Replies to JH about the date of the transit of Mercury [see JH's 1864-1-[26]].
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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.
Replies to JH about the date of the transit of Mercury [see JH's 1864-1-[26]].
The practice at the Royal Observatory is to compare proof copies with calculation sheets [see JH's 1864-2-5].
Regarding Thomas Spring-Rice (1st Baron Monteagle), the Treasury and the Commission on Weights and Measures.
Further regarding the forthcoming meeting of the Standards Commission. Regarding JH's 'Catalogue of Nebulae.'
Regarding JH's forthcoming visit. On the platinum in the pound weight becoming browned.
Expecting him soon. Experiments on the National pound.
Regarding the transit of Mercury. Error in calculating the pound weights.
Meeting of the Standards Commission on 16 March.
Meeting of the Standard Commission on 29 April.
Sending him the map of the world.
Sending him the draft of the Report of the Standards Committee for his signature.
Regarding the opposition to the proposed introduction of the French Metrical system.H
Daughter has returned from Switzerland.
Informing him that he has just heard of the death of Wilhelm Struve.
Informs JH about train service [see JH's 1864-2-5], and encourages JH to stay with GA from the night before the meeting.