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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.
Offers assistance for JH's proposed catalogue of nebulae. Will send estimated positions of recently discovered nebulae.
Thanks WP for WP's paper on nebulae and on WP's giant reflecting telescope. Comments on and/or raises questions about various nebulae.
Assistant Samuel Hunter will send WP's observations to JH. Original intent was to confirm JH's nebulae, but WP soon found new nebulae. Trouble finding good assistants. Note on new transit instrument.
Still searching for journal of WP's observations. Notes on micrometer used in measuring nebulae positions. WP's assistants are not qualified to make new measurements.
Encloses letter from G. J. Stoney, who had journal of WP's nebulae observations. Hopes WP's observations will be helpful for JH's proposed catalogue of nebulae.
Discusses plans for a memorial for Thomas Maclear. Requests change in manner in which WP records positions of nebulae observed at WP's observatory.