From:
Adolphe Quetelet
To:
Sir John Herschel
Date:
[3 June 1840]
Source of text:
RS:HS 14.219
Summary:
Still waits for the instrument that Edward Sabine had built. Wishes to make actinometer observations but has no instrument. Asks JH to have one made. Sends observations from Italy trip to Sabine to present to R.S.L. Continues horary observations.
Contributor:
John Herschel Project