From:
George Biddell Airy
To:
Sir John Herschel
Date:
[31 May 1869]
Source of text:
RS:HS 1.316 (ACCS: RGO 6.257.359)
Summary:
Gives information on the rotational periods of Mars, Jupiter, and Saturn [see JH's 1869-5-30].
Contributor:
John Herschel Project