From:
Sir John Herschel
To:
George Biddell Airy
Date:
[25 August 1842]
Source of text:
RGO 6.675.329
Summary:
A note to accompany some letters being returned to GA.
Contributor:
John Herschel Project
Showing 1–3 of 3 items
A note to accompany some letters being returned to GA.
Asks GA's opinion as to whether Ordinance observatories should make their magnetic observations on a 3-minute or 5-minute system.
Is organizing a committee to revise the instructions for observers at magnetic observatories; GA is on it.