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1820-1829::1829::10 in date 
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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:
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:
Mary Pitt Herschel
To:
Sir John Herschel
Date:
[22 October 1829]
Source of text:
TxU:H/M-0625.10; Reel 1086
Summary:

If Margaret Brodie Herschel is too ill, do not travel to London for MPH's sake. Will send Mrs. Moorsom to Slough.

Contributor:
John Herschel Project