From:
Sir John Herschel
To:
John Henry Dallmeyer
Date:
[16 February 1867]
Source of text:
RS:HS 6.4 & 24.188
Summary:
Is he acquainted with his ordinary reading glass? Gives details. Always carries a small one around with him for reading small print; thinks there would be a good market for them.
Contributor:
John Herschel Project