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Darwin Correspondence Project

To Richard Owen   28 [December 1837]1

Dear Owen

As my servant is passing your way, I send a perfect revise of Toxodon. I have read it over, & marked the very few errata which caught my eye, which may help you in your final revision.—

I hope with all my heart you will return quite comfortable, and you must not work so hard, as usual, for some time.—

Yours most truly | Chas. Darwin.

Thursday 28th

36 Grt. Marlbro’ St.—

NB. I altered the 12,000. toises into 12,00 toises2 which I suspect is right, though it did not occur to me, when I first read it over.— Perhaps you had better just refer to Cuvier—3


The only Thursday 28th in 1837 on which CD was in London was in December. The Toxodon description was published in February 1838.
A French linear measure of 6.925 lineal feet. The reference occurs in Owen’s general introduction to Fossil Mammalia, p. 13. It is printed as 1200 toises, the height at which Humboldt found the bones of a species of Mastodon described by Cuvier.


Cuvier, Georges. 1812. Recherches sur les ossemens fossiles de quadrupèdes, où l’on rétablit les caractères de plusieurs espèces d’animaux que les révolutions du globe paroissent avoir détruites. 4 vols. Paris: Deterville.


Sends perfect revise of "Toxodon" [Fossil Mammalia] which he has read and marked.

Letter details

Letter no.
Charles Robert Darwin
Richard Owen
Sent from
London, Gt Marlborough St, 36
Source of text
Natural History Museum (General Special Collections Owen correspondence 9/209)
Physical description

Please cite as

Darwin Correspondence Project, “Letter no. 395,” accessed on 4 December 2020,

Also published in The Correspondence of Charles Darwin, vol. 2