Search: Herschel, John in correspondent 
Plana, Giovanni Antonio in correspondent 
1830-1839 in date 
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From:
Giovanni Antonio Plana
To:
Sir John Herschel
Date:
[24 October 1832]
Source of text:
RS:HS 13.430
Summary:

Still worrying about planetary perturbations of Jupiter and Saturn [see GP's 1829-10-11]. Seeks advice on the matter from JH, and asks JH to make any necessary corrections on papers GP has sent.

Contributor:
John Herschel Project
From:
Giovanni Antonio Plana
To:
Sir John Herschel
Date:
[23 January 1833]
Source of text:
RS:HS 13.431
Summary:

Excerpts from a letter to the R.S.L. that accompanied copies of GP's work on lunar theory.

Contributor:
John Herschel Project
From:
Giovanni Antonio Plana
To:
Sir John Herschel
Date:
[9 September 1834]
Source of text:
RS:HS 13.432
Summary:

In his travels, GP met James Stewart (Margaret Herschel's brother); gives GP's assessment of James Stewart. Comments on JH's intended voyage to the Cape, and wishes him well.

Contributor:
John Herschel Project
From:
Giovanni Antonio Plana
To:
Sir John Herschel
Date:
[12 May 1836]
Source of text:
RS:HS 13.433
Summary:

Comments on communications with the Cape. James Stewart (Margaret Herschel's brother) is well liked by the family. GP is sending on his meteorological observations, noting that he has reduced his emphasis on astronomy. Is working on a long memoir on integral calculus. [Many parts of the letter are illegible.]

Contributor:
John Herschel Project
From:
Giovanni Antonio Plana
To:
Sir John Herschel
Date:
[6 January 1838]
Source of text:
RS:HS 13.434
Summary:

Has made meteorological observations as desired by JH, and has sent and received various sets of such observations. Would like to come to England to visit JH, but first wants to find a husband for his only daughter. GP's assistant at the observatory died and he is looking for a replacement. [Many parts of the letter are illegible.]

Contributor:
John Herschel Project
From:
Giovanni Antonio Plana
To:
Sir John Herschel
Date:
[21 August 1839]
Source of text:
RS:HS 13.435
Summary:

Reports on sending and receiving barometric and magnetic observations. GP's 20 year old daughter is still not married [see GP's 1838-1-6], but GP believes her chances are improving.

Contributor:
John Herschel Project