From:
Sir Charles Lyell
To:
Sir John Herschel
Date:
[21 February 1865]
Source of text:
RS:HS 11.436
Summary:
Impressed by JH's [1824] drawings of earth-pillars in Botzen. Plans to visit them this year. Causes of earth-pillars. Speculates on climate changes on planet Mars.
Contributor:
John Herschel Project