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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.
After collecting and reducing all nebula observations by JH and William Herschel, JH objects to GA's suggestion that JH should pay for calculations needed to prepare catalogue of nebulae. Hesitates to request additional funds from R.S.L.
Acknowledges receipt of Royal Observatory's astronomical, meteorological, and magnetic observations for 1863.
Concerned about 'Commercial weight' of new standard of weights and measures.
JH responds with an assessment of the Indian observatories [see GA's 1866-9-24].
Has seen colored fringes on clouds described, and explained, in a journal. Does GA accept the explanation?
Asks GA many questions about his magnetical explanation [see GA's 1861-4-22].
Sends £10 to GA, exhausting grant from R.S.L. GA's estimate of 5600 nebulae was too high. Recommends asking R.S.L. for additional £50.
Explains how to detect errors in catalogued positions of stars. List of new nebulae in [G. F. J. A.] Auwers's catalogue.
[Form Letter] GA's address, as Astronomer Royal, to Board of Visitors. Progress report on F. G. W. Struve's proposal for joint French-English-Belgian triangulation survey.
About some major variations in terrestrial magnetism readings.
Comments on GA's theory of the thermo-electric origin of terrestrial magnetism.
Has read the syllabus of GA's lectures on magnetism; it reminds JH of his attempt to solve the problem of 'Mahomet's coffin', which JH still believes would work.
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.
Response to a letter from JH to G. G. Stokes [1867-5-5] seen by GA, on the problem of the effect of the telescope on illumination from a light source, especially related to a solar eclipse.
Is considering a new edition of Outlines Astr.[?] and wants to provide the latest determinations of the periods of rotation of the planets.
Comments on the state of William Whewell's health, and about the theories of E. F. W. Klinkerfüss [see JH's 1866-2-27].
Passes along a report that someone took a 4-foot telescope to the top of Snowdon [mountain], from where he could see the eight satellites of Saturn and the rings of Neptune.
Has received GA's paper on spectral lines and is amazed that it is possible to see a spectrum in the light from faint nebulae.
About observing a grain-shaped spot on the sun; greetings to Friedrich Winnecke.
Sends GA [see GA's 1863-11-21] JH's copy of the Melbourne telescope correspondence and reports; needs information from GA and Edwin Dunkin about the sun's motion, although JH questions some of Dunkin's work.