Regarding magnetic establishments and observations.
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Regarding magnetic establishments and observations.
Comments on JH's observing a 'falling star.'
Last letter to JH was private [see GA's 1845-4-1].
Wants information on dispersion/separation of light in plate or crown glass.
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.
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.
Passes on information received from Thomas Maclear regarding stars. Has tried to use William Simm's object-glass.