From:
Augustus De Morgan
To:
Sir John Herschel
Date:
[11 November 1857]
Source of text:
RS:HS 6.304
Summary:
Has the proofs. Gives some queries concerning them.
Contributor:
John Herschel Project
Has the proofs. Gives some queries concerning them.
No summary available.
No summary available.
Sends £100 check for JS.
Thanks for his suggestions respecting the mode of observation by collimator; will give it careful consideration. Sends two photographs of the method of mounting his observation tower.