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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.
Reminds JH that the algebraic formulation of the theory of the achromatic telescope eyepiece was formulated by GA.
Offering sympathy on the death of JH's daughter [Margaret Louisa].
Is sending a tract on 'Probable Errors.' Further observations on JH's article on telescopes.
Asks for his comments on the results of his Magnetic Register 1848-1857.
Further remarks concerning his Magnetic Registers [see GA's 1861-4-22].
Regarding the evaporation of water as a source of electricity. Magnetic results in relation to the North Atlantic.
Encloses printed copies of letters received from Johann Lamont regarding apparatus for examining Galvanic currents in the earth; would like his comments on them. Gave lecture in Manchester on the eclipse.