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Herschel, John in author 
1840-1849::1849::04 in date 
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Herschel6999

From:
Sir John Herschel
To:
Augustus De Morgan
Date:
1849-4
Source of text:
RS:HS 23.66
Summary:

Needs to revise Outlines Astr., and will include Ernesto Capocchi's announcement of the discovery of another planet; some further corrections of JH's double star paper.

Contributor:
John Herschel Project

Herschel344

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[5] April 1849
Source of text:
RGO 6.231.396
Summary:

Responds to GA's 1849-4-4, and sends the key.

Contributor:
John Herschel Project

Herschel345

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[9 April 1849]
Source of text:
RGO 6.231.176
Summary:

Is making a case for JH's priority claims with regard to the means of determining double star orbits, in conflict with Yvon Villarceau.

Contributor:
John Herschel Project

Herschel13607

From:
Sir John Herschel
To:
[A. J. F.] Yvon Villarceau
Date:
[19 April 1849]
Source of text:
RS:HS 17.418a
Summary:

Has passed YV's memoirs on the calculation of orbits on to G. B. Airy for publication; copies will be sent [see YV's 1849-4-1]. Notes that YV's methods are similar to those of U. J. J. Leverrier.

Contributor:
John Herschel Project

Herschel347

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[19 April 1849]
Source of text:
RGO 6.231.181
Summary:

Extended comments about some of GA's statements in GA's abstract of Yvon Villarceau's papers on double stars [see GA's 1849-4-11].

Contributor:
John Herschel Project
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