Informs HL of the intention of holding a magnetic congress at the meeting of the B.A.A.S. in 1845, and JH seeks HL's opinion.
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The Sir John Herschel Collection
The preparation of the print Calendar of the Correspondence of Sir John Herschel (Michael J. Crowe ed., David R. Dyck and James J. Kevin assoc. eds, Cambridge, England: Cambridge Univ. Press, 1998, viii + 828 pp) which was funded by the National Science Foundation, took ten years. It was accomplished by a team of seventeen professors, visiting scholars, graduate students, advanced undergraduates, and staff working at the University of Notre Dame.
The first online version of Calendar was created in 2009 by Dr Marvin Bolt and Steven Lucy, working at the Webster Institute of the Adler Planetarium, and it is that data that has now been reformatted for incorporation into Ɛpsilon.
Further information about Herschel, his correspondence, and the editorial method is available online here: http://historydb.adlerplanetarium.org/herschel/?p=intro
No texts of Herschel’s letters are currently available through Ɛpsilon.
Informs HL of the intention of holding a magnetic congress at the meeting of the B.A.A.S. in 1845, and JH seeks HL's opinion.
Would like a statement from Edward Sabine and HL outlining the probable expense and materials required for the proposed expedition so that he can hand it to the government at the interview. Has written to G. B. Airy, who is not in favor of the proposed expedition, so will write again. Thinks it necessary for men of science to agree before presenting petitions to the government.
Regarding the revision of the instructions for the magnetic observatories.
Some personal and some general astronomical news.
JH reiterates his support of a South Polar expedition.
Is anxious to hear from HL about his ideas for a major expedition for magnetic observations being considered by the B.A.A.S.
Further comments in preparation for discussion of major expedition [see JH's 1838-10-22] with representatives of the government.
Responds positively to HL's 1839-4-17, and adds some additional comments.
About times at which magnetic observations should be made at each observation station.
G. B. Airy needs HL to send him the information used to set up colonial magnetic observatories.
About the urgent need to prepare a report on the magnetic observations, and that HL is the most logical person to give direction to it.
Urges some revision in both the report and instructions for the magnetic observations.
Asks HL for comments about the question of continuing the magnetic observations.
Question of procedure about considering the magnetic observations for publication.
Is trying to organize a meeting of the Magnetic Committee before the meeting of the B.A.A.S. in Cambridge, to deal with reporting and committee membership.
Further to arrangements about meeting [see JH's 1845-5-30].
Asks questions about how to proceed for the continuance of magnetic observations.
Regrets that he cannot attend B.A.A.S. meeting and stay with HL; thanks HL for his paper on the undulating theory.
Begs not to be chairman of the proposed Magnetic Conference Committee [see HL's 1857-10-19], but would serve on the committee.
Passes on the suggestion, from G. B. Airy, of the use of copper rings for damping the movements of measuring instruments in measuring terrestrial magnetism.