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Herschel, John in author 
1840-1849::1843::10 in date 
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Herschel10434

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[1843]-10
Source of text:
TxU:H/L-0013.2; Reel 1054
Summary:

Recommends buying optics for 7.5-inch telescope from Metz and Mahlers in Munich and having those mounted in London.

Contributor:
John Herschel Project

Herschel8304

From:
Sir John Herschel
To:
William Radcliffe Birt
Date:
[3 October 1843]
Source of text:
RS:HS 19.110
Summary:

Sends Howard Elphinstone's barometer observations [at Ore, near Hastings].

Contributor:
John Herschel Project

Herschel6135

From:
Sir John Herschel
To:
Francis Baily
Date:
[8 October 1843]
Source of text:
RS:HS 3.261 (C: RS:HS 25.8.60)
Summary:

Has to come to town for a Trustee meeting of the British Museum and wonders whether it would be convenient for him to visit Tavistock Place to consult him on various matters.

Contributor:
John Herschel Project

Herschel11633

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[13 October 1843]
Source of text:
TxU:H/L-0013.1; Reel 1054
Summary:

Urges doubling number of lunar observations.

Contributor:
John Herschel Project

Herschel12928

From:
Sir John Herschel
To:
Peter Mark Roget
Date:
[14 October 1843]
Source of text:
TxU:H/L-0340; Reel 1054
Summary:

Construction of JH's new instrument for photographing spectral lines is still incomplete, and A. E. Becquerel has already announced discovery. JH will return £100 granted to JH by R.S.L.

Contributor:
John Herschel Project

Herschel3368

From:
Sir John Herschel
To:
[R.S.L. Secretary?]
Date:
[19 October 1843]
Source of text:
RS MC.3.306
Summary:

Relinquishes R.S.L. Donation Fund for spectrometer [see JH's 1842-6-1], because [A. C.] Becquerel's research makes it obsolete.

Contributor:
John Herschel Project

Herschel1075

From:
Sir John Herschel
To:
N. Spahr
Date:
[20 October 1843]
Source of text:
RS:HS 25.6.19 (draft RAS:JH 3/6.7)
Summary:

Both JH and his wife, Margaret, are very concerned about the health of Madame Gerlach, the aunt of NS. Details are provided.

Contributor:
John Herschel Project

Herschel340

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[23 October 1843]
Source of text:
RGO 6.8.72
Summary:

Would support improvements, both in number and quality, of lunar observations at the Royal Observatory; current practices produce unacceptably large predictive errors.

Contributor:
John Herschel Project
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