JH responds with an assessment of the Indian observatories [see GA's 1866-9-24].
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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.
JH responds with an assessment of the Indian observatories [see GA's 1866-9-24].
About William Whewell's accident, and the ideas of E. F. W. Klinkerfüss on the behavior of light due to the motion of a star source.
Comments on the quality of the star catalogue of Charles Rümker [see John Wrottesley's 1866-4-16].
Comments on Charles Rümker's observations and agrees to a meeting [see John Wrottesley's 1866-5-12].
Responds to meeting arrangements [see GA's 1866-5-24].
A note to accompany forwarding of papers and letters relating to Charles Rümker's observations [see GA's 1866-5-31].
Comments on William Whewell's replacement on the Royal Observatory's Board of Visitors.
Not well enough to attend Visitation Day at the Royal Observatory, but would be pleased if GA would invite JH's son John.
Inquires of GA as to the current status of parliamentary moves to introduce the metric system into Britain [see GA's 1864-9-28].
Has heard that the Indian government may adopt the metric system; wants to gather, and send to India, information against metrication; JH still wants to bring the earth's axis length into the measuring system.
Avails himself of GA's offer of assistance to obtain information [see GA's 1866-4-27].
Has been asked to serve on a new Commission on Weights and Measures; indications are that the metric system is being recommended to the Indian government.
Comments on the work of the Commission on Weights and Measures as outlined by GA [see GA's 1866-9-13].