From:
Caroline Lucretia Herschel
To:
Sir John Herschel
Date:
[4 August 1842]
Source of text:
unknown
Summary:
Promises in her next letter to comment about JH's 'chrysotype' photographic process.
Contributor:
John Herschel Project
Promises in her next letter to comment about JH's 'chrysotype' photographic process.