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.
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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.
Reports his observations on the explosion at Dover of 19,000 pounds of gunpowder.
Describes a particularly brilliant aurora, which JH observed from Collingwood on the night of 6 May.
[Replying to remarks by T. R. Robinson reported in Athenaeum, #830 (Sept. 23, 1843), 866-7,] JH argues that William Herschel's 40-foot reflector was not a failure, noting, for example, the discovery by it of the sixth and seventh Saturnian satellites.
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.