Answers questions raised by AH in his 1850-1-19 [letter contains notes made by AH].
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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.
Answers questions raised by AH in his 1850-1-19 [letter contains notes made by AH].
JH has been delayed in replying to AH's 1851-8-13 because of official duties at the Great Exhibition. Comments further on several astronomical matters.
Offers some information on 'Coal Sacks' in Southern Cross [see AH's 1850-7-31]. Happy to hear that volume 3 of Kosmos is near completion.
Queries regarding JH's star lists. Sending magnetic information from A. T. Kupffer. Regarding the distribution of nebulae.
Is grateful for his constructive letter on the Coal Sack. Regarding the work of the Schlaginweit brothers.
News of the astronomical activities of his colleagues. Astronomical queries.
Introducing Adolphe Barth. Astronomical news and queries.
Sends a letter of praise for the family Herschel, including especially JH and his father, William.
Astronomical queries, with particular reference to the Coal Sack. [Probably to JH, but unclear from letter.]
Thanks JH for JH's review of AH's Cosmos. Recommends E. H. DuBois-Reymond to JH's attention.