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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.
Requests publication of what will hopefully be JH's last letter on the Slough telescope [see JH's "[Reply to Dr. Robinson [on the Reflecting Telescopes of the Late Sir William Herschel]," Athenaeum, #836 (Nov. 4, 1843), 983-4.
Continues the debate with T. R. Robinson [see Athenaeum, #830 (Sept. 23, 1843), 866-7; #831 (Sept. 30, 1843), 884; and #834 (Oct. 21, 1843), 945-6] on the quality of William Herschel's 40-foot reflecting telescope.
Will try to attend meeting called by GA, although JH is plagued by rheumatism; comments on the periods of Saturn's satellites.
Reports observations of the comet of March 1843 [Great Comet of 1843] made from India by a Mr. Clerihew, who reported seeing a bifurcation of the comet's tail.
Comments on the value of meteorological observations that TP proposes to undertake.
Disagrees with AW. Declines to intercede. [See AW's 1843-10-31].
Sends diagram of the 'little sweeper,' which is now at Hanover with 94-year-old Caroline Herschel.
WM is not the first person to write to JH on the application of photography to astronomy. Comments on the question and gives some of his own views on the subject.
Would she read the enclosed letter and show the passage marked to Mrs. F. M. Wilson. This morning he dispatched to her a book and gloves. Will send the photographs and picture by some other means later.
Recounts visit to Collingwood by the novelist Maria Edgeworth. Thanks WW for information on Charles Prichard and his school.