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Herschel, John in correspondent 
Struve, Wilhelm in correspondent 
1830-1839 in date 
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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

Herschel2869

From:
Sir John Herschel
To:
Wilhelm Struve
Date:
[10 April 1830]
Source of text:
RS:HS 21.68
Summary:

Glad WS is coming to England but cautions that London empties in June. Congratulates WS on measurement of a 'great Northern arc.' Complains about the division of the Royal Society into 'parties'. Adds [James] South's results showing a sixth star, nearer than WS's fifth, in trapezium of Orion.

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

Herschel3010

From:
Wilhelm Struve
To:
Sir John Herschel
Date:
[4 September 1830]
Source of text:
RS:HS 17.120
Summary:

Deeply regrets having missed JH before departure. Thanks for priceless gift of William Herschel's works and for the glimpses of nebulae. Requests his catalogue on noteworthy nebulae when completed.

Contributor:
John Herschel Project

Herschel3011

From:
Wilhelm Struve
To:
Sir John Herschel
Date:
[16 October 1830]
Source of text:
RS:HS 17.121
Summary:

Reminds WS to select certain nebulae for 'communal observation.' Received good news from Finland. Gave [James] South the list of 36 double stars to be observed. Stars compare except result in smaller distances than JH's and South's observations.

Contributor:
John Herschel Project

Herschel1018

From:
Sir John Herschel
To:
Wilhelm Struve
Date:
[17 May 1831]
Source of text:
RS:HS 25.2.7
Summary:

Discusses a variety of observations related to double stars, and asks FS to make some specific observations to compare with JH's work. Reveals JH's dream of going to the Southern Hemisphere for a number of years, but asks FS to keep it quiet, as 'many ties' stand in the way.

Contributor:
John Herschel Project

Herschel3012

From:
Wilhelm Struve
To:
Sir John Herschel
Date:
[17 March 1832]
Source of text:
RS:HS 17.122
Summary:

Asks JH to thank Henry Kater for his comparison of WS's scale to that of the standard-yard. Mentions breakout of cholera as reason for delay in responding. Includes many measurements of year's work.

Contributor:
John Herschel Project

Herschel1042

From:
Sir John Herschel
To:
Wilhelm Struve
Date:
[12 May 1832]
Source of text:
RS:HS 25.3.7
Summary:

Is now committed to the Cape journey, and will be occupied most of the time till then with the reduction of JH's nebulae observations. Comments on several other astronomical matters. [Letter is finished on board a steam packet on the way to Hamburg to visit JH's aunt, Caroline, dated 1832-6-9.]

Contributor:
John Herschel Project

Herschel1044

From:
Sir John Herschel
To:
Wilhelm Struve
Date:
[23 September 1832]
Source of text:
RS:HS 25.3.10
Summary:

Compares in detail observations of several double stars made by several astronomers, and comments on differences; JH also describes a sighting of Biela's comet.

Contributor:
John Herschel Project

Herschel3013

From:
Wilhelm Struve
To:
Sir John Herschel
Date:
[4 January 1833]
Source of text:
RS:HS 17.123
Summary:

Mentions [James] South's visit to Dorpat. Includes his observations of the past year. Concedes that JH saw Biela's comet first.

Contributor:
John Herschel Project

Herschel1045

From:
Sir John Herschel
To:
Wilhelm Struve
Date:
[12 March 1833]
Source of text:
RS:HS 25.3.11
Summary:

The observational data from FS regarding Gamma Virginis are so significant that JH begs FS to continue to observe and send JH the results. Comments on a number of other astronomical observational matters.

Contributor:
John Herschel Project

Herschel3014

From:
Wilhelm Struve
To:
Sir John Herschel
Date:
[13 August 1833]
Source of text:
RS:HS 17.124
Summary:

Sends letter from 'chronometer expedition' in Baltic Sea under the leadership of [T. F.] Schubert and supported by the Prussian, Danish, and Swedish governments. Mentions talk written for a larger audience in French publication. Envies JH's opportunity to observe the southern hemisphere.

Contributor:
John Herschel Project

Herschel2870

From:
Sir John Herschel
To:
Wilhelm Struve
Date:
[18 September 1833]
Source of text:
RS:HS 21.147
Summary:

Informs JH that WS has sent fifth catalogue of double stars by [H. C.] Schumacher. Provides African address. Departure by 20 October on 'Mt. Stewart Elphinston—a superb India ship.' Notifies of [Thomas] Maclear's succeeding [Thomas] Henderson at Cape observatory.

Contributor:
John Herschel Project

Herschel3015

From:
Wilhelm Struve
To:
Sir John Herschel
Date:
[5 October 1833]
Source of text:
RS:HS 17.125
Summary:

Promises to write JH more often at the Cape. Is waiting for JH's work on nebulae. Promises to send his work on 3000 double stars. Plans to begin work on parallax of fixed stars.

Contributor:
John Herschel Project

Herschel2871

From:
Sir John Herschel
To:
Wilhelm Struve
Date:
[29 October 1833]
Source of text:
RS:HS 21.153
Summary:

Confirms receipt of WS's last letter from Hamburg. Advises of his departure to Cape. Requests 'measure of 3000 double stars.' Directs WS's attention to 'remarkable stars' and urges WS to procure JH's Astronomy. Asks WS to solicit [F. W.] Bessel's correspondence for JH. Adds [W. H.] Smyth's address.

Contributor:
John Herschel Project

Herschel1049

From:
Sir John Herschel
To:
Wilhelm Struve
Date:
[10 June 1834]
Source of text:
RS:HS 25.3.19
Summary:

Describes enthusiastically the journey to the Cape, the beauties of the country, and the joys of astronomical observing there.

Contributor:
John Herschel Project

Herschel3016

From:
Wilhelm Struve
To:
Sir John Herschel
Date:
[10 February 1836]
Source of text:
RS:HS 17.126
Summary:

Reports the death of family members. Reveals news of new Pulkowa observatory. Has completed his work on micrometer measurements, resulting in 10,500 observations. Includes lists of aspects of his works.

Contributor:
John Herschel Project

Herschel1062

From:
Sir John Herschel
To:
Wilhelm Struve
Date:
[11 February 1838]
Source of text:
RS:HS 25.5.10
Summary:

Pleased with the observations and astronomical literature JH received from FS; JH is packing up for the return to England; comments on causes of variations in stellar magnitude and several other astronomical topics.

Contributor:
John Herschel Project
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