From J. L. H. Down 20 December 1873
39, Welbeck Street, | Cavendish Square. W.
20. 12. 73
Dear Sir,
So far as I can judge from the external configuration and general feel of the ear I wrote to you about, it does not in my opinion lend support to L. Meyer’s views.1 The ear is not by any means a depraved one. Contrary to what one usually finds in the ears of Idiots there is a free lobule and the Helix and other parts are fairly developed.
It appears to me a real projection of the cartilage. I omitted to mention that the boy was extremely prognathous & had moreover an unusually large appendix vermiformis to his cæcum. The opening to it was sufficiently large to admit fæcal matter, with which it was partially filled. I shall have much pleasure in lending you the specimen for the purpose you name. I shall try to have a photograph taken before it is dissected.2
I am at home every morning until one. The psychological condition of the boy was interesting. The cause of the arrest was emotional disturbance of the mother during gestation.
I have been for a long time working at an antithetical subject to that which has engaged your attention; to involution rather than evolution and with results confirmatory of your teaching—
In 1866 I published some observations I had made with reference to the change of race type associated with degeneration.3 My paper did not excite much interest at the time, but on the late visit of the British Medical Association to my establishment for training Idiots at Normansfield, Hampton Wick the interest in the question was revived.
I shewed the Members several specimens of typical Mongols the progeny of Caucasian parents. I have had negroids & Malays from like parentage— Of course the argument is that if these changes of race type can be produced by degeneration there is an end to the so called species and the races are true varieties.
Probably, however, all this has occurred to you before and I am only taking up your time with a thrice told tale. The subject has great interest to me, as it assists one in prognosis and to some extent in treatment.
I am, dear Sir, | Yours faithfully | J. Langdon Down
CD annotations
Footnotes
Bibliography
Descent 2d ed.: The descent of man, and selection in relation to sex. By Charles Darwin. 2d edition. London: John Murray. 1874.
Descent: The descent of man, and selection in relation to sex. By Charles Darwin. 2 vols. London: John Murray. 1871.
Down, John Langdon Haydon. 1866. Observations on an ethnic classification of idiots. London Hospital Reports 3: 259–62.
Meyer, Ludwig. 1871. Ueber das Darwin’sche Spitzohr. Archiv für pathologische Anatomie und Physiologie und für klinische Medicin 53: 485–92.
Summary
Describes an ear from a microcephalous idiot, which does not lend support to Ludwig Mayer’s view [that points on ears are mere variations; see Descent, 2d ed., pp. 15–16].
Is working on involution rather than evolution, with results confirming CD’s teaching.
Letter details
- Letter no.
- DCP-LETT-9188
- From
- John Langdon Haydon Down
- To
- Charles Robert Darwin
- Sent from
- London, Welbeck St, 39
- Source of text
- DAR 87: 61–2
- Physical description
- ALS 4pp †
Please cite as
Darwin Correspondence Project, “Letter no. 9188,” accessed on 6 May 2024, https://www.darwinproject.ac.uk/letter/?docId=letters/DCP-LETT-9188.xml
Also published in The Correspondence of Charles Darwin, vol. 21