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From Mary Treat   3 April 1876

Summary

Encloses Pinguicula specimens.

Believes she has found a new species of water-lily.

Author:  Mary Lua Adelia (Mary) Davis; Mary Lua Adelia (Mary) Treat
Addressee:  Charles Robert Darwin
Date:  3 Apr 1876
Classmark:  DAR 178: 178
Letter no:  DCP-LETT-10439

From Mary Treat   15 May 1876

Summary

Sends her article on Utricularia ["Is the valve of Utricularia sensitive?", Harper’s New Mon. Mag. 52 (1875): 382–7].

Proposes to write on Sarracenia ["Carnivorous plants of Florida", Harper’s New Mon. Mag. 53 (1876): 546–8, 710–14].

Author:  Mary Lua Adelia (Mary) Davis; Mary Lua Adelia (Mary) Treat
Addressee:  Charles Robert Darwin
Date:  15 May 1876
Classmark:  DAR 178: 179
Letter no:  DCP-LETT-10508

From Mary Treat   20 December 1871

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Summary

Describes fly-catching activity of Drosera longifolia.

Experiments on Papilio asterias; sex of adult determined by length of larval feeding time.

Author:  Mary Lua Adelia (Mary) Davis; Mary Lua Adelia (Mary) Treat
Addressee:  Charles Robert Darwin
Date:  20 Dec 1871
Classmark:  DAR 58.1: 33
Letter no:  DCP-LETT-8113

From Mary Treat   13 December 1872

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Summary

Drosera filiformis captures only small insects [but see 8989].

Writes of her experiments with butterflies.

CD’s theory steadily gains ground in the U. S., despite Agassiz.

Author:  Mary Lua Adelia (Mary) Davis; Mary Lua Adelia (Mary) Treat
Addressee:  Charles Robert Darwin
Date:  13 Dec 1872
Classmark:  DAR 58.1: 23–4
Letter no:  DCP-LETT-8676

From Mary Treat   28 July 1873

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Summary

Reports in detail on her experiments with Drosera. Finds she was mistaken in thinking D. filiformis captured only small insects.

Author:  Mary Lua Adelia (Mary) Davis; Mary Lua Adelia (Mary) Treat
Addressee:  Charles Robert Darwin
Date:  28 July 1873
Classmark:  DAR 58.1: 30–2
Letter no:  DCP-LETT-8989

From Mary Treat   8 June 1874

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Summary

Sends her observations on Dionaea capturing insects. [See Insectivorous plants, pp. 311–12.]

Author:  Mary Lua Adelia (Mary) Davis; Mary Lua Adelia (Mary) Treat
Addressee:  Charles Robert Darwin
Date:  8 June 1874
Classmark:  DAR 58.1: 58–9
Letter no:  DCP-LETT-9485

From Mary Treat   22 October 1874

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Summary

Observation on the limitations on the power of digestion in Dionaea.

Author:  Mary Lua Adelia (Mary) Davis; Mary Lua Adelia (Mary) Treat
Addressee:  Charles Robert Darwin
Date:  22 Oct 1874
Classmark:  DAR 58.1: 108
Letter no:  DCP-LETT-9692

From Mary Treat   2 December 1874

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Summary

Observations on the insects captured by Utricularia.

Author:  Mary Lua Adelia (Mary) Davis; Mary Lua Adelia (Mary) Treat
Addressee:  Charles Robert Darwin
Date:  2 Dec 1874
Classmark:  DAR 58.1: 109–10
Letter no:  DCP-LETT-9740

From Mary Treat   11 February 1875

Summary

Structure of Utricularia; its resemblance to an animal vascular system.

Author:  Mary Lua Adelia (Mary) Davis; Mary Lua Adelia (Mary) Treat
Addressee:  Charles Robert Darwin
Date:  11 Feb 1875
Classmark:  DAR 178: 177
Letter no:  DCP-LETT-9853
Document type
letter (9)
Addressee
Darwin, C. R.disabled_by_default
Correspondent
Date
1871 (1)
1872 (1)
1873 (1)
1874 (3)
1875 (1)
1876 (2)