From:
John Tyndall
To:
Sir John Herschel
Date:
[29 May 1869]
Source of text:
RS:HS 17.406b (C: RI 562)
Summary:
Thanks for JH's suggestions on JT's outline of comet speculations. [G. B.] Airy, too, has replied. Includes more speculations on 'envelopes' and nucleus of comet.
Contributor:
John Herschel Project