From:
Basil Hall
To:
Sir John Herschel
Date:
[9 November 1840]
Source of text:
RS:HS 9.193
Summary:
Regarding the correct figure for the height of Etna, W. H. Smyth favors the half foot measurement. Regarding falls of stones from Vesuvius. Encloses calculations made by professor at Naval College. Remembers large balls of lava at Teneriffe.
Contributor:
John Herschel Project