From:
Sir John Herschel
To:
William Henry Sykes
Date:
1848[-1-17 or later]
Source of text:
RS:HS 17.144b
Summary:
JH writes to the best of his knowledge about William Mann's competence in various areas.
Contributor:
John Herschel Project
Showing 1–2 of 2 items
JH writes to the best of his knowledge about William Mann's competence in various areas.
Notes that actinometer observations prove faulty due to problem with instruments. Asks that WS notify Indian observatories to join others in terminating such observations until JH finds method of getting around problem.