From:
Sir John Herschel
To:
Isabella Herschel
Date:
[1859?]
Source of text:
JHS 5.18
Summary:
Tells about missing a meeting with HRH Prince Albert, about a paper read at a R.S.L. meeting, and describes how to figure out how strong a reading glass JH needs to buy for his wife, Margaret. JH saw Charles Wheatstone, who has devised an alphabetic telegraph.
Contributor:
John Herschel Project