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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.
Describes the problem of 'probability of three points on a plane forming an acute triangle.' Notes Augustus De Morgan has the same solution to the problem.
Cannot find the source of supposed Wilhelm Struve probability calculation; believes he has made a mistake. Regrets the error was not noticed in time to correct the seventh edition of Outlines Astr.
Sends copy of paper on 'projection of the sphere in which the problem is to make any infinitely small figure on the projection similar to that on the sphere,' which he has presented to the Royal Geographical Society.
Unable to find the calculation of Wilhelm Struve about which IT inquired. Will investigate the matter further.
Thanks JH for compliments on his work [History of the Mathematical Theory of Probability]. Suggests changes in the Wilhelm Struve probability problem.
Makes suggestions for the solution to the three point probability problem using integrals of infinity.
Asks again about Wilhelm Struve calculation in Outlines Astr.
Printing History of the Mathematical Theory of Probability. Inquires about a probability calculation of Wilhelm Struve's in JH's Outlines Astr.
Thanks JH for looking into the Wilhelm Struve probability calculation; makes note of the change in his work.
Thanks JH for compliments on his book [Theory of Equations]. Requests JH's signature for his application to the R.S.L.