From:
Sir John Herschel
To:
[Sir] Edward Ryan
Date:
9] October [1834
Source of text:
TxU:H/L-0765.2; Reel 1089
Summary:
Extract from JH's journal on voyage to Cape of Good Hope, showing barometer and thermometer readings from 23 Nov. 1833 (Lat. 33˚20' N) to 5 Jan. 1834 (Lat 31˚30' S). Compares these to ER's thermometer and R.S.L. standard thermometer. Will accompany ER to [Cape] observatory next week. Please conduct barometer and temperature observations on ER's return trip [to India].
Contributor:
John Herschel Project