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Showing 1–20 of 67 items
No summary available.
Has been informed that William Parson's telescope resolves all the nebulae in JH's catalogue into stars.
Regarding magnetic establishments and observations.
Comments on JH's observing a 'falling star.'
Wants to know if GA's opinions [see GA's 1845-4-1] are available for public information, or only for JH.
Last letter to JH was private [see GA's 1845-4-1].
Wants information on dispersion/separation of light in plate or crown glass.
Provides the best values available for dispersion and separation, which will allow GA to calculate what he needs [see GA's 1845-4-4].
Gives detailed, official, replies to the questions in the magnetic committee circular [see JH's 1844-12-5].
Asking him to read GA's medal-speech.
Discourages the continuation of the magnetical and meteorological observations organized by the British.
Illegible.
Seeks GA's assistance in solving a puzzle in the mathematics of rotating bodies.
Comments on the various responses to the circulated questions about magnetic observations [see JH's 1844-12-5].
Is enclosing two transcripts of letters from William Simms relating to the object-glass. a. Hopes to give account next week. b. One glass good, other has failed.
Regarding the acceleration of retention of a shrinking sphere.
Mostly about the health of JH and his wife, Margaret.
Passes on information received from Thomas Maclear regarding stars. Has tried to use William Simm's object-glass.
Giving the plan of the Observatory.
Seems clear that JH's 'falling star' [see JH's 1845-4-29] was the same one reported by a correspondent of GA's as having been seen in Nottingham; in a postscript JH is not so sure.