From:
Eyre B. Powell
To:
Sir John Herschel
Date:
[9 May 1870]
Source of text:
RS:HS 14.185
Summary:
Thanks JH for mention of him in Outlines Astr. Sends detailed observations of Alpha Centauri system.
Contributor:
John Herschel Project
Showing 1–2 of 2 items
Thanks JH for mention of him in Outlines Astr. Sends detailed observations of Alpha Centauri system.
Describes difficulties in producing glass pen and attaching it to pendulum to produce precise curves for aligning equatorial [telescope mount]. Sent artistic sample to JH's wife.