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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.
Needs the name of the print seller from whom JH's cousin bought the copy of the print of JH's portrait, so RS can learn how many copies are available. RS will then know whether to 'treat with [the printer] as an honest man or a rogue.'
JH concerned not so much that a few copies of the print of JH's portrait may have been sold, but that the plate itself may have been stolen and sold. Seems relieved to know that the plate was left with the printer, not the engraver. Asks RS to make an inquiry with the printer.
Outlines theory behind and method for preparing thermographic paper, which allows observers to determine 'what share each ray of the spectrum bears in producing the observed total effects.'
Tells WT about JH developing the thermographic paper which is susceptible to 'calorific' and 'chemical' rays of light.
Sends enclosure to JH. [Humphrey] Lloyd also has a copy and Lloyd will send comments directly to JH.
Is the R.A.S. to send an address to the Queen? The diploma is ready for the King of Denmark.
Writing on behalf of John Russell, sends JH a letter to Francis Tudhope regarding the offer to Tudhope of a position teaching in the Government Schools at the Cape of Good Hope.
Writing on behalf of John Russell, informs JH that Francis Tudhope has accepted the offer of a position teaching in the Government Schools at the Cape of Good Hope. Mentions the travel arrangements for Tudhope and for the other teachers hired.
Has just seen JH's communication in the P.M. regarding an improvement to a lamp. Points out that the late Charles Seward obtained a patent for this improvement some thirty years ago.
Asks JH's opinion on a candidate for a committee position.
Regarding an address to the Queen. Hopes to see him on Thursday.
Would like to know the degree of sensibility to heat of JH's paper. The paper of W. H. F. Talbot is useless for his purpose as only violet heat affects it. Did JH use a flint glass prism for his spectrum experiments? Has he ever used photography to show the impression of polarization and diffraction?
Comments on several different reports; also on some experiments that lead JH to think much of the radiant energy of the Sun is absorbed in the atmosphere.
Has received letter and report. Will he consider by Thursday whether to refer the report back to the Committee. Does not think the balloons should be too large. Regarding the sun's effect on climate. Presumes Council cannot alter report.
Having accepted a position teaching in the Government Schools at the Cape of Good Hope, has found himself lacking important information and necessary funds for the impending voyage.
The Treasury awards AS a pension.
Announces King's enrollment as patron of R.A.S. Recalls Danish monarches who promoted astronomy. Praises Altona observatory and work of H. C. Schumacher.
On the preparation of paper to exhibit a thermal spectrum.
Regrets that JH in his address to the R.A.S. should have omitted to mention the names of P. G. le D. Pontecoulant and JL in connection with the calculation of the lunar and planetary perturbations.
JH has apparently insulted JL by crediting JL's colleagues but not JL with improvements in lunar and planetary theory. JH explains how this happened, that JH's good intentions went awry.