To John van der Weyde 29 September 1876
Down, | Beckenham, Kent. | Railway Station | Orpington. S.E.R.
Sep 29 1876
Dear Sir
I am much obliged for the photographs which you were so kind as to send me. I have sent them to Prof. Flower (one of the most capable judges in England) of the R. Coll. of Surgeons, where my specimens from the R. Plata were deposited. He admires the fine specimen of Toxodon & says that all the others apparently belong to Mylodon.1 I am extremely glad that you & your friends intend collecting the fossil Mammals. I will make two or three suggestions tho’ perhaps superfluous.
Judging from a distance, the Barrancas de Gregorio seemed to me worth investigating; & it wd be adviseable to ascertain where these cliffs are contemporaneous with the Pampean formation.2 Secondly, as far as I know the bones of the smaller mammals have not been collected, & these might be as valuable as those of the gigantic mammals: at M. Hermosa near Bahia Blanca I found the remains of small species.3 Thirdly, it wd be of paramount importance to find mammalian remains in the tertiary strata, such as those at Sta Fè Bajada beneath & older than the Pampean Formation.4 Near the mouth of the Uruguay I found such strata with great extinct oysters, & beneath these a formation in character quite like the Pampean, & which therefore it is probable wd contain Mammalian remains.5
Heartily wishing you success, | I remain, dear Sir | yours faithfully | Charles Darwin
Footnotes
Bibliography
Geological observations 2d ed.: Geological observations on the volcanic islands and parts of South America visited during the voyage of H.M.S. ‘Beagle’. By Charles Darwin. London: Smith, Elder & Co. 1876.
Summary
Thanks JVdW for photographs of fossils; [W. H.] Flower has identified them as Toxodon and Mylodon.
Sends suggestions for collecting fossil mammals in Argentina and Uruguay.
Letter details
- Letter no.
- DCP-LETT-10626
- From
- Charles Robert Darwin
- To
- John J. (John) Van der Weyde
- Sent from
- Down
- Source of text
- The New York Public Library. Astor, Lenox, and Tilden Foundations. Manuscripts and Archives Division. (Charles Robert Darwin miscellaneous file)
- Physical description
- LS(A) 4pp
Please cite as
Darwin Correspondence Project, “Letter no. 10626,” accessed on 23 April 2024, https://www.darwinproject.ac.uk/letter/?docId=letters/DCP-LETT-10626.xml
Also published in The Correspondence of Charles Darwin, vol. 24