Informs JE what would be the cost for transcription of the G. W. Leibniz letter requested by JE [see JH's [1846]-11-5]. Mentions controversy over discovery of Neptune.
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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.
Informs JE what would be the cost for transcription of the G. W. Leibniz letter requested by JE [see JH's [1846]-11-5]. Mentions controversy over discovery of Neptune.
Has discovered a flaw in the theory of actinometer observations. Realizes that JH's actinometer observations at the Cape may be useless and that observations made at Government and East India observatories should be suspended.
Expresses opinions about the medal fiasco at the R.A.S., and in so doing, also defends G. B. Airy. JH is very concerned about the mean attacks being made on various people over the Neptune discovery controversy. Makes especially strong statements in a PS written on Feb. 21.
Apologizes to JH for worrying him about the printing of J. J. L. Lalande's Catalogue of Those Stars in the Histoire céleste française....
Discusses the cost of printing and publishing J. J. L. Lalande's Catalogue of Those Stars in the Histoire céleste française and of N. L. Lacaille's Catalogue of 9766 Stars in the Southern Hemisphere [for which JH wrote the Preface]. Hopes to have both books published by the end of April.
Copies of 1847-2-20 letter will be sent to observatories utilizing actinometers. Earlier series will be replaced with accurate figures. Suggests method to measure temperature in actinometers.
Comments relating to G. W. Leibniz correspondence [see JE's 1846-9-22]; comments on naming the new planet Neptune.
W. R. Grove and JG would like an opportunity of discussion with JH on a scientific matter. Will visit him if necessary.
Nothing more has been done with J. J. L. Lalande's Catalogue of Those Stars in the Histoire céleste française...; WS hopes to spend more time on it henceforth. WS also has been too busy to oversee the progress on the bust of Francis Baily.
Plans to send parcel to observatory at Cape of Good Hope; does JH have anything to include?
Believes all actinometric measurements made are useless because they did not take into account the rate of expansion of the liquid, which is not constant.
Regrets he was unable to see JH when in town last week. Outlines the scheme for a new club.
Plans to write John Russell in an effort to secure a pension for Thomas Maclear; asks for R.A.S. and WS's support. Asks WS to obtain some facts relevant to pension request.
Glad JH is writing the meteorology. Collecting materials for charts of ocean. Forwards some of this to JH for comments.
Sympathizes with JH's feelings of regret over actinometer readings. Has procured a new thermometer and carried out experiments toward correction of actinometers.
Is desirous of procuring impressions of prismatic spectra from all parts of the globe. These should show the chemical influence of the solar rays. The B.A.A.S. may be able to help or Colonel Edward Sabine. Can JH use his influence?
Asks WS if possible to enclose a note by Francis Beaufort to John Russell concerning request for pension for Thomas Maclear. Lays aside double star observations; continues work on orbit equation.
In response to a request, JH is not willing to part with any letters from his father, William, but will send one of William Herschel's notes to his sister, Caroline.
Thanks for his note. Is writing to remove any misconceptions JH may have about the proposed new club. Michael Faraday will be joining on condition that there will be no dinners.
W. S. Jacob sends Alpha Centauri observations to R.A.S.; uses JH's Cape Results as a guide to double stars.