 ... horizontal, the other vertical, so that, by means of screws, one end of the axis may be pushed a little forwards or backwards, and the other end may be either slightly depressed or elevated. Which two small* movements are necessary, as it will be...  Elementary Treatise on Astronomy - Page 27by William Augustus Norton - 1852 - 382 pagesFull view - About this book
 | Robert Woodhouse - 1821 - 1068 pages
...small* movements are necessary, as it will be soon explained, for two adjustments of the telescope. Let E be called the eastern pillar, W the western....the graduated face of a circle, attached, as it is shewn in the figure, to the eastern pillar. The use of this part of the apparatus is to adjust the... | |
 | Robert Woodhouse - 1821 - 490 pages
...small* movements are necessary, as it will be soon explained, for two adjustments of the telescope. Let E be called the eastern pillar, W the western....the graduated face of a circle, attached, as it is shewn in the figure, to the eastern pillar. The use of this part of the apparatus is to adjust the... | |
 | Robert Woodhouse - 1821 - 922 pages
...small* movements are necessary, as it will be soon explained, for two adjust' incuts of the telescope. Let E be called the eastern pillar, W the western....fixed (so that it revolves with the axis) an index «, the upper part of which, when the telescope revolves, nearly slides along the graduated face of... | |
 | Thomas Curtis - 1829 - 852 pages
...soon explained, for two adjustments of the telescope. 818. Let E be called the eastern pillât, \Vthe western. On the eastern end of the axis is fixed (so...of the apparatus is to adjust the telescope to the zenith, or polar distance (for the one is as easily done as the other) of a star, the transit of which... | |
 | Thomas Curtis (of Grove house sch, Islington) - 1839 - 906 pages
...818. Let F, be called the eastern pillai, \V the western. On the eastern end of the axis is fixed (s» that it revolves with the axis) an index n, the upper part of which, when the telescope i, ne.irly slides along the graduated face jrrectcd, by making ihe line of sight folUv the circular... | |
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