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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.
Thanks RS for the news of Francis Baily; requests an update on his condition. Criticizes 'reduced map' prepared by [James] Basire. Has drawn up a catalogue to go with his paper, as RS requested, arranged in regions. Praises William Whewell's choice of a bride.
Reports the birth of Amelia Herschel, JH's eighth child. Forwarding to CH an article describing the telescope of William Parsons.
The reductions for JH's Cape Results are progressing. JH's mapping work has been 'carried over the whole surface of the heavens' this year.
Thanks RH for his 'extensive and instructive view on the present state of photography.' Found many interesting results in experimenting with vegetable substances. Surprised by RH's discovery that bi-chromate of potash is a photographic substance; JH nearly achieved this result.
Unable to give any specifics concerning Louis Jacques Mandé Daguerre's new photographic process. Discovered that old paper specimens produced a much better representation of the spectrum in its natural colors than those obtained at the date of JH's paper; these results are 'light on a dark ground,' which makes JH more hopeful that colored photography will someday be perfected. Has experimented with vegetable substances.
The Herschels bought a Christmas tree this year; JH reports that his children loved it and that 'they will be sure to keep up the custom which is a very merry one.'
Has not unpacked William Herschel's letters that JH secured from the R.S.L.
Summarizes James Clark Ross's expedition to reach the Southern Magnetic Pole; JH reports that Ross has discovered that the pole lies several degrees more south than Carl Gauss had calculated.
Agrees to proposed meeting date [see GA's 1841-1-16], and encourages GA to come with a draft final report prepared.
A note to accompany proposals for the Standards Commission to consider [see GA's 1841-2-17]; twenty pages of proposals are appended.
Has received material sent by GA [see GA's 1841-3-20]; comments on the report and JH's unavailability for meetings of the Standards Commission in the near future.
Comments on additional proposals for consideration by the Standards Commission [see JH's 1841-3-20 or later].
Does not expect to come to the meeting [see GA's 1841-5-18], but sends comments on altered sections of the draft report.
Believes no error should be legally tolerated [see GA's 1841-5-24] in selling goods; thus the seller always provides a trifle over the due quantity.
Comments on the report [see GA's 1841-8-11]; wants the standards legislation to be demanding of rigor in application.
Regarding a missing picture of his father.
Please send on the picture. Hopes he had a good time in Italy.
Further comments on the Standards Commission Report [see GA's 1841-7-27].
The Ryans are in London.
Is sending him a circumpolar projection of the Southern stars. Regarding the star maps being printed by John Arrowsmith. Will visit him the following week. Has received Robert Main's paper.