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From Roland Trimen   2 September 1877

Summary

Thanks for Forms of flowers.

Author:  Roland Trimen
Addressee:  Charles Robert Darwin
Date:  2 Sept 1877
Classmark:  DAR 178: 192
Letter no:  DCP-LETT-11124

From Roland Trimen   16 March 1863

Summary

RT has sent his observations on orchids to CD. Has found only one case of an insect with a pollinium adhering to it.

Author:  Roland Trimen
Addressee:  Charles Robert Darwin
Date:  16 Mar 1863
Classmark:  DAR 70: 180, DAR 178: 184
Letter no:  DCP-LETT-4046

From Roland Trimen   16, 17, and 19 July 1863

Summary

Thanks CD for two letters and his portrait.

CD’s book [Orchids] opened up terra incognita for him.

His work on S. African butterflies continues.

Reports on a moth that punctures peach skins.

Interesting that thoughtful naturalists are forced to admit mutability of species.

Some notes on Oxalis.

Author:  Roland Trimen
Addressee:  Charles Robert Darwin
Date:  16, 17 and 19 July 1863
Classmark:  DAR 99: 13–16d
Letter no:  DCP-LETT-4243

From Roland Trimen   10, 13, and 18 October 1863

Summary

Comments on CD’s paper on Linum [Collected papers 2: 93–105].

Sends specimens of dimorphic and trimorphic Oxalis.

Comments on H. W. Bates’s work [Naturalist on the river Amazons].

Author:  Roland Trimen
Addressee:  Charles Robert Darwin
Date:  10, 13 and 18 Oct 1863
Classmark:  DAR 109: B122–3
Letter no:  DCP-LETT-4319

From Roland Trimen   13 December 1865

Summary

Butterflies of Mauritius.

RT’s Bonatea paper published by Linnean Society [J. Linn. Soc. Lond. (Bot.) 9 (1867): 156–60].

Author:  Roland Trimen
Addressee:  Charles Robert Darwin
Date:  13 Dec 1865
Classmark:  DAR 178: 185
Letter no:  DCP-LETT-4951

From Roland Trimen   31 December 1867

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Summary

On ocelli.

Sexual differences and proportion of sexes in butterflies.

Coleoptera.

[See Descent 1: 310; 2: 132.]

Author:  Roland Trimen
Addressee:  Charles Robert Darwin
Date:  31 Dec 1867
Classmark:  DAR 82: A30–1
Letter no:  DCP-LETT-5744

From Roland Trimen   13 January 1868

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Summary

Variations in the ocelli of Lepidoptera.

Encloses six pages from his catalogue of S. African butterflies [Rhopalocera Africae australis, 2 pts (1862, 1866)].

Author:  Roland Trimen
Addressee:  Charles Robert Darwin
Date:  13 Jan 1868
Classmark:  DAR 84.1: 40–2, 168
Letter no:  DCP-LETT-5785

From Roland Trimen   10 February 1868

Summary

Sends prospectus of forthcoming work by his brother [Henry Trimen] and W. T. Thiselton-Dyer [Flora of Middlesex (1869)]. Hopes CD will subscribe.

Author:  Roland Trimen
Addressee:  Charles Robert Darwin
Date:  10 Feb 1868
Classmark:  DAR 178: 186, DAR 84.1: 135b
Letter no:  DCP-LETT-5857

From Roland Trimen   20 February 1868

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Summary

Proportion of sexes in butterflies; discussion of subject at meeting of Entomological Society, London.

Attraction of males by female Lasiocampa quercus. [see Descent 1: 311–12.]

Author:  Roland Trimen
Addressee:  Charles Robert Darwin
Date:  20 Feb 1868
Classmark:  DAR 85: B59–60a
Letter no:  DCP-LETT-5902

From Roland Trimen   20 March [1868]

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Summary

On attraction of males by females in moths. H. T. Stainton mentions a case.

Author:  Roland Trimen
Addressee:  Charles Robert Darwin
Date:  20 Mar [1868]
Classmark:  DAR 86: A92–3
Letter no:  DCP-LETT-6030

From Roland Trimen   26 March 1868

Summary

Coloration in moths.

Quotes Achille Guénée on relative proportion of sexes in Phalaenites.

Author:  Roland Trimen
Addressee:  Charles Robert Darwin
Date:  26 Mar 1868
Classmark:  DAR 81: 76, DAR 85: B61–2, DAR 84.1: 134–5
Letter no:  DCP-LETT-6055

From Roland Trimen   27 March 1868

Summary

Approves CD’s revision on coloration of moths.

Impressed with apparent adverse tendencies: one toward sexual selection, the other toward protection.

Author:  Roland Trimen
Addressee:  Charles Robert Darwin
Date:  27 Mar 1868
Classmark:  DAR 82: A120v
Letter no:  DCP-LETT-6061

From Roland Trimen   13 April 1868

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Summary

Extract from Émile Blanchard’s Metamorphoses, moeurs et instincts des insectes [1868], on attraction of males by female Lepidoptera, and possible explanation.

Author:  Roland Trimen
Addressee:  Charles Robert Darwin
Date:  13 Apr 1868
Classmark:  DAR 85: B50–1
Letter no:  DCP-LETT-6116

From Roland Trimen   18 November 1869

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Summary

Thanks CD for his orchid paper ["Fertilization of orchids", Collected papers 2: 138–56]. Comments briefly on orchids.

Discusses moths in which the wing underside is the most brightly coloured, and relates his observations on sexual selection by a moth, Syntomis.

Author:  Roland Trimen
Addressee:  Charles Robert Darwin
Date:  18 Nov 1869
Classmark:  DAR 82: 27–9
Letter no:  DCP-LETT-6995

From Roland Trimen   17 and 18 April 1871

Summary

Man’s spiritual life separates him from other animals.

Why are moths attracted, often fatally, to lights?

Thanks for copy of Descent.

Author:  Roland Trimen
Addressee:  Charles Robert Darwin
Date:  17 and 18 Apr 1871
Classmark:  DAR 178: 187
Letter no:  DCP-LETT-7692

From Roland Trimen   26 July 1871

Summary

Hopes to visit during CD’s stay at Haredene.

Author:  Roland Trimen
Addressee:  Charles Robert Darwin
Date:  26 July 1871
Classmark:  DAR 178: 188
Letter no:  DCP-LETT-7883

From Roland Trimen   [21] August [1871]

Summary

Intends to visit CD at Haredene.

Author:  Roland Trimen
Addressee:  Charles Robert Darwin
Date:  [21] Aug [1871]
Classmark:  DAR 178: 189
Letter no:  DCP-LETT-7915

From Roland Trimen   20 September 1871

Summary

On St G. J. Mivart’s Genesis of species and Chauncey Wright’s review of it [North Am. Rev. (July 1871)].

Author:  Roland Trimen
Addressee:  Charles Robert Darwin
Date:  20 Sept 1871
Classmark:  DAR 178: 190
Letter no:  DCP-LETT-7956

From Roland Trimen   13 April 1872

Summary

On new [6th] edition of the Origin; comments on additions.

Owen’s attitude toward evolution.

Author:  Roland Trimen
Addressee:  Charles Robert Darwin
Date:  13 Apr 1872
Classmark:  DAR 178: 191
Letter no:  DCP-LETT-8285
Document type
letter (19)
Author
Addressee
Darwin, C. R.[X]
Correspondent
Date
1863 (3)
1865 (1)
1867 (1)
1868 (7)
1869 (1)
1871 (4)
1872 (1)
1877 (1)
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