Text Online
From:
Joseph Henry
To:
Michael Faraday
Date:
1 June 1864
Source of text:
APS Misc MS Collection
Summary:
No summary available.
Contributor:
Faraday Project
No summary available.
No summary available.
No summary available.
Pendulum experiments are already approved at principal stations in Russian trigonometrical survey. Recent communication from J. H. Pratt to R.S.L. about pendulum observations.
Agrees with him that J. Müller's drawings do not show the entities around the sunspot clearly. Has nearly completed the apparatus for holding one of JH's sun prisms to his reflector. Hopes to do something with it soon.