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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.
Andrew Graham has found another planet [Metis]. Gives readings made with the meridian circle of latest observations. Returns to Ireland soon.
Congratulates EC on 'Thetis' [proposed name for asteroid Metis]; J. R. Hind has discovered a new star.
'Thetis' has yet to be discovered. Discusses names for new planet.
Congratulates EC on the first volume of Stars near the Ecliptic: JH expects never to observe again.
Returns EC's manuscript with some comments.
Contrasts EC's catalogue of comets with that of J. F. Encke.
Offers a variety of solutions to stopping 'offensive light' during solar observations.
Regarding the non-arrival of his star catalogues. Thinks that four volumes will finish the observations.
Is sending the third volume of Ecliptic stars. Has arrived in Leamington for the winter and for his daughter's marriage.
Gives details of his various telescopes and cameras.
Confirms measurements of a transit circle.
Regarding modifications to the water eye piece of his telescope.
On the usefulness of Stephen's Writing Fluid to stop the sun's excess of light at large apertures in the telescope.
Disappointed that EC could not visit Collingwood in February while in Tunbridge Wells to visit daughter, Mrs. Arthur Warre. Leaving for London to see Exhibition.
Will send records of cometic nebulae EC found in Nice during winter of 1844-1845. These did not appear in JH's catalogue. Does JH have all nebulae found by William Parsons?
Sending sketches of nebulae made in Nice and Naples in 1843-1845 using K. L. Harding's maps. Please return them.