From:
Thomas Maclear
To:
Sir John Herschel
Date:
29] October [1835
Source of text:
RS:HS 12.220
Summary:
Can JH spare a few minutes on Friday to be present when the errors of the transit instrument are being determined. Outlines the investigations necessary. The comet is a splendid fellow. Is busy measuring the diameter of the ring micrometer.
Contributor:
John Herschel Project