To [W. K. von Haidinger]   [9 April 1870]

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

Please cite as “Herschel8563,” in Ɛpsilon: The Sir John Herschel Collection accessed on 28 April 2024, https://epsilon.ac.uk/view/herschel/letters/Herschel8563