From:
Manuel John Johnson
To:
Sir John Herschel
Date:
[23 July 1848]
Source of text:
RS:HS 10.335
Summary:
Encloses a letter from W. J. Burchell, the African traveller, showing the variability of Argus. Has added a 10 foot telescope to the instruments at the Observatory.
Contributor:
John Herschel Project