Thanks GS for a number of his papers on railway bridge fractures, gravitation, and the spectrum.
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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 GS for a number of his papers on railway bridge fractures, gravitation, and the spectrum.
Replies to several queries about papers of JH. JH describes the accidental production of some interesting copper salt crystals.
Thanks GS for his paper on fluorescent spectra; JH is interested in having these rays used on quartz, hoping to find his 'thermic' rays acting.
Writes to acknowledge receipt of a testimonial on behalf of [George] Wilson.
Comments on color as a sensation, and on GS's thoughts on 'lavender rays.'
Advises GS against spending £800 to verify the available drawings of Saturn; instead JH suggests alternative methods.
Asks GS about ordering instruments from [George] Wilson.
Inquiring about the cost of instruments being shipped.
Acknowledges receipt of a paper by [William] Pole, which JH will review.
Needs more time for reviewing Pole's paper [see JH's 1856-10-12].
Is sending in JH's report on Pole's paper [see JH's 1856-11-9].
Thanks the council of the R.S.L. through GS for the gift of a portrait of Nicholas Copernicus.
Is willing to have his review sent on to the author, [C. P.] Smyth; asks GS to send the R.S.L.'s copy of Keith Johnson's Physical Atlas to JH.
Carefully describes how to pack actinometers being shipped to India.
Agrees to allow Lord Oxmantown [Laurence Parsons] to add JH's remarks to Lord Oxmantown's paper.
Describes problem with spectral lines in telescope while trying to understand William Huggins's results.
Correction to be made in JH's biographical sketch of William Whewell.
Forwards letter from G. A. Erman of Berlin requesting that B.A.A.S. fund [H. J. R.] Petersen's study of terrestrial magnetism.
Corrects date on publication by G. A. Erman.
Thanks GS for 'canary' glass. Pleased with GS's 'photological' research, extending the spectrum.