About a grant to support [H. J. R.] Petersen while he carries out the reduction of terrestrial magnetic observations.
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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 a grant to support [H. J. R.] Petersen while he carries out the reduction of terrestrial magnetic observations.
Would support the application for a grant [see JH's 1870-5-12], but would like to see some changes in the way calculations are made.
Refers to several items of correspondence, and then comments on the calculation of Gaussian earth-constants to a higher power than has been done to date.