Correspondence map
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John Pond
John Frederick William Herschel
John Frederick William Herschel and Charles Babbage travel through France to Italy and Switzerland.
1821
John Frederick William Herschel publishes in the Philosophical Transactions of the Royal Society.
1821:
John Frederick William Herschel publishes “On the aberrations of compound lenses and object-glasses" in the Philosophical Transactions of the Royal Society.
John Frederick William Herschel receives the Copley Medal of the Royal Society for his papers printed in the Philosophical Transactions
1821
Autograph letter signed by sender. Provides a detailed critique of a mathematical paper by [J. M. H.] Wronski, which John Pond presented on Wronski's behalf to the Royal Society [of London] Suggests that John Pond urge Wronski to withdraw the paper.
29 October 1821 Sender: John Frederick William Herschel , Sir; John Frederick William Herschel Reference number: HS/14/30
Copy of letter, copied as part of the correspondence project led by Colonel John Herschel FRS following the death of his father. Provides a detailed critique of a mathematical paper by [J. M. H.] Wronski, which John Pond presented on Wronski's behalf to the Royal Society [of London] Suggests that John Pond urge Wronski to withdraw the paper.
29 October 1821 Sender: John Frederick William Herschel Reference number: HS/20/126
Taking issue with a paper sent to the Royal Society by Josef Hoëné de Wronski on the equilibrium of fluids.
1 November 1821 Sender: John Frederick William Herschel Reference number: MM/6/74
1822
Death of Sir William Herschel FRS
25 August 1822
Autograph letter signed by sender. Thanks for sending your catalogues. Requests duplicates. Has made annotations indicating the 'quantity which Mr. [F. W.] Bessel's Instrument places the stars to the south of my determinations.' Cannot yet explain discrepancy. Unable to determine a parallactic shift for Alpha Lyrae, Alpha Aquila, or Gamma Draconis.
20 June 1822 Sender: John Pond Reference number: HS/14/31
Autograph letter signed by sender. Thanks John Frederick William Herschel for extract from a letter from [J. J.] Littrow. Discusses in detail positional determinations of various stars he has made, attempting to determine whether errors of either observations or computation have entered into his results. Reports that in general there is substantial agreement between determinations made by John Pond and those made by John Brinkley at Ireland's Royal Observatory. Mentions solar observations at Greenwich.
20 June 1822 Sender: John Pond Reference number: HS/14/32
Autograph letter signed by sender. Asks that list of errata be published before a committee meets to investigate 'the subject of Mr. Lee's [?] animadversions.'
Sender: John Pond Reference number: HS/14/33
1823
John Frederick William Herschel receives the Bakerian Medal of the Royal Society.
1823:
John Frederick William Herschel gives the Bakerian lecture “On certain Motions produced in Fluid Conductors when transmitting the Electric Current”.
1824
John Frederick William Herschel moves to 56 Devonshire St., Portland Place, London
1824
John Frederick William Herschel serves as Secretary of the Royal Society
30 November 1824
1825
John Frederick William Herschel invents the actinometer to measure the heating power of the Sun’s rays
1825
Contemporary copy in sender's hand, signed by sender. Introduces [C. T.] Largeteau from France, who wishes to receive from John Pond the observations made at Greenwich as part of the determination of the difference in longitude between the Greenwich and Paris observatories. Recounts some difficulties encountered in making the measurements.
23 July 1825 Sender: John Frederick William Herschel Reference number: HS/14/34
Copy of letter, copied as part of the correspondence project led by Colonel John Herschel FRS following the death of his father. Introduces [C. T.] Largeteau from France, who wishes to receive from John Pond the observations made at Greenwich as part of the determination of the difference in longitude between the Greenwich and Paris observatories. Recounts some difficulties encountered in making the measurements.
23 July 1825 Sender: John Frederick William Herschel Reference number: HS/20/217
1826
John Frederick William Herschel publishes in the Philosophical Transactions
1826:
John Frederick William Herschel publishes “On the parallax of the fixed stars”.
1827
Joseph Nicéphore Niépce presents his photographs in England for the first time
1827
