Regarding the work of Yvon Villarceau on double stars. Would like a reference from Sir William Herschel's paper.
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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.
Regarding the work of Yvon Villarceau on double stars. Would like a reference from Sir William Herschel's paper.
Encloses some sketches to show some remarkable changes in solar spots. Would he place the observations before the R.A.S. when finished with them.
Sends details of the progress of erecting the equatorial. William Mann is engaged on the Simon's Bay tide observations. The Madras Observatory post was offered to Mann but he declined it for health reasons. Comments on the affairs of [George Smalley], who is in financial difficulties. Not much news from the Cape. Comments on some of the educational news.
Sends the proof of the lithograph from the Daguerreotype for JH's comments and additions.
Examined the nebula of Andromeda the night before last with his three-foot instrument. Comments on his observations and the sketch made by [W. C.?] Bond. Would require several good nights to make a sketch of value.
Wishes to embody in his reports on atmospheric waves details of JH's work in this field. Would like his comments on his suggested wording. Can E. W. Brayley borrow Karl Kreil's book? Nothing from Madras yet.
Has received his letter of the 20th and is anxious to know if E. W. Brayley can borrow Karl Kreil's book.
Will be pleased to supply the casts [of the bust of Francis Baily; see M. Grantham's [1849]-1-15]; charge is five guineas each.
Would he trouble himself about the address only; all the rest will be arranged for him.