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From:
Thomas Archer Hirst
To:
John Tyndall
Date:
July 9th, 1850
Source of text:
MS JT/1/H/148, RI
Summary:

No summary available.

Contributor:
Tyndall Project
From:
William Henry Smyth
To:
Sir John Herschel
Date:
[9 July 1850]
Source of text:
RS:HS 16.299
Summary:

Sends JH copy of his address to Royal Geographical Society. Inquires about a means to make astronomical instruments steadier with poles devised by JH.

Contributor:
John Herschel Project