Requesting advice on his reflex zenith tube. Regarding progress on 'Standards.'
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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.
Requesting advice on his reflex zenith tube. Regarding progress on 'Standards.'
Wants one or more of JH's actinometers. Notes his suggestion about the zenith tube.
Relating his experiments with the zenith tube.
Has procured an actinometer and would like details of the scale.
Relating his experiences on his recent tours abroad.
Regarding experiments on the Mohamet's coffin theory. His son Wilfrid has won a scholarship at Trinity College, Cambridge.