From:
Titus Armellini
To:
Sir John Herschel
Date:
[13 August 1862]
Source of text:
RS:HS 1.405
Summary:
Giving information on his invention of the floating barometer.
Contributor:
John Herschel Project
Giving information on his invention of the floating barometer.
Further information on his invention of the floating barometer.
New invention for measuring barometrical variations on an increased scale.