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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.
Intends to dispatch the packet to the Admiralty in a few days and await Francis Beaufort's instructions regarding the printing. TM's son would be grateful for the Herschels' gift could he express thanks himself. Would like the loan of the actinometer. Sends the dome observations.
Returns copies of the Comet observations and the formula for parallax and refraction. The 21st was a busy circle day. The mural circle is in better trim than ever. Sends a chronometer.
Barometer is swinging without encountering any accident. Believes there is to be a new clergyman at Rondebosch, the old Observatory housekeeper, John Fry, shortly to land from England. Hopes he is more adept at sermons than he was arranging the catalogue of instruments.
Encloses the sweeps for June 1836, which JH lent him. Not a word about printing, or the Tide gauge in the letters he received. Will forward the letters from G. B. Airy and Francis Baily. Thomas Henderson is about to be married. Cannot procure white deal without knots. Will try an old mast.
Much obliged for F. W. Bessel's zone. Thinks his own extra meridian observations of the comet will be respectable. Feels sure Fearon Fallows could not have approved of the supports of the dome. Has been promised the pleasure of inspecting the expenses of the Observatory. Captain J. E. Alexander and Dr. John Murray will call this morning for a parting cup of tea.
Sends formulae for dealing with the apparent differences, in viewing the comet and compared star, due to the effects of parallax and refraction.
Calms TM about not having his comet observations published yet; those published so far are not of much value.
Discusses their table of comet stars.
Wants to reset his barometer by TM's.
Sorry for surprise in church yesterday. Last minute request for JH and wife [to be godparents] was unplanned. Notes on 'Parallax & refraction.' Will soon observe all stars in [F. W.] 'Bessel's zone.'