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To Fritz Müller   18 July [1869]

Summary

Reports reviews of Facts and arguments for Darwin [1869].

Is preparing for a French translation of Orchids.

The case of Abutilon which is sterile with some individuals is remarkable.

Has sent FM’s account of the monstrous Begonia to the Linnean Society.

Author:  Charles Robert Darwin
Addressee:  Johann Friedrich Theodor (Fritz) Müller
Date:  18 July [1869]
Classmark:  The British Library (Loan MS 10 no 29)
Letter no:  DCP-LETT-6835

To Fritz Müller   8 September [1869]

Summary

Wants observations on a Papilio to see whether ticking noise is confined to one sex.

Experiments on self-sterility.

Will send copy of his orchid paper ["Fertilisation of orchids", Collected papers 2: 138–56].

Eschscholzia when self-fertilised, produced pods.

Author:  Charles Robert Darwin
Addressee:  Johann Friedrich Theodor (Fritz) Müller
Date:  8 Sept [1869]
Classmark:  The British Library (Loan MS 10 no 30)
Letter no:  DCP-LETT-6881

To Fritz Müller   1 December [1869]

Summary

Role of humming-birds in plant fertilisation.

Alexander Agassiz has visited Down.

Sales of Facts and arguments for Darwin.

Encloses copy of T. H. Farrer letter [7015] and observations on the self-sterility of Eschscholzia.

Author:  Charles Robert Darwin
Addressee:  Johann Friedrich Theodor (Fritz) Müller
Date:  1 Dec [1869]
Classmark:  The British Library (Loan MS 10 no 31)
Letter no:  DCP-LETT-7018

To Fritz Müller   12 May 1870

Summary

Crossing experiments and self-sterility [in Eschscholzia].

Pangenesis.

Hermann Müller on insect adaptations for fertilisation of flowers.

CD working on book on man and sexual selection.

Author:  Charles Robert Darwin
Addressee:  Johann Friedrich Theodor (Fritz) Müller
Date:  12 May 1870
Classmark:  The British Library (Loan MS 10 no 32)
Letter no:  DCP-LETT-7184

To Fritz Müller   28 August 1870

Summary

Mimicry in Lepidoptera.

Sexual selection.

The Franco-Prussian war.

Author:  Charles Robert Darwin
Addressee:  Johann Friedrich Theodor (Fritz) Müller
Date:  28 Aug 1870
Classmark:  The British Library (Loan MS 10 no 33)
Letter no:  DCP-LETT-7310

To Fritz Müller   2 August [1871]

Summary

Opinions on Descent.

Sexual selection and mimicry in Lepidoptera; sexual selection as an aid to protective imitation.

Author:  Charles Robert Darwin
Addressee:  Johann Friedrich Theodor (Fritz) Müller
Date:  2 Aug [1871]
Classmark:  The British Library (Loan MS 10 no 34)
Letter no:  DCP-LETT-7892

To Fritz Müller   25 September 1873

Summary

Seedling vigour resulting from crossing of parents.

CD to publish work on insectivorous plants.

Author:  Charles Robert Darwin
Addressee:  Johann Friedrich Theodor (Fritz) Müller
Date:  25 Sept 1873
Classmark:  The British Library (Loan MS 10 no 35)
Letter no:  DCP-LETT-9067

To Fritz Müller   1 January 1874

Summary

Thanks for two pamphlets.

Sends Thomas Belt’s [The naturalist in Nicaragua (1874)], "the best Nat. Hist. book of travels ever published".

Author:  Charles Robert Darwin
Addressee:  Johann Friedrich Theodor (Fritz) Müller
Date:  1 Jan 1874
Classmark:  The British Library (Loan MS 10 no 36)
Letter no:  DCP-LETT-9223

To Fritz Müller   13 February 1874

Summary

Has sent FM’s letter on termites to Nature ["Habits of various insects", Nature 10 (1874): 102–3].

Would be interested in observations on the stingless bees of Brazil.

Author:  Charles Robert Darwin
Addressee:  Johann Friedrich Theodor (Fritz) Müller
Date:  13 Feb 1874
Classmark:  The British Library (Loan MS 10 no 37)
Letter no:  DCP-LETT-9288

To Fritz Müller   7 February [1867]

Summary

CD’s Variation is in printer’s hands.

Orchid self-sterility.

Author:  Charles Robert Darwin
Addressee:  Johann Friedrich Theodor (Fritz) Müller
Date:  7 Feb [1867]
Classmark:  The British Library (Loan MS 10 no 12)
Letter no:  DCP-LETT-5393

To Fritz Müller   22 February [1867]

Summary

Observations on orchid self-sterility.

Wants information on characters that may have originated through sexual selection in lower animals.

Encloses queries on expression.

Author:  Charles Robert Darwin
Addressee:  Johann Friedrich Theodor (Fritz) Müller
Date:  22 Feb [1867]
Classmark:  The British Library (Loan MS 10 no 13)
Letter no:  DCP-LETT-5410

To Fritz Müller   25 March [1867]

Summary

Thanks for facts on orchids.

Friedrich Hildebrand’s new book on fertilisation of plants [Die Geschlechten-Vertheilung bei den Pflanzen (1867)].

CD correcting proofs of Variation.

FM likes Ernst Haeckel’s book [Generelle Morphologie (1866)].

Author:  Charles Robert Darwin
Addressee:  Johann Friedrich Theodor (Fritz) Müller
Date:  25 Mar [1867]
Classmark:  The British Library (Loan MS 10 no 14)
Letter no:  DCP-LETT-5458

To Fritz Müller   22 April [1867]

Summary

Self-sterility in orchids.

Growth differences in plants raised from self- and cross-fertilised seed.

Author:  Charles Robert Darwin
Addressee:  Johann Friedrich Theodor (Fritz) Müller
Date:  22 Apr [1867]
Classmark:  The British Library (Loan MS 10 no 15)
Letter no:  DCP-LETT-5509

To Fritz Müller   26 May [1867]

Summary

Thanks for information on sexual differences.

Orchids; self-sterility and difficulty of getting seeds to germinate.

Dimorphism.

Author:  Charles Robert Darwin
Addressee:  Johann Friedrich Theodor (Fritz) Müller
Date:  26 May [1867]
Classmark:  The British Library (Loan MS 10 no 16)
Letter no:  DCP-LETT-5551

To Fritz Müller   31 July [1867]

Summary

Has abstracted for insertion in his sterility chapter [Variation 2, ch. 18], FM’s observations of plant’s pollen being poisonous to itself.

Occurrence of mimetic plants.

Colouring of Planariae.

Author:  Charles Robert Darwin
Addressee:  Johann Friedrich Theodor (Fritz) Müller
Date:  31 July [1867]
Classmark:  The British Library (Loan MS 10 no 17)
Letter no:  DCP-LETT-5591

To Fritz Müller   15 August [1867]

Summary

Queries about expressions in crying monkeys.

Has received letter from Hermann Müller on orchid fertilisation.

Author:  Charles Robert Darwin
Addressee:  Johann Friedrich Theodor (Fritz) Müller
Date:  15 Aug [1867]
Classmark:  The British Library (Loan MS 10 no 18)
Letter no:  DCP-LETT-5605

To Fritz Müller   2 November 1867

Summary

Variation to be published at end of month.

Dimorphism and self-sterility.

Seed dissemination in Adenanthera.

Author:  Charles Robert Darwin
Addressee:  Johann Friedrich Theodor (Fritz) Müller
Date:  2 Nov 1867
Classmark:  The British Library (Loan MS 10 no 19)
Letter no:  DCP-LETT-5666

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
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letter (111)
Author
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Correspondent
Darwin, C. R.[X]
Müller, Fritz[X]
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1865 (9)
1866 (13)
1867 (15)
1868 (12)
1869 (10)
1870 (4)
1871 (2)
1872 (1)
1873 (1)
1874 (4)
1875 (2)
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1879 (2)
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