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Darwin, C. R. in correspondent 
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From:
Charles Robert Darwin
To:
Johann Friedrich Theodor (Fritz) Müller
Date:
18 Mar 1869
Source of text:
The British Library (Loan MS 10 no 28)
Summary:

On English edition of Für Darwin; CD’s gratitude and admiration.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Johann Friedrich Theodor (Fritz) Müller
Date:
18 July [1869]
Source of text:
The British Library (Loan MS 10 no 29)
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.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Johann Friedrich Theodor (Fritz) Müller
Date:
8 Sept [1869]
Source of text:
The British Library (Loan MS 10 no 30)
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.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Johann Friedrich Theodor (Fritz) Müller
Date:
1 Dec [1869]
Source of text:
The British Library (Loan MS 10 no 31)
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.

Contributor:
Darwin Correspondence Project
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