Thanks RM for the double star observations he has sent.
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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.
Thanks RM for the double star observations he has sent.
Sends RM a copy of Angelo Secchi's double star observations pointing to a very large number of calculation errors.
News of JH's son William and family, visiting England. JH and wife suffer from hot weather. JH's son John observed 'great eclipse.'
Recalls CS's promotion to senior clerk in Mint office in May or June 1854, with full approval by W. H. Barton. Attests to CS's merits then, but advises CS to seek recommendation now from current master of Mint.
Describes the peculiar pairs of sunspots he has recently witnessed. Thinks the earth affected their appearance somehow. Is using the Julian calendar for dating observations.
Sends back excellent translation of his review with minor corrections. Mentions 'fine display of meteors with long trains' on 10 August. Gives news of his son Lieutenant John Herschel's observations. Acknowledges works received.
Given up idea of translating Dante; comments on meteor shower report; suggests EC write an ode on poverty.
Is anxiously awaiting details of son John's observations of the solar eclipse in India; JH sends details of sunspots observed by JH on 18 Aug., and concludes with family news.