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Arranges a meeting with CW and Edward Sabine to discuss Kew [magnetic] observations.
Sends CW a specimen of JH's 'mercurial photographic process.' JH is pleased that W. H. Fox Talbot received the Rumford medal.
Recommends Robert Hunt to fill the professorship at King's College, left vacant by the death of John F. Daniell.
The continuation of magnetic and meteorological observatories is under question, and CW's instrument for observing atmospheric electricity should be part of the discussion.
Makes some amendments in JH's request for information [see JH's 1845-4-6].
Asks for CW's contribution to the Admiralty's scientific manual.
Strongly supports W. E. Weber as the best candidate for the receipt of the Rumford Medal [see CW's 1849-11-10].
Invites CW to come out to Collingwood next week when some other friends are coming, too.
Is pleased CW is coming [see JH's 1849-6-29]; JH asks CW to bring some of his apparatus to do polarized light experiments.
Agrees to meet JH and Edward Sabine on Saturday. Kew Observatory was given to R.S.L., but R.S.L. has not yet taken possession of it. [JH annotation: election of General Morrison to R.S.L.]
Discusses when and how often R.S.L. committees, particularly the physical committee, should meet.
Encloses B.A.A.S. statement of objectives for Richmond Observatory, for which B.A.A.S. Council asks JH to organize goals and support annual subsidy.
Received prospectus of Kew observatory. Its objectives seem incompatible. It appears better suited as experimental institution. Refer Francis Beaufort to JH's 11 Oct. 1835 letter to Beaufort defining physical observatories.
Agrees that vacancy in chemistry professorship left by J. F. Daniell's death at King's College should be filled by Robert Hunt, but W. A. Miller appears likely to get job.
Gives JH directions to Kew Observatory.
[George Eden] Lord Auckland seeks meteorological 'reports.' CW will contribute instructions on atmospheric electricity, photometry, and optical meteorology. W. R. Birt will report on meteorological instruments and wind observations.
Seriously ill. Will forward manuscripts to JH by next week.
R.S.L. Physical Committee considering giving Copley medal to W. E. Weber for work in electromagnetism. Does JH concur? Other candidates are F. E. Neumann or A.L. Cauchy in physical optics, and Michael Faraday on condensation of gases. Rumford medal was awarded to H. V. Regnault for work on steam engine.