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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.
Sending his observations of the recent comet. JH's journey has aroused great interest in Germany. Taking over the Observatory and expecting a visit from F. W. Bessel. Wilhelm Struve has planned a new observatory for St. Petersburg. Has met astronomer Manuel Johnson from St. Helena. C. F. Gauss has produced a method of observing the magnetic needle.
JH has been elected to the Prussian Academy of Science; comments on JE's astronomical observations.
Comments extensively on the orbits of recent comets.
Writing to try to set up a visit to JH.
Thanks for JH's hospitality; tells of JE's further travel plans.
About the calculations of JE, and others, on the motion of the solar system.
Asks for permission to look at R.S.L. letters from G. W. Leibniz to Henry Oldenburg; comments on dioptrics, and several astronomical topics.
Comments relating to G. W. Leibniz correspondence [see JE's 1846-9-22]; comments on naming the new planet Neptune.
Sends a book on optics; if JH likes it, then tell others about it. Comments on some aspects of JH's Outlines Astr.
On some of the elements of the orbit of a newly appearing comet.
Sends some invitations to participate in an Alexander von Humboldt Foundation.
On the orbits of short period comets, and the shortening of such orbits.