From:
William Henry Sykes
To:
Sir John Herschel
Date:
[18 January 1862]
Source of text:
RS:HS 17.158
Summary:
Asks for JH's opinion on balloon ascents, to be presented at next Balloon Committee meeting. Explains enclosed letters and diagrams regarding ascents; mentions that new thermometer suggested by JH is under construction.
Contributor:
John Herschel Project