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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.
Is sending him the second edition of his book on magnetic attractions. Comments on the views put forth in this work.
Will send MS's communication about the theory of caloric to some scientific journals, rather than the Astronomical Society, where it would be inappropriate. Comments on caloric theory.
Forwarding to DB, through Hans Christian Oersted, a paper on caloric by Marc Seguin.
Worries that Johann Pfaff is unqualified to translate William Herschel's papers into German; hopes that JH will be the primary authority for commenting on WH's work.
Has had a meeting with the Chancellor of the Exchequer concerning his calculating machine. Is to get financial assistance from the government. Hopes to see JH on Monday night.
Discusses various apparent errors JS has been detecting in observing double stars with two different telescopes. Assures JH that no serious problems exist.
Is sending the agreement between the government and CB regarding payment for work on the calculating machine.
Has signed the paper regarding the machine and is returning it. Regarding its publicity with Members of Parliament.
Regarding the paper on the machine for the Treasury. Will postpone his visit to Slough.
Will follow JH's instructions. Expects to find inst[rument?] at home of Mr. Mowman or at Leicester Square.
Hopes to receive more correspondence from JH. Often wishes that she could be with JH in order to ensure that he will not overwork himself like William Herschel did.
With the departure of [Otto von] Kotzebue, WS takes the opportunity to send JH volumes of Dorpat observations. Requests notification if volumes do not arrive.
There is to be a sale of pictures, including one of JH; would he like it? Has not heard anything from the Treasury yet regarding payment of his money. Plans for projected holiday.
Is coming to London and wants to see JH.
Regarding the Chancellor of the Exchequer and the calculating machine. Recent astronomical observations.
'Our micrometer screws' are not in error. F. G. W. Struve's star measurements using Josef Fraunhofer's repeating micrometer agree well with JH's. So error must be in HK's observations.
Researching double stars. Comparing his finding to William Herschel's, finds that most are compatible. The 40-ft. reflector is unusable, but hopes to try the 20-ft. Heard that WH's papers will be translated into German; wishes Johann Pfaff to undertake it. Asks CH to send him a copy of the finished translation.
[J. W. A.] Pfaff plans to publish a translation and edition of all William Herschel's papers. Requests a catalogue of those papers and permission to publish a biography of his later years.
Has purchased the picture for £8. Will be at Birmingham tomorrow.
Reports on various observations of double stars that JS has made. Asks JH to check some of JS's results.