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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.
Has received JH's letter of 29 October. No need to thank for meteorological observations. Done in interest of science. Sends measurements of December 1837 and other bulletins. Asks JH to send his extra copy of AQ's Correspondence mathématique of July 1838 to [J. D.] Robertson. Asks more about satellites of Saturn. Thanks for information on meteors.
Discusses observation of meteors. Sends observations of last solstice and details of that night's constellations. Offers results of observations of occultation of Gamma[?] Tauri[?].
Sends continuation of Belgian meteorological observations. Just finished magnetic observations. Plans to continue certain ones. Regrets being alone, without aids, 'in front of the transit instrument, the mural circle and the equatorial.'
Addresses a few last words before departing for Italy with his wife. Sends 3 memoirs just published. Will be in Paris to observe meteors. Proposes to redo terrestrial magnetism observations in Italy.
Is comparing 'points and measures' of new stations with [François] Arago. Also busy with daguerreotypes. Thanks for encouragements. Has necessary instruments for meteorological and magnetical observations. Mentions work done and astronomers met on Italy trip. Discusses Prince Albert.
Sends publications from Royal Academy and Brussels Observatory. Asks 'particular indulgence' for one about vapors. Is now able to do observations required by R.S.L. A Gauss instrument has been mounted. Gives times of observations each day. Continues horary observations.
Still waits for the instrument that Edward Sabine had built. Wishes to make actinometer observations but has no instrument. Asks JH to have one made. Sends observations from Italy trip to Sabine to present to R.S.L. Continues horary observations.
Royal Academy of Sciences and Fine Arts acknowledges receipt of JH's 'On the Chemical Action of the Rays of the Solar Spectrum.'
Refers to meteors of August. JH's account similar to [Edward] Herrick's. More meteors seen in America. Sends magnetic and meteorological works. Had hoped to go to Glasgow.
Says JH's interest in AQ's work has been source of motivation. Notes that on 21 September and 21 December, aurora borealis and magnetic perturbations have been spotted. Asks where to procure an actinometer in England.
Is thrilled about 4 aides to help with meteorological and magnetic observations. Points out that number of stations participating in horary observations increased to 22. Lists them. Hopes to go to Plymouth [B.A.A.S. meeting].
Announces results of last observations, both magnetic and meteorological. Hopes to see JH.
Found letter sent at the R.S.L. Left with William Whewell for Plymouth. Results are forthcoming on meteorological observations that JH suggested. Regrets not seeing JH in England.
Presents best wishes to Lady Herschel. Regrets not having met on account of meeting with [G. B.] Airy at Greenwich. Is keeping four pictures of JH and has offered 2 additional ones to Prince Albert.
Regrets not having seen JH in England. Discusses horary observations. Lists current projects. Talks about C. F. Gauss's reactions to magnetic observations by JH in two hemispheres and difference of lines for Europe and America. Gives results for August meteors.
System of meteorological observation works well but no English station. AQ is willing to publish results in England if need be. Points out additional observers for September.
Discusses meteorological observations. Stations increased from 26 to 28. Talks about 36 hours versus 24 hours periodical observations and asks for JH's opinion.
As 'perpetual Secretary' of the Academy, AQ expresses thanks for JH's work 'On the Advantages to be Obtained by a Revision and Re-arrangement of the Constellations.'
Thanks for letter of 3 December and for encouragement. Informs JH that 30 observatories participated in observation of winter solstice. Is beginning to study humans in their different relations.
Sends works on meteorology and instructions for natural periodic phenomena. More proselytes in horary observations. Asks for JH's recommendations for those observing meteors in the other hemisphere.