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To Fritz Müller   30 January [1868]

Summary

Sends Variation and would like to hear what FM thinks of Pangenesis.

Thanks for information on expression.

Dimorphic plants;

differences in seed production in cross- and self-fertilised plants.

Author:  Charles Robert Darwin
Addressee:  Johann Friedrich Theodor (Fritz) Müller
Date:  30 Jan [1868]
Classmark:  The British Library (Loan MS 10 no 20)
Letter no:  DCP-LETT-5816

To Fritz Müller   11 February 1868

Summary

Is working on sexual selection and is interested in any anomalous sex ratios in lower animals and any sex-related characters.

Author:  Charles Robert Darwin
Addressee:  Johann Friedrich Theodor (Fritz) Müller
Date:  11 Feb 1868
Classmark:  The British Library (Loan MS 10 no 21)
Letter no:  DCP-LETT-5860

To Fritz Müller   16 March [1868]

Summary

CD arranging for a translation of FM’s Für Darwin by W. S. Dallas.

Author:  Charles Robert Darwin
Addressee:  Johann Friedrich Theodor (Fritz) Müller
Date:  16 Mar [1868]
Classmark:  The British Library (Loan MS 10 no 22)
Letter no:  DCP-LETT-6014

To Fritz Müller   3 April [1868]

Summary

Movement in plants.

Dimorphism.

Would welcome FM’s opinion of Pangenesis.

Author:  Charles Robert Darwin
Addressee:  Johann Friedrich Theodor (Fritz) Müller
Date:  3 Apr [1868]
Classmark:  The British Library (Loan MS 10 no 23)
Letter no:  DCP-LETT-6085

To Fritz Müller   3 June 1868

Summary

Is glad FM approves of a translation of Für Darwin.

Hopes FM will think well of Pangenesis.

Sexual differences in insect auditory and stridulating organs.

Read FM’s paper on Balanus with great interest ["On Balanus armatus", Ann. & Mag. Nat. Hist. 4th ser. 1 (1868): 393–412].

Author:  Charles Robert Darwin
Addressee:  Johann Friedrich Theodor (Fritz) Müller
Date:  3 June 1868
Classmark:  The British Library (Loan MS 10 no 24)
Letter no:  DCP-LETT-6224

To Fritz Müller   17 August 1868

Summary

FM’s additions for English edition [1869] of Für Darwin.

Dimorphic plants.

Author:  Charles Robert Darwin
Addressee:  Johann Friedrich Theodor (Fritz) Müller
Date:  17 Aug 1868
Classmark:  The British Library (Loan MS 10 no 25)
Letter no:  DCP-LETT-6320

To Fritz Müller   28 November 1868

Summary

Delay in translating Für Darwin.

Comments on plan to repeat CD’s experiments on illegitimate offspring.

FM’s observations on stridulation.

Author:  Charles Robert Darwin
Addressee:  Johann Friedrich Theodor (Fritz) Müller
Date:  28 Nov 1868
Classmark:  The British Library (Loan MS 10 no 26)
Letter no:  DCP-LETT-6483

From Fritz Müller   3 April 1868

Summary

Thanks CD for sending him copy of Variation.

Describes results of his brother’s [August Müller] experiments on effect of climate on maize.

Like ancestors of horses, young tapir is also striped.

Author:  Johann Friedrich Theodor (Fritz) Müller
Addressee:  Charles Robert Darwin
Date:  3 Apr 1868
Classmark:  Möller 1915–21, 2: 137–8
Letter no:  DCP-LETT-6089A

From Fritz Müller   22 April 1868

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Summary

His opinion of Pangenesis.

On relative proportion of sexes in marine animals [sthg missing!?] Crustacea.

Sexual differences.

Music of Cicadae.

Author:  Johann Friedrich Theodor (Fritz) Müller
Addressee:  Charles Robert Darwin
Date:  22 Apr 1868
Classmark:  DAR 86: A85–6; Möller 1915–21, 2: 140; Darwin Library–CUL (tipped into CD’s copy of F. Müller 1864a)
Letter no:  DCP-LETT-6140

From Fritz Müller   17 June 1868

Summary

Again thanks CD for trouble in arranging for translation of Für Darwin.

Sends addition answering critics of his idea of insect metamorphosis [see Möller ed. 1915–21, 1: 259].

Agrees with Charles Lyell’s suggested English title "Facts and arguments in favor of Darwin", although perhaps more accurate to call it "Darwinism tested by Carcinology" or "Carcinology as bearing on the origin of species".

Says any profit should go to CD for his trouble and expense with the translation.

Thanks for seeds of Eschscholtzia.

Gives observations on number of climbing plants, including Dilleniacea, Marantacea, Catasetum.

Author:  Johann Friedrich Theodor (Fritz) Müller
Addressee:  Charles Robert Darwin
Date:  17 June 1868
Classmark:  Möller 1915–21, 2: 141–3; W. S. Dallas trans. 1869, pp. 119–21 n.
Letter no:  DCP-LETT-6248A

From Fritz Müller   9 September 1868

Summary

Will repeat CD’s experiments on dimorphic and trimorphic plants.

Auditory organs of Orthoptera; stridulation in lamellicorn beetles.

Author:  Johann Friedrich Theodor (Fritz) Müller
Addressee:  Charles Robert Darwin
Date:  9 Sept 1868
Classmark:  DAR 82: A92, Möller ed. 1915–21, 2: 146–7.
Letter no:  DCP-LETT-6359

From Fritz Müller   31 October 1868

Summary

Writes on various observations and discoveries on dimorphic and trimorphic plants.

Author:  Johann Friedrich Theodor (Fritz) Müller
Addressee:  Charles Robert Darwin
Date:  31 Oct 1868
Classmark:  DAR 142: 98, 103
Letter no:  DCP-LETT-6439
Document type
letter (12)
Addressee
Correspondent
Darwin, C. R.[X]
Müller, Fritz[X]
Date
1868
01 (1)
02 (1)
03 (1)
04 (3)
06 (2)
08 (1)
09 (1)
10 (1)
11 (1)
letter