From:
Sir John Herschel
To:
John Herschel (son)
Date:
[29 September 1867]
Source of text:
JHS 6.51
Summary:
Provides sources of information about polarization, spectroscopy and solar physics for son John, who is continuing his preparation for observing the solar eclipse [see JH's 1867-9-12].
Contributor:
John Herschel Project