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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 JH's 1823 paper 'Absorption of Light by Coloured Media' to Royal Society of Edinburgh. Approves DB's illustration of polarized light in mineral apophyllite. Corrects DB's quotation from JH's letter regarding crystals observed on Mont Blanc.
Vol. 6 and 7 of F. W. Bessel's observations. Did DB receive JH's paper?
JH's theory of colors. Edward Troughton has DB's instrument one-third completed. When will DB want JH's encyclopedia article on 'Variation'?
Sends circular of F. W. Bessel's 'Declinations.' Sent paper on 25 July for Royal Society of Edinburgh, similar to DB's paper outlined in previous issue [of Edinburgh Journal of Science]. Argues for continuity of color spectrum versus 'per saltum' transitions.