From:
John Tyndall
To:
Sir John Herschel
Date:
[1 June 1869]
Source of text:
RS:HS 17.407b (C: RI 565)
Summary:
In response to JH's comments on JT's explanation of comets says faintness of head and nucleus does not indicate non-existence; eye may not see all. Experiments with polarized light produce 'gorgeous' 'residual blue.'
Contributor:
John Herschel Project