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Updated: May 16, 2025
I found him a very gentlemanly person, and very willing to show me anything of interest about the observatory; but they make no regular series of astronomical observations, other than those required for the commerce of Liverpool. "Mr. Hartnup has a clock which by the application of an electric current controls the action of other clocks, especially the town clock of Liverpool distant some miles.
"They keep an album of the autographs of their scientific visitors, and among them I saw those of Professor Young, of Dartmouth, and of Professor Loomis. "August 4. I have just returned from a visit to the Liverpool Observatory, under the direction of Mr. Hartnup.
Accordingly it need not surprise us to learn that in 1853 the dark ring was seen with a telescope less than three inches and a half in aperture. Even so early as 1851, Mr. Hartnup, observing the planet with a telescope eight inches and a half in aperture, found that 'the dark ring could not be overlooked for an instant.
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