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Correspondence Explorer

Choose two people to view all letters between them.

Showing 47 letters from 1825–1830

12 letters from Davies Gilbert; 35 letters from John Frederick William Herschel

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John Frederick William Herschel invents the actinometer to measure the heating power of the Sun’s rays

1825

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

Copy of a letter. Some Royal Society [of London] business matters.

16 January 1827 Sender: John Frederick William Herschel Reference number: HS/20/245

Copy of a letter. On the poor functioning of the Royal Society [of London] Glass Committee.

17 April 1827 Sender: John Frederick William Herschel Reference number: HS/20/252

Copy of a letter. Business matters for the Royal Society [of London]

6 September 1827 Sender: John Frederick William Herschel Reference number: HS/20/261

Copy of a letter. Comments on geodesical measurements being made in Ireland.

5 October 1827 Sender: John Frederick William Herschel Reference number: HS/20/263

Copy of a letter. Responds to having been chosen to be the Vice-President of the Royal Society [of London]

28 December 1827 Sender: John Frederick William Herschel Reference number: HS/20/270

Copy of a letter. On the poor functioning of the Royal Society [of London] Glass Committee.

17 April 1827 Sender: John Frederick William Herschel Reference number: HS/26/30
1828

Copy of a letter. Last night he discovered Encke's Comet. Gives readings.

17 September 1828 Sender: John Frederick William Herschel Reference number: HS/8/117
1829

John Frederick William Herschel and Margaret Brodie Stewart are married in London

3 March 1829

Draft letter. Received his letter of the 17th today. Does not think he can change his mind about resigning from the council.

19 November 1829 Sender: John Frederick William Herschel Reference number: HS/8/121

Copy of a letter. Asks Davies Gilbert to respond to a note from George Rümker.

1829-4 Sender: John Frederick William Herschel Reference number: HS/21/45
1830

John Frederick William Herschel is elected Foreign correspondent of the Académie des sciences

1830

Birth of Caroline Emilia Mary Herschel, daughter of John Frederick William Herschel and Margaret Brodie Stewart

31 March 1830

John Frederick William Herschel is nominated for the presidency of the Royal Society, loses by 8 votes to the Duke of Sussex

30 November 1830

Copy of a letter. Suggests Peter Barlow should test his telescope by carrying out a series of observations.

19 March 1830 Sender: John Frederick William Herschel Reference number: HS/8/126