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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.
Should JH be attending the B.A.A.S. meeting at Cork, hopes he will visit WP and spend a few days with him. Gives news of the progress of his great telescope.
Declines WP's invitation to attend Cork B.A.A.S. meeting and afterwards to visit WP and to see his reflecting telescopes. Informs WP that [C. A. von] Steinheil had written JH about a process of 'Electro-gilding' mirrors for telescopes.
Thanks WP for sending drawings and descriptions of various nebulae observed with WP's giant reflecting telescope. Comments on various nebulae. Expresses the idea that some planetary nebulae are 'hollow elliptical or spherical shells with or without a central Star.'
Will call for JH's [Cape Results] when in London. One of WP's assistants reported ring around Neptune last winter, but WP is skeptical. Instruments idle for nine months. WP too busy with [Irish famine] relief. Wrote to T. R. Robinson to find competent assistant.
Has never seen the great nebula of Andromeda satisfactorily resolved; comments on this and gives some of his observations. Will be going to Brighton and then take his family to London for Easter.
Examined the nebula of Andromeda the night before last with his three-foot instrument. Comments on his observations and the sketch made by [W. C.?] Bond. Would require several good nights to make a sketch of value.
About adjudication of R.S.L. medals.
Recommends Edward Sabine's work on terrestrial magnetism for Royal Physical Medal, and joint award of Copley Medal to WP and William Lassell for improvements in reflecting telescopes.