The transcript of this letter is not available online on Ɛpsilon.
Please cite as “Herschel4806,” in Ɛpsilon: The Sir John Herschel Collection accessed on 9 May 2024, https://epsilon.ac.uk/view/herschel/letters/Herschel4806
Regarding modifications for the actinometer. Has written to Georg Merz regarding the object-glass. Regarding the eight-inch object-glass. Name of the maker of his actinometer. [JH has written a rough draft of his reply to this letter on the same sheet.]
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]