Detailed response to JH's 1846-10-22 about the matter of temperature corrections for magnetic observations.
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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.
Detailed response to JH's 1846-10-22 about the matter of temperature corrections for magnetic observations.
Suspects that the original complainant about temperature corrections [see JH's 1846-10-22] was in fact working with a faulty magnetometer.
Asks for JH's help in trying to determine the likely cost of making magnetic observations at Greenwich.
Thanks JH for his help [see JH's 1840-8-14], and tells JH about a visit to Greenwich by Charles Wheatstone.
Provides extensive comments, about GA's magnetic instruments and observations, in reply to Humphrey Lloyd's letter [see JH's 1842-1-17].
A notice of meeting of the Standards Commission.
A notice of meeting of the Standards Commission.
A note to accompany a draft of the report of the Standards Commission.
A notice of meeting of the Standards Commission.
Asks JH to put in writing proposals JH had made at a Standards Commission meeting, especially those relating to nomenclature [see GA's 1841-2-8].
A note to accompany additions, comments, and emendations relating to the report of the Standards Commission.
Seeks clarification from JH about a number of matters in the draft report of the Standards Commission [see JH's 1841-5-12 or earlier].
A summons to a meeting of the Standards Commission, together with some proposals for amending the report.
Agrees to having GA's views made public [see JH's 1842-1-18 or later] as JH sees fit; comments on aurora and magnetic storm observations.
A note to accompany a number of papers on the 'toleration of inaccuracy,' a question of concern to JH in relation to the setting up of standards.
Sends JH a copy of extracts from unpublished papers on the question of standards, and asks for JH's comments on these extracts.
A letter accompanying a proof copy of the Report on Standards, asking JH to read it carefully and annotate as completely as necessary.
Requests the views of JH, and all other Standards Commission members, on the various subjects before the Commission; GA will compile these and circulate them to all Commission members to expedite discussions at future meetings.
Asks for JH's comments on George Peacock's assessment that the Report of the Standards Commission [see GA's 1841-7-27] is directed too much to scientific men, and others will not understand it; suggests an appendix to show the relationship between the proposed measures.
The Royal Observatory wants to make magnetic observations at Greenwich, and it appears will need to make some building alterations. Estimates are required immediately by the Admiralty/Treasury, and GA seeks JH's assistance.