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To Fritz Müller   21 June 1881

Summary

Wants seeds of heterostyled plants to test fertility of illegitimate seedlings.

Offers £100 to FM to replace books lost in flooding.

Author:  Charles Robert Darwin
Addressee:  Johann Friedrich Theodor (Fritz) Müller
Date:  21 June 1881
Classmark:  The British Library (Loan MS 10 no 52)
Letter no:  DCP-LETT-13212

To Fritz Müller   4 July 1881

Summary

Movement of plants to shake off water: FM’s invaluable observations.

Inquires about "bloom" on leaves.

Fertilisation of Melastomataceae, roles of the two sets of anthers.

Author:  Charles Robert Darwin
Addressee:  Johann Friedrich Theodor (Fritz) Müller
Date:  4 July 1881
Classmark:  The British Library (Loan MS 10 no 53)
Letter no:  DCP-LETT-13233

To Fritz Müller   10 September 1881

Summary

Has sent FM’s account of Pandanus and Oxalis to Nature ["Leaves injured at night by free radiation", Nature 24 (1881): 459].

Is crossing heterostyled plants.

Hopes to get his notes on bloom together.

Author:  Charles Robert Darwin
Addressee:  Johann Friedrich Theodor (Fritz) Müller
Date:  10 Sept 1881
Classmark:  The British Library (Loan MS 10 no : 54)
Letter no:  DCP-LETT-13326

To Fritz Müller   22 October 1881

Summary

Is in Cambridge with his son, resting

and reading F. M. Balfour’s Comparative embryology [1880–1].

Sent FM a copy of Earthworms.

Author:  Charles Robert Darwin
Addressee:  Johann Friedrich Theodor (Fritz) Müller
Date:  22 Oct 1881
Classmark:  The British Library (Loan MS 10 no 55)
Letter no:  DCP-LETT-13419

To Fritz Müller   13 November 1881

Summary

Is experimenting with effect of ammonium carbonate on chlorophyll and roots, but finds the results confusing.

Julius von Wiesner has published a book reinterpreting CD’s observations in Movement in plants [see 13422].

Author:  Charles Robert Darwin
Addressee:  Johann Friedrich Theodor (Fritz) Müller
Date:  13 Nov 1881
Classmark:  The British Library (Loan MS 10 no 56)
Letter no:  DCP-LETT-13481

To Fritz Müller   19 December 1881

Summary

Waxy secretion or "bloom" on leaves.

FM’s article on Crotalaria.

Author:  Charles Robert Darwin
Addressee:  Johann Friedrich Theodor (Fritz) Müller
Date:  19 Dec 1881
Classmark:  The British Library (Loan MS 10 no 57)
Letter no:  DCP-LETT-13564

To Fritz Müller   4 January 1882

Summary

On F. M. Balfour.

Effects of ammonium carbonate on roots.

FM’s Pontederia case is very curious.

Author:  Charles Robert Darwin
Addressee:  Johann Friedrich Theodor (Fritz) Müller
Date:  4 Jan 1882
Classmark:  The British Library (Loan MS 10 no 58)
Letter no:  DCP-LETT-13599

To Fritz Müller   10 August [1865]

Summary

Has read and admires FM’s work on species.

Observations on Crustacea are good and original; asks FM to dissect and check some of CD’s observations on cirripedes.

Has sent "Climbing plants" paper [J. Proc. Linn. Soc. Lond. 9 (1865): 1–118] and would like to send Orchids.

Author:  Charles Robert Darwin
Addressee:  Johann Friedrich Theodor (Fritz) Müller
Date:  10 Aug [1865]
Classmark:  The British Library (Loan MS 10 no 1)
Letter no:  DCP-LETT-4881

To Fritz Müller   20 September [1865]

Summary

Thanks for interesting letter on climbing plants.

FM’s view on Anelasma seems probable.

Difficulty quoted by FM from A. Agassiz on embryology of Echinodermata is quite beyond CD.

Author:  Charles Robert Darwin
Addressee:  Johann Friedrich Theodor (Fritz) Müller
Date:  20 Sept [1865]
Classmark:  The British Library (Loan MS 10 no 2)
Letter no:  DCP-LETT-4895

To Fritz Müller   17 October [1865]

Summary

Is sending FM’s two letters on climbing plants as a paper to the Linnean Society ["Notes on some of the climbing plants near Desterro, in south Brazil", J. Proc. Linn. Soc. Lond. (Bot.) 9 (1867): 344–9].

Adaptations for pollination in Catasetum.

Author:  Charles Robert Darwin
Addressee:  Johann Friedrich Theodor (Fritz) Müller
Date:  17 Oct [1865]
Classmark:  The British Library (Loan MS 10 no 3)
Letter no:  DCP-LETT-4916

To Fritz Müller   9 December [1865]

Summary

Has forwarded FM’s MS to Max Schultze, but did not read it.

Movement of stem apex in Linum.

Haeckel’s paper on reproduction in certain Medusae.

Author:  Charles Robert Darwin
Addressee:  Johann Friedrich Theodor (Fritz) Müller
Date:  9 Dec [1865]
Classmark:  The British Library (Loan MS 10 no 4)
Letter no:  DCP-LETT-4949

To Fritz Müller   11 January 1866

Summary

Has read FM’s paper on sponges ["Über Darwinella aurea", Arch. Miskrosk. Anat. 1 (1865): 344–53] with interest.

Has also read FM’s work on the metamorphoses of Peneus [Ann. & Mag. Nat. Hist. 3d ser. 14 (1864): 104–15], an interesting and important embryological discovery.

CD regards Louis Agassiz’s opinions as valueless.

Author:  Charles Robert Darwin
Addressee:  Johann Friedrich Theodor (Fritz) Müller
Date:  11 Jan 1866
Classmark:  The British Library (Loan MS 10 no 5)
Letter no:  DCP-LETT-4972

To Fritz Müller   [9 and] 15 April [1866]

Summary

Structure of Scaevola and its fertilisation with insect aid.

Fertilisation of Aristolochia.

FM’s paper on climbing plants [see 5146].

Is preparing new edition of Origin.

Author:  Charles Robert Darwin
Addressee:  Johann Friedrich Theodor (Fritz) Müller
Date:  9 and 15 Apr 1866
Classmark:  The British Library (Loan MS 10 no 6)
Letter no:  DCP-LETT-5050

To Fritz Müller   23 May 1866

Summary

Thanks for information on orchids

and facts on coastal flora and fauna.

Asks FM to look out for dimorphic aquatic and marsh plants.

Has read pamphlets "in our favour" by Carl v. Nägeli and Oscar Schmidt.

Author:  Charles Robert Darwin
Addressee:  Johann Friedrich Theodor (Fritz) Müller
Date:  23 May 1866
Classmark:  The British Library (Loan MS 10 no 7)
Letter no:  DCP-LETT-5097

To Fritz Müller   23 August [1866]

Summary

Thanks for observations on orchids.

FM’s paper on climbing plants [see 5146]; CD has received proofs.

Carl Claus’s pamphlet on copepods [Die Copepodenfauna von Nizza (1866)].

Author:  Charles Robert Darwin
Addressee:  Johann Friedrich Theodor (Fritz) Müller
Date:  23 Aug [1866]
Classmark:  The British Library (Loan MS 10 no 8)
Letter no:  DCP-LETT-5196

To Fritz Müller   25 September [1866]

Summary

Fertilisation in orchids: Friedrich Hildebrand’s paper.

Self-sterility.

Climbing plants.

Agassiz’s attempts to eliminate all Darwinian views.

Author:  Charles Robert Darwin
Addressee:  Johann Friedrich Theodor (Fritz) Müller
Date:  25 Sept [1866]
Classmark:  The British Library (Loan MS 10 no 9)
Letter no:  DCP-LETT-5216

To Fritz Müller   [before 10 December 1866]

Summary

Hildebrand’s paper on trimorphism in Oxalis ["Über den Trimorphismus in der Gattung Oxalis", Monatsber. K. Preuss. Akad. Wiss. Berlin (1866): 352–74].

Problems of explaining brightly coloured, attractive seeds.

Haeckel has visited Down.

FM’s climbing plants paper is printed [J. Proc. Linn. Soc. Lond. (Bot.) 9 (1867): 344–9].

Author:  Charles Robert Darwin
Addressee:  Johann Friedrich Theodor (Fritz) Müller
Date:  [before 10 Dec 1866]
Classmark:  The British Library (Loan MS 10 no 10)
Letter no:  DCP-LETT-5261

To Fritz Müller   [late December 1866 and] 1 January 1867

Summary

Thanks for observations on dimorphic plants. Dimorphism prevalent in certain groups throughout the world.

Retarded fertilisation in certain orchids.

Author:  Charles Robert Darwin
Addressee:  Johann Friedrich Theodor (Fritz) Müller
Date:  31 Dec 1866 and 1 Jan 1867
Classmark:  The British Library (Loan MS 10 no 11)
Letter no:  DCP-LETT-5331

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
Document type
letter (111)
Author
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Darwin, C. R.disabled_by_default
Müller, Fritzdisabled_by_default
Date
1865 (9)
1866 (13)
1867 (15)
1868 (12)
1869 (10)
1870 (4)
1871 (2)
1872 (1)
1873 (1)
1874 (4)
1875 (2)
1876 (3)
1877 (6)
1878 (7)
1879 (2)
1881 (17)
1882 (3)
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