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Encloses a queer pamphlet, which may amuse him, but it has put D. F. J. Arago and others into a towering passion. The public tends to forget one's existence if too long away from London, so hopes that JH will bear this in mind.
Just arrived home from the meeting (which was convened to arrange landing of articles from the Expedition) and found JH's note. Is unable to return to England yet for various reasons. Sure Capt. Frederick Warren will be pleased to take any message to England for JH.
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News of friends and family.
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Pleased to hear of the good health of JH and family. Everyone hopes JH will make new discoveries in the physiological and anatomical fields as a result of his observations. Etna's crater is slowly changing. A fireball has been observed; also Halley's Comet as correctly predicted by Niccolo Cacciatore.
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Comments concerning Francis Baily's book on John Flamsteed.
Thanks TM for the right ascension reductions. Saw the comet [Halley's] last night, but it was dimmer than before.
Has compared TM's observational measurements with those of the Brisbane catalogue, and finds TM's observations to be better; is working on a star photometer.
JH's observations of the comet [Halley's], together with comments on constellation nomenclature and stellar magnitudes.
Calculates the location of [Halley's] comet.
Is too busy to use Carl Gauss's magnetometer. Viewing Halley's Comet has interrupted JH's sweeps. Reports that Gamma Virginis is a single star in both the 20-ft. reflector and 7-ft. equatorial.
Star within 20 seconds of the nucleus of the comet [Halley's].
Has installed his astrometer to help judge star magnitudes; also makes a comparison of barometric observations with those of TM.