A note accompanying some papers on the geodesic work carried out in Germany.
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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.
A note accompanying some papers on the geodesic work carried out in Germany.
Has been reading JH's communication to the P.M. [on solar spectrum] and wishes to point out that RH was the first to carry out those experiments, which are recounted in the P.M. for 1840.
Reports on GM's health and immediate travel plans.
Has ventured on the risks of an election to the R.S.L. and would like JH's support and influence with those on the Council. Was prevented from visiting Dover. Sails for Canada on 4 Mar.
Extract from observations of 70 Ophiuchi by F. W. Bessel. Results agree with WS's measurements by different method and increase WS's confidence. Hopes for more information on Gamma Virginis before finalizing WS's manuscript.
Describes experiments in the electrochemical decomposition of metallic salts.
Sent JH's letter concerning actinometers to all observatories. [Johann] Lamont must be informed of recent work. ES comparing fluctuations of direction and force at Toronto and Van Diemen's Land. Mentions [G. B.] Airy and air currents.
Thanks JH for favorable comments on BS's biography of [Charles?] Mason. Has been given part of an unusual meteorite fallen in the Cape. If JH has a piece of it, hopes to obtain JH's opinion.
Clarification of priority to the prismatic analysis of the Daguerreotype photograph; comments on the location of a limiting diaphragm in a camera obscura.
Has 50 copies of JH's paper ['On the Action of the Rays of the Solar Spectrum on the Daguerreotype Plate'] for P.M. printed exclusively for JH. Asks opinion of papers for next issue of Scientific Memoirs.
Regarding his brother-in-law's sale of property. Sorry he was unable to meet him at Dover recently. Mother in good health.
Regarding the deeds for CB's brother-in-law. Is sorry that CB could not see the blasting of the cliffs at Dover.
Note of thanks for paper of JH's; replies with a printing of a talk by FB about William Herschel.
Thanks for his paper on the Earth. Wishes his own Cape work was finished and of the same standard as FB's work. Regarding support for Dr. W. B. O'Shaughnessy when his election to the R.S.L. is being considered.
Will start work on the Southern Constellations without delay. Thanks for his remarks on W. B. O'Shaughnessy.
Regarding his own support for W. B. O'Shaughnessy. Star reform in the Southern hemisphere.
Agrees to provide Josiah Quincy with extracts from letters by James Grahame. Highlights of Grahame's life.
Thanks for the 'exquisite specimen of Daguerreotype.' Speculates on the possibility of making Daguerreotype portraits small enough to be set in rings or in shirt pins.