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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.
Sends actinometric returns and drawing of comet from Hobarton Magnetic Observatory. [John] Lefroy's expedition in U.S. and Canada is going well. Received the observations from Algiers.
Has had to terminate his appointment at George Bishop's Observatory and is determined to leave London and settle in the country. Has heard of a residence near Hawkhurst and would like to visit JH this coming Monday.
Regarding electrometers and their efficiency.
Thanks for his instructive letter. Comments on the terms suggested for the chemical change. Has now improved his chromatype process. Unable to continue his researches on light owing to lack of finance.
About the financial arrangements for Caroline Herschel [see JH's 1844-1-2], and news of her health.
Describes an experiment that may explain optical 'delusion' created when stars pass behind moon. Will publish it if JH finds it worthy of publication.
If publication costs exceed £1000 available, PS suggests publishing JH's [Cape Results] in two separate volumes, subsidizing 'drier' part for 'men of Science,' and selling 'interesting' part. Explains how PS applied [limited] government grants to works of [Andrew] Smith and Charles Darwin.
Regarding the arrangement of 'Argo.'
Regarding the workings of Insurance Companies and Benefit Societies. Recommends an actuary. Hopes JH will come down for the Anniversary meeting.
Further regarding glass for telescope. Postscript relating experiments with electricity.