From:
Sir John Herschel
To:
Adolphe Quetelet
Date:
[9 October 1870]
Source of text:
Académie belgique: #57
Summary:
Apologizes for not writing often. Has been ill. 'Moderate' use of 'Coca de Peru' [cocaine] helps. Is working on a 'General Catalogue of double stars reduced to 1830.0.' Acknowledges works received.
Contributor:
John Herschel Project