To George Biddell Airy   1839-12-16 to 1840-1

The transcript of this letter is not available online on Ɛpsilon.

Please cite as “Herschel60,” in Ɛpsilon: The Sir John Herschel Collection accessed on 3 May 2024, https://epsilon.ac.uk/view/herschel/letters/Herschel60