Text Online
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
No summary available.
Sends JH copy of his address to Royal Geographical Society. Inquires about a means to make astronomical instruments steadier with poles devised by JH.