICE . 299 237 CURVES , SETTING OUT . 268 to 284 210 to 227 D. DATUM DATUM , ORDNANCE MARK 218 178 226 180 DIAPHRAGM . 98 , 99 , 129 51 , 73 DIAMETER OF CIRCLE . Sketch 85 DIRECTION OF LINE ...
... WIRES 130 73 CURVATURE 215 172 CURVES , OFFICE . 299 237 CURVES , SETTING OUT . 268 to 284 210 to 227 D. DATUM DATUM , ORDNANCE MARK 218 178 226 180 DIAPHRAGM . 98 , 99 , 129 51 , 73 DIAMETER OF CIRCLE . Sketch 85 DIRECTION OF LINE ...
Page 2
... wire , are composed each of 100 links ; in the former case each link being equal to one foot in length , and in the latter 7.92 in . , or 1-100th part of 66 feet , being the length of the link . It will be manifest that the 100 - feet ...
... wire , are composed each of 100 links ; in the former case each link being equal to one foot in length , and in the latter 7.92 in . , or 1-100th part of 66 feet , being the length of the link . It will be manifest that the 100 - feet ...
Page 3
... wire , and are used to mark upon the ground the end of each chain . The reason why ten is the number adopted is that ten chains ( 66 ft . ) equal one furlong , and eight furlongs or eighty chains equal one mile . Again , an acre of land ...
... wire , and are used to mark upon the ground the end of each chain . The reason why ten is the number adopted is that ten chains ( 66 ft . ) equal one furlong , and eight furlongs or eighty chains equal one mile . Again , an acre of land ...
Page 10
... wire links . It may be stated that a Government standard of all kinds of English measures has been established in Trafalgar Square , by means of permanent bronze marks , let into the granite plinth of the terrace wall in front of the ...
... wire links . It may be stated that a Government standard of all kinds of English measures has been established in Trafalgar Square , by means of permanent bronze marks , let into the granite plinth of the terrace wall in front of the ...
Other editions - View all
Common terms and phrases
A B C accuracy accurately adjusted arrow axis back and fore back-sight beam compasses bench-mark boundaries centre chain chain-line check-lines chords clamped clinometer column commencement compass consequently Cosec cosine cross-wires curvature curve datum direction distance divided end of line equal feet fence field-book figures fixed fore sights ground hedge horizontal hypotenuse inches instrument intermediate intersection length level-book line A B line of collimation logarithm magnetic north mark means measured necessary observed offsets parallel plates pencil perpendicular plane plotted plumb-bob position post-and-rail fence quadrant radius reading reference right angles scale screw seen sextant side sine sketch slope square staff station straight line streets survey surveyor take the angle taken tangent tangential angle telescope theodolite tion traverse triangle trigonometry vernier vertical whilst Wimbledon Park wires zero
Popular passages
Page 86 - If two triangles have two sides of the one equal to two sides of the...
Page 89 - IF a straight line fall upon two parallel straight lines, it makes the alternate angles equal to one another; and the exterior angle equal to the interior and opposite upon...
Page 85 - When a straight line standing on another straight line makes the adjacent angles equal to one another, each of the angles is called a right angle ; and the straight line which stands on the other is called a perpendicular to it.
Page 61 - When you have proved that the three angles of every triangle are equal to two right angles...
Page 85 - A circle is a plane figure contained by one line, which is called the circumference, and is such, that all straight lines drawn from a certain point within the figure to the circumference are equal to one another : 16.
Page 92 - In any right-angled triangle, the square which is described on the side subtending the right angle is equal to the sum of the squares described on the sides which contain the right angle.
Page 116 - In any plane triangle, as the sum of the sides about the vertical angle is to their difference, so is the tangent of half the sum of the angles at the base to the tangent of half their difference.
Page 85 - A plane rectilineal angle is the inclination of two straight lines to one another, which meet together, but are not in the same straight line.
Page 127 - As the sum of the two given sides Is to their difference, So is the tangent of half the sum of their opposite angles To the tangent of half the difference of the same angles.
Page 85 - A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference.