Handbook for Government Surveyors

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R.E.E. Rogers, government printer, 1914 - Surveying - 154 pages
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Page 18 - The light reflected from the paper will show the cross hairs in the telescope of the theodolite. Then, let the vertical spider's line be brought exactly upon the polestar, and, if it is an eastern elongation that is to be observed, and the star has not yet reached the most easterly point, it will move from the line toward the east, and the reverse when the elongation is west. At the...
Page 134 - Sun from the meridian, at the instant when the true point of intersection of the ecliptic and equator (called the first point of Aries) is on the meridian of Greenwich ; and as the distance of the first point of Aries from the meridian, at the instant the mean Sun is on the meridian, is denominated Sidereal Time at Mean Noon, this may, by analogy, be termed the Mean Time at Sidereal Noon. It is the time...
Page 113 - Act contained shall take away or affect any right of action or other remedy which any person may have in respect of any loss or damage occasioned by any fire or for any trespass committed.
Page 134 - ... it may also be regarded as the arc of the equinoctial intercepted between those circles. It is measured toward the west as a positive direction through...
Page 62 - ... perfect the exhaustion. The actual movement at the centre of the elastic box, from whence the indications emanate, is very slight ; but this is increased 657 times at the point of the hand ; so that a movement to the extent of...
Page 122 - W ) v 2 (W) equal the sum of the weights for the mean of each night. The observations for longitude were submitted to Professors GP Bond and James Major for computation. Table "B...
Page 19 - ... line of sight not being at right angles to the axis of vertical motion 18.
Page 28 - Observed horizontal angle 77 45' between Canopus and /3 Tri. Aus., at opposite elongations, pol. dis. 37 22
Page 30 - ... will be the logarithm of the number of seconds and decimals in the arc — that is, no'oo.
Page 134 - Right ascension of the meridian is the hour angle of the first point of Aries.

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