From:
Edward Sabine
To:
Sir John Herschel
Date:
[21 June 1839]
Source of text:
RS:HS 15.42
Summary:
Dublin University is available on 2 July for instruction of the officers to be employed in the magnetic observatories. Suggests a note be sent to the R.S.L. stating that the changes in instrumentation are only slight modifications.
Contributor:
John Herschel Project