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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
Text Online
From:
John Tyndall
To:
John Tyndall, Snr
Date:
Oct. 23rd, 1843.
Source of text:
MS JT/1/TYP/10/3299-3300, RI
Summary:

No summary available.

Contributor:
Tyndall Project