About observations of the seventh satellite of Saturn, and using William Parsons' (3rd Earl of Rosse) 'machine'.
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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.
About observations of the seventh satellite of Saturn, and using William Parsons' (3rd Earl of Rosse) 'machine'.
Note to accompany details of WL's observations of the satellite of Neptune. [Details are found in WL's letter to H. C. Schumacher of 1847-8-6.]
Details of steps in his discovery of the satellite of Neptune. Gives details of the telescope he is using.
Grateful for JH's Cape observations. Has nothing new to report on the ring of Neptune. Has been troubled with dew on his prism, but has now succeeded in overcoming this difficulty.