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is species of parsimony is hereditary in the English Government, for, upon the authority of the _Quarterly Review_, we learn that "within the wide range of the British Islands _there is only one observatory_ (Greenwich), _and scarcely one supported by the Government_. We say scarcely one, because we believe that some of the instruments in the observatory at Greenwich were purchased out of the private funds of the Royal Society of London."[2] [1] For this very accurate Description with an Engraving, see MIRROR, No. 400. [2] For the remainder of the Extract, &c. see MIRROR, vol. xii. p. 151. Only a few days since we saw recorded an instance of enthusiasm in the study of astronomy, which will never be forgotten. We allude to Mr. South's splendid purchase at Paris; yet all the aid he received was some trifling remission of duty! The first stone of this Observatory was laid by Flamstead, on the 10th of August, 1675. It stands 160 feet above low-water mark, and principally consists of two separate buildings: the first contains three rooms on the ground-floor--viz. the transit-room, towards the east, the quadrant-room, towards the west, and the assistant's sitting and calculating-room, in the middle; above which is his bed-room, the latter being furnished with sliding shutters in the roof. In the transit-room is an eight-feet transit-instrument, with an axis of three feet, resting on two piers of stone: this was made by Bird, but has been much improved by Dolland, Troughton, and others. Near it is a curious transit-clock, made by Graham, but greatly improved by Earnshaw, who so simplified the train as to exclude two or three wheels, and also added cross-braces to the gridiron-pendulum, by which an error of a second per day, arising from its sudden starts, was corrected. The quadrant-room has a stone pier in the middle, running north and south, having on its east face a mural-quadrant, of eight feet radius, made by Bird, in 1749, by which observations are made on the southern quarter of the meridian, through an opening in the roof three feet wide, produced by means of two sliding shutters; on its west face is another eight-feet mural quadrant, with an iron frame, and an arch of brass, made by Graham, in 1725: this is applied to the north quarter of the meridian. In the same apartment is the famous zenith-sector, twelve feet in length, with which Dr. Bradley, at Wanstead, and
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