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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.
Responds to TH's complaint that the government and the R.A.S. are not liberal enough with grants for science. JH rejects both complaints and explains why.
TH has been hurt by the tone of JH's letter [see JH's 1831-8-2] and felt he was writing to JH in confidence. JH assures TH that he has spoken to no one about any private details in TH's letter.
Sending by the bearer mirror No. 3 of which he spoke. Will exchange it for Troughton's if TH can make use of JH's. Do not attempt to clean Edward Troughton's mirror with acid. Hopes he does not feel obliged to carry out any particular series of observations.
Has been able to destroy a large portion of the color of brown sugar by the use of chlorine. If these hints are of use to TH's friend, TH may convey them.
Gives references to good sources on astronomical projections. Discusses this subject and also logarithmic tables.
[Responding to TH's 1830-9-10], JH notes that John Murray declined to publish an edition of William Herschel's papers. Believes if republished his father's writings should be corrected and annotated, which JH could not at present undertake.
Will check to see whether JH has a spare telescopic mirror JH can give TH. Comments on observing Gamma Virginis and other double stars.
Because TH's letter has not reached JH, JH cannot reply. Is taking up residence in Slough.