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From:
Niccolo Cacciatore
To:
Sir John Herschel
Date:
[10 March 1825]
Source of text:
RS:HS 5.136
Summary:

Thanks for information on the R.S.L. barometers. Would he purchase various instruments for the new observatory. Notes on star readings.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
James South
Date:
[10 March 1825]
Source of text:
RS:HS 16.434 (C: 20.201)
Summary:

Making, reducing, and publishing double star work is very difficult and, because of Wilhelm Struve's recent endeavors, less pressing than it had been. Mentions various doubles. Expresses interest in JS's plan to purchase a very large refractor.

Contributor:
John Herschel Project