No summary available.
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.