Search: Herschel, John in addressee 
1830-1839::1830 in date 
letter in document-type 
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Showing 41–60 of 106 items

Herschel2090

From:
Stephen Peter Rigaud
To:
Sir John Herschel
Date:
[6 September 1830]
Source of text:
RS:HS 14.339
Summary:

Discusses [James] Bradley's observations of double stars. Asks JH for assistance.

Contributor:
John Herschel Project

Herschel2091

From:
Stephen Peter Rigaud
To:
Sir John Herschel
Date:
[8 September 1830]
Source of text:
RS:HS 14.340
Summary:

Thanks JH for letter [see SR's 1830-9-6]. Discusses publication of [James] Bradley's observations. Congratulates JH on confirming satellites of Uranus seen by William Herschel.

Contributor:
John Herschel Project

Herschel2092

From:
Stephen Peter Rigaud
To:
Sir John Herschel
Date:
[21 September 1830]
Source of text:
RS:HS 14.341
Summary:

Discusses [James] Bradley's observations and possibility of double stars [see SR's 1830-9-6]. Seems no double stars are readily apparent. Discusses another experiment.

Contributor:
John Herschel Project

Herschel2093

From:
Stephen Peter Rigaud
To:
Sir John Herschel
Date:
[30 October 1830]
Source of text:
RS:HS 14.342
Summary:

Discusses eighteenth-century observations from Greenwich. Describes curious observations of stars in Gamma Virginis and Polaris.

Contributor:
John Herschel Project

Herschel2166

From:
Alexander Rogers
To:
Sir John Herschel
Date:
[1 January 1830]
Source of text:
RS:HS 14.411
Summary:

Sent some Edinburgh ale to the Herschels. Will not patent telescope. Discusses Giovanni Santini's article on telescopes in the Quarterly Journal.

Contributor:
John Herschel Project

Herschel2167

From:
Alexander Rogers
To:
Sir John Herschel
Date:
[6 December 1830]
Source of text:
RS:HS 14.412
Summary:

Pleased that JH enjoyed the ale. Asks whether comets could be portions of the luminous atmosphere surrounding the sun.

Contributor:
John Herschel Project
Text Online

Herschel2639

From:
Mary Somerville
To:
Sir John Herschel
Date:
[1 March 1830]
Source of text:
RS:HS 16.330
Summary:

Thanks JH for criticisms of her manuscript. Will outline principles more carefully. Hopes Lady Herschel is 'gaining strength.'

Contributor:
John Herschel Project, Brigitte Stenhouse
Text Online

Herschel2640

From:
Mary Somerville
To:
Sir John Herschel
Date:
[6 March 1830]
Source of text:
RS:HS 16.331
Summary:

Sends first revised pages [of MS's Mechanism of the Heavens] back for further opinion. Highly respects JH's comments and believes he will be a truthful critic as a friend.

Contributor:
John Herschel Project, Brigitte Stenhouse
Text Online

Herschel2642

From:
Mary Somerville
To:
Sir John Herschel
Date:
[1830-3-9 or later]
Source of text:
RS:HS 16.333
Summary:

Thanks JH for his communications. Anxious to get into the proof JH criticized. Sends [Joseph] LaGrange's variations of constant quantities.

Contributor:
John Herschel Project, Brigitte Stenhouse
Text Online

Herschel2644

From:
Mary Somerville
To:
Sir John Herschel
Date:
[5 April 1830]
Source of text:
RS:HS 16.335
Summary:

Offers congratulations on arrival of JH's first child. Thanks him for communicating his thoughts on her manuscript [Mechanism of the Heavens] at such a time.

Contributor:
John Herschel Project, Brigitte Stenhouse
Text Online

Herschel2645

From:
Mary Somerville
To:
Sir John Herschel
Date:
[15 May 1830]
Source of text:
RS:HS 16.336
Summary:

Sending back part of manuscript [Mechanism of the Heavens] for criticism. Hopes Mrs. Herschel and baby are well.

Contributor:
John Herschel Project, Brigitte Stenhouse
Text Online

Herschel2647

From:
Mary Somerville
To:
Sir John Herschel
Date:
[23 October 1830]
Source of text:
RS:HS 16.338
Summary:

Sends a method of estimating the variations in the elements of orbits during the perturbations in longitude and distance. Used it in manuscript when examining Saturn and Jupiter.

Contributor:
John Herschel Project, Brigitte Stenhouse
Text Online

Herschel2648

From:
Mary Somerville
To:
Sir John Herschel
Date:
[1830]
Source of text:
RS:HS 16.339
Summary:

Asks JH to send the astronomical part of her manuscript [Mechanism of the Heavens] by Mr. Richards on Thursday.

Contributor:
John Herschel Project, Brigitte Stenhouse
Text Online

Herschel2649

From:
Mary Somerville
To:
Sir John Herschel
Date:
[1830]
Source of text:
RS:HS 16.340
Summary:

Used a counter spell to keep the moon at a 'due distance.' Her previous computations were careless. Asks JH to return part of her manuscript [Mechanism of the Heavens] for corrections.

Contributor:
John Herschel Project, Brigitte Stenhouse

Herschel2695

From:
William Somerville
To:
Sir John Herschel
Date:
[23 February 1830]
Source of text:
RS:HS 16.387
Summary:

Thanks JH for attention to Mrs. Somerville's work [Mechanism of the Heavens]. Please send any part of the work that he has finished.

Contributor:
John Herschel Project

Herschel2696

From:
William Somerville
To:
Sir John Herschel
Date:
[23 March 1830]
Source of text:
RS:HS 16.388
Summary:

Mrs. Somerville cannot decide what to call her book [Mechanism of the Heavens]. Please advise so publishing can commence.

Contributor:
John Herschel Project

Herschel3006

From:
Wilhelm Struve
To:
Sir John Herschel
Date:
[10 March 1830]
Source of text:
RS:HS 17.116
Summary:

Hopes to meet JH and [James] South in summer. Announces emperor's decision to support measurement of the 3.5° latitude meridian throughout the entire Russian empire. WS is responsible for directing work in the north. Emphasizes the importance of maintaining correct linear standards uniform with both France and England. Requests a copy of the English standard so as to compare it with the Russian measurements of degrees.

Contributor:
John Herschel Project

Herschel3007

From:
Wilhelm Struve
To:
Sir John Herschel
Date:
[1 May 1830]
Source of text:
RS:HS 17.117
Summary:

Requests advice in determining optimal time for visit to England. Thanks for invitation to Slough. Mentions completion of his sixth volume of observations, the introduction of which could prove interesting to JH. Fascinated by JH's observation of a sixth star in the trapezoid of Orion.

Contributor:
John Herschel Project

Herschel3008

From:
Wilhelm Struve
To:
Sir John Herschel
Date:
[22 June 1830]
Source of text:
RS:HS 17.118
Summary:

Will arrive in England in mid-August. Mentions convention of German scientists on 18 September and invites JH.

Contributor:
John Herschel Project

Herschel3009

From:
Wilhelm Struve
To:
Sir John Herschel
Date:
[7 August 1830]
Source of text:
RS:HS 17.119
Summary:

Briefs JH on his productive Paris visit and offers details concerning his upcoming England visit.

Contributor:
John Herschel Project
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