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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.
Invites TM to a meeting of the Meteorological Committee, which James Adamson, Abraham Cloete, and James Bance hope to attend.
Wants to learn more about JH's book-keeping system.
Thanks JH for reading Andrew Smith's letter.
Found two planetary nebulae not listed in any catalog; hopes to show them to JH tonight.
Apologizes for his erroneous reduction. Thanks TM for his list of 'Zenith points.'
William Whewell asked JH to compare their June tidal observations with those of the British Admiralty; JH will urge John Deas Thompson to be extra precise in his findings.
Attempting to correct the faulty tidal and meteorological observations that JH made earlier in the week.
Busy interpolating the Simon's Bay tidal series; JH then intends to study Table Bay and to compare the results. Asked William Whewell to back an application to the British Admiralty for a tide clock to be erected at Simon's Bay as a permanent tide station.
Describes his comparison of the tidal series at Simon's Bay and Table Bay. Sending his barometer to TM.
Discusses printing costs. Heard that Halley's Comet was seen with the naked eye in Cape Town; JH is excited about his own prospects of seeing the comet.
Warns that 'a share in a new planet is advertised and that those who will bid must be on the alert.'
Hopes that TM can explain the errors in JH's star reductions. Saw Halley's Comet last night; comments that 'its tail was again fine and head very bright.'
In some places, Halley's Comet will be seen in or near its perihelion during the solar eclipse.
Asks TM to come over and to select the trees for the Time Ball.
Asks TM to inquire of Captain F. W. Grey of the Jupiter about N. L. Lacaille's mural quadrant, which was supposedly aboard the ship two years ago.
Is TM planning to go to Paarl?
Uncertain when they are traveling to Paarl.
Invites TM to come see Halley's Comet in JH's large reflector. JH reports his observations of the comet.
Calculates the location of the comet [Halley's].
Comments concerning Francis Baily's book on John Flamsteed.