From:
Sir John Herschel
To:
Caroline Lucretia Herschel
Date:
[17 September 1826]
Source of text:
TxU:H/L-0571.2; Reel 1058
Summary:
Studying the volcanoes of Auvergne; hopes to use his newly-created actinometer at the Puy de Dôme.
Contributor:
John Herschel Project