From:
Sir John Herschel
To:
George Biddell Airy
Date:
[10 April 1842]
Source of text:
RGO 6.463.300
Summary:
Sends GA a spectrum photograph, and explains how JH obtained it.
Contributor:
John Herschel Project
Sends GA a spectrum photograph, and explains how JH obtained it.
No summary available.