Cites quotation from Cape Results proving that JH invented the diagonal solar eyepiece. Discusses RH's claim. Note to JH accompanies this letter.
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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.
Cites quotation from Cape Results proving that JH invented the diagonal solar eyepiece. Discusses RH's claim. Note to JH accompanies this letter.
Doubts the claim that Auguste Comte has significantly influenced English scientists. Asks whether JH believes Comte has influenced JH or others. Asks whether it is more difficult to calculate the moon's motion or the motion of a projectile through a resisting medium.
As requested, sent six copies of Quarterly Journal of Science, No. II to JH and two to Russia and Switzerland. Publisher's policy prohibits sending reprints. Sends proof of JH's plate with suggested alterations to 'Willow leaves.'
Alterations to proofs of JH's plate [on sunspots].
Regarding a musical phenomenon pointed out to him by F. A. Gore-Ouseley.
Comments on observations of sun and sunspots, especially R. C. Carrington's book on the subject.
Just received photograph of JH, because Mrs. Gordon forgot to forward it. [E. R. W. Wyndham-Quin] Lord Dunraven is jealous and wants one too. Enjoyed visit of Mr. [Juetty?] and Mrs. Gordon.
Coincidences between observations of a meteor seen by EC and another account.
Demonstrates mathematically that sun's orbit cannot be elliptical.
Corrects error in sun's velocity that CR stated in earlier letter to JH today.
Meeting of the Standards Commission on 16 March.
In response to HS's query [1864-3-1] about the influence of Auguste Comte on English scientists, JH refers HS to JH's 1845 B.A.A.S. presidential address. States that calculating the motion of a projectile through a resisting medium is extremely difficult.
Alterations to proofs of JH's plate [on sunspots].
[Charles?] Pritchard has embittered the subject so he must just acknowledge the receipt of JH's letter.
Alterations to proofs of JH's plate [on sunspots]. Explains tinting process.
Is unable to attend another meeting of the Standards Committee, due to severe illness; describes the best way to pack the standards away, and talks about the strange behavior of gallic acid.
Apologizes for printer's misspelling of JH's name on plate. Encloses letter from Hanhart Lithographers with suggestions on tinting JH's plate of solar spots.
Announces son William's engagement to Emma Hardcastle; warns son John against the Anglo-Indian ladies; JH comments at length on a problem in surveying, and concludes with the news that daughter Francisca's health is improving.
Drawing of 'the singular mottled appearance of portions of the Sun's disk ... March 19th 1864'.
Hopes his children have recovered their health. Comments on her recent photographic work. Wishes she could photograph JH.