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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.
Sets out JH's preferences with regard to developing a system of reductions of astronomical observations that could then be easily applied.
About the prices of telescope mirrors, and specifically the one of T. J. Hussey; recommends use of certain stars to test the optical quality of the mirror.
Thanks GA for the second volume of his observations; wishes the publications of the Astronomer Royal were as good; adds some comments on polarization of light by liquids, and then talks about observing Georgium Sidum [Uranus], and deals with the orbits of satellites of planets generally.
Not interested in any contest of telescopes; will view objects desired by PB as they fit with JH's observational plans.
Sending a list of the stars to be observed to test the strength of his telescope.
About the pressure on JH to complete his book, Prelim. Discourse, and JH's plans about coming to London.
A note sent with a parcel to be delivered; JH's book is progressing well.
About the editing of JH's writings by W. H. Fitton, and about some errands to be done for JH.
Arrangements about JH coming up to London, and the health of his mother.
About the state of the renovations [see JH's 1829-12-[21]], and JH's plans for coming to London, where he needs to do some business both for himself and his mother.
The renovations are complete [see JH's 1830-1-3], and JH sends details of his coming to London.
There are some problems with some of the renovations [see JH's 1830-1-3].
A note about ES being with JH and Margaret on the anniversary of their wedding. Enclosed is a 2pp letter from Margaret to her mother.
Sends news of JH's mother's recovery of health, and of his intentions of returning to Slough with his mother.
Writes to announce the birth of JH's and Margaret's first daughter, Caroline Emilia Mary.
About the upcoming christening, the health of Margaret, and JH's concern about the tone of Charles Babbage's upcoming book.
About arrangements for the christening of daughter Caroline, and about the health of the family.
Still making arrangements for the christening [see JH's 1830-4-15]; concerned that it should be done soon.
Relieves ES's concern about the health of Margaret Brodie Herschel—all is well, and all around them are very helpful; wishes recovery for Margaret Herschel's sister Isabella.
Is hesitating about a decision to come in to London, because his mother seems very ill.