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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

From Fritz Müller   [c. January 1874]

Summary

Agrees with Bates that neuter termites are not modified imagos (sterile females), but modified larvae (of both sexes).

Systematic relations of stingless honey-bees (Melipona and Trigona) are not yet well established.

Author:  Johann Friedrich Theodor (Fritz) Müller
Addressee:  Charles Robert Darwin
Date:  [c. Jan 1874]
Classmark:  Nature, 19 February 1874, p. 309
Letter no:  DCP-LETT-9281

From Fritz Müller   20 April [1874]

Summary

FM gives his own observations of leaf-cutting ants, which support those of Thomas Belt in his book [The naturalist in Nicaragua (1873)]. [See 9223.] These ants feed only upon the fungus that grows upon the leaves that they carry to their nests.

He has caught a moth of the Glaucopidæ that when touched emitted a cloud of snow-white wool.

Observations on the stingless bees of Brazil.

Author:  Johann Friedrich Theodor (Fritz) Müller
Addressee:  Charles Robert Darwin
Date:  20 Apr [1874]
Classmark:  Nature, 11 June 1874, pp. 102–3
Letter no:  DCP-LETT-9422A
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letter (4)
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Darwin, C. R.disabled_by_default
Müller, Fritzdisabled_by_default
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