The transcript of this letter is not available online on Ɛpsilon.
Please cite as “Herschel2788,” in Ɛpsilon: The Sir John Herschel Collection accessed on 28 April 2024, https://epsilon.ac.uk/view/herschel/letters/Herschel2788
Compliments Georg Erman's map of the declination lines made from observations, which confirms C. F. Gauss's map derived by theory. Asks JH whether the map should be printed and attached to the R.S.L. report. Plans to see JH at Slough. Thinks the idea of there being two auroras, one in the west and one in the east, is interesting.
Record created for the Calendar of the Correspondence of Sir John Herschel (CUP: Cambridge), 1998 by Michael J. Crowe ed., David R. Dyck and James J. Kevin assoc. eds
Digital record created by Dr Marvin Bolt and Steven Lucy at the Webster Institute of the Adler Planetarium
Converted to TEI by Michael Hawkins, Epsilon Project, Cambridge University Library
John Herschel Project[View Ɛpsilon collection]