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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.
Wishes CH a happy 93rd birthday. Occupied with remodelling the Southern Constellations, which 'are all in confusion;' admits that not everyone will be satisfied with his constellation reforms.
Describes the visit of the Crown Prince and Princess [of Hanover?] on her 93rd birthday (16 March).
Concerning the great comet of 1843, JH remarks that both Thomas Henderson and Johann Encke noted that the comet bounced off the sun's atmosphere.
Urges JH to study a temporary index made by William Herschel that contains observations about types of zodiacal light.
Completed 'one of the most curious products' of JH's Cape Results: the map and catalog of the 'Nubecula major' region.
Enjoyed reading CH's account of some significant events from her life. Reports that James Clark Ross has returned safely from his South Pole expedition in which Ross discovered the true position of the South Magnetic Pole.
Assures CH that he has preserved everything that she ever wrote to JH or that he found in William Herschel's library.