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From William Preyer   6 July 1877

Summary

Asks for CD’s "Sketch of an infant" [Collected papers 2: 191–200]. He has made observations on new-born children and mammals to determine what behaviour is inherited and what acquired.

Author:  William Thierry (William) Preyer
Addressee:  Charles Robert Darwin
Date:  6 July 1877
Classmark:  DAR 174: 70
Letter no:  DCP-LETT-11038

To William Preyer   8 July 1877

Summary

Discusses inheritance.

Has WP heard of Douglas Spalding’s experiments of blindfolding chickens ["Instinct – with original observations on young animals", Rep. BAAS 42 (1872): 141–3]?

Author:  Charles Robert Darwin
Addressee:  William Thierry (William) Preyer
Date:  8 July 1877
Classmark:  DAR 147: 268–9
Letter no:  DCP-LETT-11042

To William Preyer   25 January 1878

Summary

Thanks WP for election [as honorary member of the Medicinisch-Naturwissenschaftliche Gessellschaft zu Jena].

Author:  Charles Robert Darwin
Addressee:  William Thierry (William) Preyer
Date:  25 Jan 1878
Classmark:  DAR 147: 269
Letter no:  DCP-LETT-11331

From William Preyer   25 November 1880

Summary

Sends his book [Naturwissenschaftliche Thatsachen und Probleme. Populäre Vorträge (1880)].

Anxious to receive Movement in plants because CD’s methods may be applicable to his experiments on the earliest movements of animal embryos.

Author:  William Thierry (William) Preyer
Addressee:  Charles Robert Darwin
Date:  25 Nov 1880
Classmark:  DAR 174: 71
Letter no:  DCP-LETT-12857

To William Preyer   27 November 1880

Summary

Will send copy of Movement in plants.

Encloses copies of articles [unspecified].

Author:  Charles Robert Darwin
Addressee:  William Thierry (William) Preyer
Date:  27 Nov 1880
Classmark:  DAR 147: 270
Letter no:  DCP-LETT-12867

From William Preyer   2 December 1880

Summary

CD’s comment that certain instincts originate as variations of the brain, rather than as habits, is supported by Brown-Séquard’s and C. F. O. Westphal’s work on epileptiform movements.

Author:  William Thierry (William) Preyer
Addressee:  Charles Robert Darwin
Date:  2 Dec 1880
Classmark:  DAR 174: 72
Letter no:  DCP-LETT-12883

To William Preyer   28 October 1881

Summary

Thanks WP for copy of his Die Seele des Kindes [1882].

Author:  Charles Robert Darwin
Addressee:  William Thierry (William) Preyer
Date:  28 Oct 1881
Classmark:  DAR 147: 271
Letter no:  DCP-LETT-13438

To William Thierry Preyer   31 March 1868

Summary

Glad to hear that WP defends species transmutation. German support is the chief reason to hope that their views will prevail.

Author:  Charles Robert Darwin
Addressee:  William Thierry (William) Preyer
Date:  31 Mar 1868
Classmark:  LL 3: 88
Letter no:  DCP-LETT-6075

To William Thierry Preyer   [before 21 March 1869]

Summary

Replies to inquiries about his life and career.

Author:  Charles Robert Darwin
Addressee:  William Thierry (William) Preyer
Date:  [before 21 Mar 1869]
Classmark:  DAR 147: 262–5
Letter no:  DCP-LETT-6540

From W. T. Preyer   21 March 1869

Summary

Has given a lecture series on Darwinism which was attended by 200–500 students.

Would like to compile a list of CD’s works.

Author:  William Thierry (William) Preyer
Addressee:  Charles Robert Darwin
Date:  21 Mar 1869
Classmark:  DAR 174: 67
Letter no:  DCP-LETT-6676

To W. T. Preyer   29 March 1869

Summary

Congratulates WP on the success of his lectures.

Discusses the phrase "struggle for existence".

Sends a list of his papers.

Author:  Charles Robert Darwin
Addressee:  William Thierry (William) Preyer
Date:  29 Mar 1869
Classmark:  DAR 147: 254–6
Letter no:  DCP-LETT-6687

From William Thierry Preyer   [before 17 February 1870]

Summary

Notes the differences in haemoglobin between species; this proves, to WP, that natural selection does not act only on morphological development.

Remarks on the differences and similarities in the effects of prussic acid on different groups of animals.

Questions CD on his early education and influences.

Author:  William Thierry (William) Preyer
Addressee:  Charles Robert Darwin
Date:  [before 17 Feb 1870]
Classmark:  DAR 261.11: 21 (EH 88206073)
Letter no:  DCP-LETT-7110

To W. T. Preyer   17 February [1870]

Summary

Comments on effects of prussic acid on different individuals of the same species and other physiological research by WP.

Provides information about his studies in Edinburgh and Cambridge and qualifications he had for Beagle voyage. Describes influence of R. E. Grant and J. S. Henslow.

Author:  Charles Robert Darwin
Addressee:  William Thierry (William) Preyer
Date:  17 Feb [1870]
Classmark:  Ralph Colp Jr (private collection)
Letter no:  DCP-LETT-7112

From W. T. Preyer   9 May 1870

Summary

Sends his "Charles Darwin, eine biographische Skizze" [Das Ausland 2 Apr 1870].

Author:  William Thierry (William) Preyer
Addressee:  Charles Robert Darwin
Date:  9 May 1870
Classmark:  DAR 174: 68
Letter no:  DCP-LETT-7181

To W. T. Preyer   15 May 1870

Summary

Comments on WP’s biographical article on CD. Asks him to thank O. F. Peschel for his present of the publication [Das Ausland 2 Apr 1870].

Author:  Charles Robert Darwin
Addressee:  William Thierry (William) Preyer
Date:  15 May 1870
Classmark:  DAR 147: 256–8
Letter no:  DCP-LETT-7190

From William Preyer   27 April 1871

Summary

Thanks CD for Origin, 5th ed.

Comments on reviews of Descent by the Duke of Argyll and A. R. Wallace.

Lists the Darwinian professors at Jena.

WP’s work shows external ear to have no physiological functions.

W. Müller’s book not yet arrived. Will send Müller’s next works.

Author:  William Thierry (William) Preyer
Addressee:  Charles Robert Darwin
Date:  27 Apr 1871
Classmark:  DAR 87: 52, DAR 174: 69
Letter no:  DCP-LETT-7721

To William Preyer   30 April 1871

Summary

Is sending copy of Descent.

Thanks for copy of WP’s book [Die Blutkrystalle (1871)].

Discusses shape of external ear.

Author:  Charles Robert Darwin
Addressee:  William Thierry (William) Preyer
Date:  30 Apr 1871
Classmark:  DAR 147: 265–7
Letter no:  DCP-LETT-7729

From William Preyer   8 May 1871

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Summary

Delighted that CD does not hesitate to follow his theory to its last consequences. "This is far more difficult in England than in Germany."

Wilhelm Müller in his new book [Beiträge zur pathologischen Anatomie und Physiologie des menschlichen Rückenmarks (1871)], adduces many facts in favour of CD’s theory.

Various observations on the human ear. [See Descent, 2d ed., p. 14 n.]

Author:  William Thierry (William) Preyer
Addressee:  Charles Robert Darwin
Date:  8 May 1871
Classmark:  DAR 87: 49–51
Letter no:  DCP-LETT-7745

To William Preyer   13 May 1871

Summary

Obliged for letter about human ear. Comments on ears and on E. R. Lankester’s idea about the ear-lobe.

Author:  Charles Robert Darwin
Addressee:  William Thierry (William) Preyer
Date:  13 May 1871
Classmark:  DAR 147: 267–8
Letter no:  DCP-LETT-7756
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letter (19)
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1868 (1)
1869 (3)
1870 (4)
1871 (4)
1877 (2)
1878 (1)
1880 (3)
1881 (1)
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