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From Fritz Müller   12 September 1875

Summary

Has read CD’s book on Drosera [Insectivorous plants] and found that it presents new material and is very interesting.

Has discovered that the parasites he thought he had found in Melipona nests are in fact true females. It is remarkable that they differ so greatly from the sterile females and males of their species.

Author:  Johann Friedrich Theodor (Fritz) Müller
Addressee:  Charles Robert Darwin
Date:  12 Sept 1875
Classmark:  Möller ed. 1915–21, 2: 318; Royal Botanic Gardens, Kew (PrP 08-0011)
Letter no:  DCP-LETT-10155A

From Fritz Müller   25 December 1875

Summary

"Sambaquis", or shell mounds accumulated by former inhabitants of the coast, contain shells of some animals that FM has never seen living.

Ants that live on imbauba trees (Cecropia) are attracted by small bodies at base of each petiole.

Author:  Johann Friedrich Theodor (Fritz) Müller
Addressee:  Charles Robert Darwin
Date:  25 Dec 1875
Classmark:  Nature, 17 February 1876, pp. 304–5
Letter no:  DCP-LETT-10324
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letter (2)
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