From:
Joseph Johann Littrow
To:
Sir John Herschel
Date:
[13 March 1822]
Source of text:
RS:HS 11.234
Summary:
Has he received the copies of the Vienna Observations? Encloses a small pamphlet of interest to mariners. What does he think of Josef Fraunhofer's micrometer for observing double stars? Is writing this letter on his birthday.
Contributor:
John Herschel Project