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From:
Charles Robert Darwin
To:
Johann Friedrich Theodor (Fritz) Müller
Date:
12 May 1870
Source of text:
The British Library (Loan MS 10 no 32)
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.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Johann Friedrich Theodor (Fritz) Müller
Date:
28 Aug 1870
Source of text:
The British Library (Loan MS 10 no 33)
Summary:

Mimicry in Lepidoptera.

Sexual selection.

The Franco-Prussian war.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Johann Friedrich Theodor (Fritz) Müller
Date:
2 Aug [1871]
Source of text:
The British Library (Loan MS 10 no 34)
Summary:

Opinions on Descent.

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

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Johann Friedrich Theodor (Fritz) Müller
Date:
25 Sept 1873
Source of text:
The British Library (Loan MS 10 no 35)
Summary:

Seedling vigour resulting from crossing of parents.

CD to publish work on insectivorous plants.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Johann Friedrich Theodor (Fritz) Müller
Date:
1 Jan 1874
Source of text:
The British Library (Loan MS 10 no 36)
Summary:

Thanks for two pamphlets.

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

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Johann Friedrich Theodor (Fritz) Müller
Date:
13 Feb 1874
Source of text:
The British Library (Loan MS 10 no 37)
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.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Johann Friedrich Theodor (Fritz) Müller
Date:
[9 Feb 1876]
Source of text:
The British Library (Loan MS 10 no 38) (EH 88205868)
Summary:

Has sent FM’s letter on to Nature ["Brazil kitchen middens, habits of ants, etc.", Nature 13 (1876): 304–5].

Would be grateful for Ceropegia seeds.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Johann Friedrich Theodor (Fritz) Müller
Date:
[18 Feb 1876]
Source of text:
The British Library (Loan MS 10 no 39) (EH 88205869)
Summary:

Has received seeds of Cecropia peltata from Kew.

Has asked Hermann Müller to send copy of FM’s paper as soon as published.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Johann Friedrich Theodor (Fritz) Müller
Date:
11 Dec 1876
Source of text:
The British Library (Loan MS 10 no 40) (EH 88205870)
Summary:

FM’s new position in Rio.

CD interested in nature of surface deposits at Rio.

Sends a copy of Cross and self-fertilisation.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Johann Friedrich Theodor (Fritz) Müller
Date:
9 May 1877
Source of text:
The British Library (Loan MS 10 no 41)
Summary:

Is printing a book on dimorphic plants [Forms of flowers] in which he will make considerable use of FM’s work.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Johann Friedrich Theodor (Fritz) Müller
Date:
14 May 1877
Source of text:
The British Library (Loan MS 10 no 42)
Summary:

Requests observations on sensitive Mimosa and movements of plants in rain.

Worm-castings.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Johann Friedrich Theodor (Fritz) Müller
Date:
13 Nov 1877
Source of text:
The British Library (Loan MS 10 no 43)
Summary:

Asks for Cassia seed for experiments.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Johann Friedrich Theodor (Fritz) Müller
Date:
12 Jan 1878
Source of text:
The British Library (Loan MS 10 no 44)
Summary:

CD and son [Francis] working on spontaneous movements of plants and heliotropism.

Has given [Raphael Meldola] permission to read extracts of FM’s last letter [not found], on odours emitted by moths, before Entomological Society [Trans. R. Entomol. Soc. Lond. (1878): ii–iii].

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Johann Friedrich Theodor (Fritz) Müller
Date:
27 Mar 1878
Source of text:
The British Library (Loan MS 10 no 45)
Summary:

Thanks FM for letter of 22 Feb [not found] on Lepidoptera. Will send it to Entomological Society to be read. FM’s earlier letters produced best discussions of the season.

Thanks for seeds of Viola.

He and Francis [Darwin] are at work on biology of seedling plants and wish to observe how the flowers penetrate the earth.

The Pontederia did not germinate, probably pressed too much [in post].

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Johann Friedrich Theodor (Fritz) Müller
Date:
16 May 1878
Source of text:
The British Library (Loan MS 10 no 46)
Summary:

Has forwarded FM’s letter to Raphael Meldola.

Thanks for information on Mimosa.

Would like to know how Cassia behaves in the rain.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Johann Friedrich Theodor (Fritz) Müller
Date:
24 July 1878
Source of text:
The British Library (Loan MS 10 no 47)
Summary:

Thanks for seeds

and information about earthworms.

Is working hard at movement in plants.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Johann Friedrich Theodor (Fritz) Müller
Date:
4 Mar 1879
Source of text:
The British Library (Loan MS 10 no 48)
Summary:

Has sent FM’s letter on caddis-fly to Nature ["On a frog and caddis-flies", Nature 19 (1879): 462–4].

Contributor:
Darwin Correspondence Project