The Royal Society King’s Medal in gold awarded to Sir John Frederick William Herschel, KH, FRS (1792-1871), one of the great British scientists of the 19th century is estimated to fetch in excess of ...

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II. THE simplest form of the reflecting telescope is that in which only one reflecting surface is used, known as the Herschelian, or, as Sir John Herschel, in his work, “The Telescope,” calls it, “the ...