From:
Sir John Herschel
To:
Frederick Howlett
Date:
[5 May 1867]
Source of text:
RS:HS 24.198
Summary:
Proposes to travel to visit FH next day to observe the sun with him.
Contributor:
John Herschel Project
Showing 1–4 of 4 items
Proposes to travel to visit FH next day to observe the sun with him.
Describes problem with spectral lines in telescope while trying to understand William Huggins's results.
Comments on impossibility of increasing the intrinsic illumination of a source with a telescope; how to obtain the spectrum of red flames of the sun.
Is assisting in communication between G. G. Stokes and GA, about stereoscopic observation of eclipses; JH is not mobile enough to attend the next Board of Visitors meeting.