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From:
Dionysius Lardner
To:
Sir John Herschel
Date:
19 February [1829]
Source of text:
RS:HS 11.113
Summary:

Has met the proprietors of the Cabinet Cyclopaedia. Would JH be agreeable to write an article on Astronomy or Optics, instead of Light? Will approach David Brewster regarding Light.

Contributor:
John Herschel Project
From:
Joseph Johann Littrow
To:
Sir John Herschel
Date:
[18 October 1829]
Source of text:
RS:HS 11.256
Summary:

Is sending papers for the Astronomical Society Memoirs, on telescope lenses and the construction of telescopes, planetary observations, and the use of equatorial telescopes. Is anxious to see JH's writings on light and his nebulae catalogue.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Francis Lunn
Date:
[1829?]
Source of text:
RS:HS 11.414 & 21.37
Summary:

Hears that the editors of Encyclopaedia Metropolitana have taken exception to JH's plan to write a work on Light for the Cabinet Cyclopaedia. Gives his views why the works should not conflict.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Henry Kater
Date:
[19 November 1829]
Source of text:
RS:HS 21.50
Summary:

About the use of the collimator, together with some family news.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
John Thomas Graves
Date:
[13 0March 1829]
Source of text:
TCD 10047/30
Summary:

Is pleased that the R.S.L. has decided to publish JG's paper [on logarithms, which JH earlier recommended JG withdraw from consideration; see JH's 1829-1-24]. Please convey JH's thanks to W. R. Hamilton for his letter supporting JG's paper.

Contributor:
John Herschel Project
From:
Heinrich Wilhelm Matthias Olbers
To:
Sir John Herschel
Date:
[7 July 1829]
Source of text:
RS:HS 13.177
Summary:

About JH's work in reducing the observations of many nebulae. WO also speaks about JH's aunt Caroline.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
John Thomas Graves
Date:
[24 January 1829]
Source of text:
RS:HS B26.65 & 66 (C: TCD 4015:112)
Summary:

The Council of the R.S.L. has asked JH to be the referee of JG's paper on logarithms, and JH disagrees with JG in a fundamental way. JH therefore asks JG to withdraw the paper and publish it elsewhere.

Contributor:
John Herschel Project
From:
Giovanni Antonio Plana
To:
Sir John Herschel
Date:
[4 February 1829]
Source of text:
RS:HS 13.427
Summary:

Is concerned to discover if the various packages of memoirs that GP sent have been received by JH. Talks about coming to London to present several papers.

Contributor:
John Herschel Project
From:
Giovanni Antonio Plana
To:
Sir John Herschel
Date:
[11 October 1829]
Source of text:
RS:HS 13.428
Summary:

Is preparing to observe the occultation of Aldebaran. Seeks JH's comments on GP's position on the perturbations of Jupiter and Saturn compared to P. S. Laplace's work on the same subject. Comments further on the sending and receiving of packages of memoirs.

Contributor:
John Herschel Project
From:
Giovanni Antonio Plana
To:
Sir John Herschel
Date:
[24 June 1829]
Source of text:
RS:HS 13.429
Summary:

Pleased to hear that JH received GP's memoirs. Comments on the nature of GP's response to an error on one of GP's memoirs on planetary perturbations. Expresses sorrow at the deaths of W. H. Wollaston, Humphry Davy, and Thomas Young.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
[Mary Baldwin]
Date:
[1829 to 1832]
Source of text:
TxU:H/L-0059; Reel 1054
Summary:

JH's health good. Expects fatiguing day tomorrow. Will meet MB for dinner. Give JH's love to Margaret. William brought good news of JH's mother.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
[Mary Baldwin]
Date:
[8 July 1829]
Source of text:
TxU:H/L-0064; Reel 1054
Summary:

JH and Margaret will arrive at Verdun tonight. Concerned for health of JH's mother and competence of doctors. Gratitude for care given by MB and Mrs. Stewart.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Mary Pitt Herschel
Date:
[5 March 1829]
Source of text:
TxU:H/L-0521.1; Reel 1053
Summary:

JH's and Margaret's honeymoon journey through Buckinghamshire. Concern for MH's confinement.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Mary Pitt Herschel
Date:
[17 April 1829]
Source of text:
TxU:H/L-0521.2; Reel 1053
Summary:

JH and Margaret will see MPH on Monday. Rode along Wye River and visited ruins of Tintern Abbey by full moonlight last night.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Mary Pitt Herschel
Date:
[14 May 1829]
Source of text:
TxU:H/L-0521.3; Reel 1053
Summary:

Margaret's cold developed into serious fever, similar to those of Isabella and Mrs. Stewart. Financial transactions. Visited Duke of Wellington yesterday with Wolryche Whitmore on behalf of Charles Babbage. Fears Babbage's case will not go well. James Grahame is in London. Mrs. Stewart asks if Isabella and her maid Catherine may stay at Slough. Received visits from Somervilles, Katers, and Dunlops. Death of Thomas Young.

Contributor:
John Herschel Project
From:
Margaret Brodie Herschel
To:
Mary Pitt Herschel
Date:
[15 May 1829]
Source of text:
TxU:H/L-0521.4; Reel 1053
Summary:

Isabella is eager to visit Slough. Called today on Charles Babbage's mother, who is anxious about her son. JH believes Babbage is reconciled to loss of government support. Lists social visitors. James Grahame plans to take daughter Matilda back to Nantes. Sir Edward Parry leaves for Australia for five years. [JH note:] Do not sell [horse] Zephyr until JH returns.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Mary Pitt Herschel
Date:
[24 May 1829]
Source of text:
TxU:H/L-0521.5; Reel 1053
Summary:

JH's and Margaret's voyage from London with John Stewart and Mrs. Tucker. Met R. H. Inglis on ship. Plan to go to Cassell or St. Omer tomorrow. News of Stewart family.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Mary Pitt Herschel
Date:
[30 May 1829]
Source of text:
TxU:H/L-0521.6; Reel 1053
Summary:

Scenes in France and Flanders. Hotel is adjacent to king's palace. Made drawings of cathedral yesterday. Visited Waterloo today.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Mary Pitt Herschel
Date:
[7 June 1829]
Source of text:
TxU:H/L-0521.7; Reel 1053
Summary:

Tour of Brussels. Music festival in progress. Met Belgian artists F. J. Navez and J. D. Odevaere. Dined with L. A. J. Quetelet. Met C. J. Keverberg, cofounder [with Johannes van den Bosch] of colonies at Frederiksoord and Hoogstraeten. Day in forest of Soignies. Journey from Brussels through Liege. Industrial activity at Seraing. [Letter continued 8 July:] Describes city of Aix-la-Chapelle.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Mary Pitt Herschel
Date:
[15 June 1829]
Source of text:
TxU:H/L-0521.8; Reel 1053
Summary:

Scenery along Rhine river. Visit to Bonn, where party was received by A. W. Schlegel, translator of Shakespeare into German, and geologist J. J. Nöggerath. [Letter continued in Andernach:] John Stewart is becoming good artist. [Letter continued 17 June in Koblenz:] Received mail from Slough. Itinerary for Germany and Switzerland.

Contributor:
John Herschel Project