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Darwin Correspondence Project

To Carl Wilhelm von Nägeli   [after 8 April 1867]1

Thanks for your long & valuable letter of March 31 on morphological laws &c.2

Your lecture on Hieracium, very valuable & instructive.—3 I have received 2 or 3 days ago Photograph, which I am very glad to possess & your several memoirs though I have not yet had time to read.—4 Delay in answering your letter About specimens5

“Copy of Origin”.6

Munich. C. Nägeli.


The date is established by the fact that this letter was drafted on the back of the letter from Daniel Oliver, 8 April 1867.
Nägeli’s letter of 31 March 1867 has not been found, but see the letter to J. D. Hooker, 5 April [1867].
The lecture has not been identified or found in the Darwin Pamphlet Collection–CUL, but see the letter to J. D. Hooker, 5 April [1867], n. 1.
The photograph has not been found in the Darwin Archive–CUL. Nägeli published ten papers in the Sitzungsberichte der königl. bayer. Akademie der Wissenschaften zu München (1866), including three on Hieracium and four on hybridisation. They have not been found in the Darwin Pamphlet Collection–CUL.
Nägeli wished to exchange a set of German and Alpine forms of Hieracium for a set of British forms; CD had written to Joseph Dalton Hooker for the name of someone wishing to make the exchange (letter to J. D. Hooker, 5 April [1867]), and in Hooker’s absence CD’s letter was answered by Daniel Oliver (letter from Daniel Oliver, 8 April 1867).
CD may have offered to send a copy of the fourth edition of Origin, which was published in 1866.


Thanks for his long letter on morphological laws.

Letter details

Letter no.
Charles Robert Darwin
Carl Wilhelm von Nägeli
Sent from
Source of text
DAR 173: 33v
Physical description
Adraft 1p (on 5494)

Please cite as

Darwin Correspondence Project, “Letter no. 5496,” accessed on 25 April 2019,

Also published in The Correspondence of Charles Darwin, vol. 15