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To George Henslow   7 December [1871]

Summary

Refers GH to vol. 2, p. 431 of Variation for the "perplexed conclusion" at which CD has arrived on variation and design. Has nothing to add to this statement.

Author:  Charles Robert Darwin
Addressee:  George Henslow
Date:  7 Dec [1871]
Classmark:  Linnean Society of London (C.452)
Letter no:  DCP-LETT-8099

To George Henslow   16 April [1866]

Summary

F. Hildebrand, in his recent article [Bot. Ztg. 10 (1866): 73–8], describes what GH showed CD about Indigofera’s irritability.

Author:  Charles Robert Darwin
Addressee:  George Henslow
Date:  16 Apr [1866]
Classmark:  Linnean Society of London, C451: Opuscula
Letter no:  DCP-LETT-5058

To George Henslow   [before 19 April 1866]

Summary

Describes the pollination of broom by bees.

Author:  Charles Robert Darwin
Addressee:  George Henslow
Date:  [before 19 Apr 1866]
Classmark:  Journal of the Linnean Society (Botany) 9 (1867): 358
Letter no:  DCP-LETT-5059F

To George Henslow   12 June [1866]

Summary

Returns proofs of GH’s paper ["On hybridization among plants", Pop. Sci. Rev. 5 (1866): 304–13] with his criticisms. Prefers that GH not state that CD has read the proofs.

Does C. V. Naudin really say that ovules (not seed) of hybrid Luffa and Cucumis are imperfect?

Author:  Charles Robert Darwin
Addressee:  George Henslow
Date:  12 June [1866]
Classmark:  Fitzwilliam Museum, Cambridge
Letter no:  DCP-LETT-5118

To George Henslow   15 [June 1866]

Summary

CD believes most strongly in reversion. J. G. Kölreuter’s, K. F. v Gärtner’s, and some of Charles Naudin’s cases leave no doubt in his mind. Forgets whether Herbert gave cases but in conversation he certainly believed in it. Thinks Gärtner is right to say reversion occurs only rarely in plant hybrids which have not been cultivated. [See 5120.]

Variation

Author:  Charles Robert Darwin
Addressee:  George Henslow
Date:  15 [June 1866]
Classmark:  DAR Library: tipped into George Henslow’s copy of Variation
Letter no:  DCP-LETT-5123A

To George Henslow   23 October [1876]

Summary

Floral structure. The order of the development of the whorls and its relationship to a protandrous or protogynous condition in flowers.

Author:  Charles Robert Darwin
Addressee:  George Henslow
Date:  23 Oct [1876]
Classmark:  Darwin Library–CUL, Henslow 1888 (tipped in opposite p. 190)
Letter no:  DCP-LETT-10648

To George Henslow   11 February 1879

Summary

Disagrees with GH over the value of cross-fertilisation.

Author:  Charles Robert Darwin
Addressee:  George Henslow
Date:  11 Feb 1879
Classmark:  DAR (CD Library - G. Henslow 1888)
Letter no:  DCP-LETT-11870

To George Henslow   [2–5 November 1865]

Summary

Reports the results of an experiment to compare the weight of seeds produced in plants of [Medicago sativa] by self-pollination and by insect pollination.

Author:  Charles Robert Darwin
Addressee:  George Henslow
Date:  [2–5 Nov 1865]
Classmark:  Journal of the Linnean Society (Botany) 9 (1867): 328 n.
Letter no:  DCP-LETT-4929F

From George Henslow   [c. 7 December 1876]

Summary

Considers some flowers especially adapted for self-fertilisation, and believes all flowers are self-fertilising under some conditions. Gives examples of plants in which he believes all flowers are cleistogamous. Believes self-fertilisation is the primordial condition of flowering plants.

Author:  George Henslow
Addressee:  Charles Robert Darwin
Date:  [c. 7 Dec 1876]
Classmark:  DAR 166: 149
Letter no:  DCP-LETT-8204

From George Henslow   8 February 1879

Summary

GH no longer believes in the value of cross-fertilisation in plants.

Author:  George Henslow
Addressee:  Charles Robert Darwin
Date:  8 Feb 1879
Classmark:  DAR 166: 175
Letter no:  DCP-LETT-11864

From George Henslow   1 November 1865

Summary

Has made observations on pollination mechanism in Medicago sativa [J. Linn. Soc. Lond. (Bot.) 9 (1867): 327–9], which his brother-in-law [J. D. Hooker] would accept. Wants to check that CD has not already made them.

Also sends interpretation of Salvia.

His observations come from following CD’s generalisation in Origin [p. 79] on necessity of out-crossing.

Author:  George Henslow
Addressee:  Charles Robert Darwin
Date:  1 Nov 1865
Classmark:  DAR 166: 150
Letter no:  DCP-LETT-4928

From George Henslow   6 November 1865

Summary

Pleased CD confirms his observations on Salvia.

Spring action of Medicago stamens described.

Author:  George Henslow
Addressee:  Charles Robert Darwin
Date:  6 Nov 1865
Classmark:  DAR 166: 151
Letter no:  DCP-LETT-4931

From George Henslow   2 December 1865

Summary

Has been writing a review of CD’s "Climbing plants" for Popular Science Review [5 (1866): 55–65].

Author:  George Henslow
Addressee:  Charles Robert Darwin
Date:  2 Dec 1865
Classmark:  DAR 166: 152, 152/1
Letter no:  DCP-LETT-4944

From George Henslow   8 March 1866

Summary

Reviewing C. V. Naudin’s article ["Nouvelles recherches sur l’hybridité dans les végétaux", Ann. Sci. Nat. (Bot.) 4th ser. 19 (1863): 180–203] for Popular Science Review [5 (1866): 304–13]. Requests references.

Proposes to visit Down on Easter weekend.

Author:  George Henslow
Addressee:  Charles Robert Darwin
Date:  8 Mar 1866
Classmark:  DAR 166: 153
Letter no:  DCP-LETT-5029

From George Henslow   12 March 1866

Summary

Thanks for references for his Naudin–hybridism paper [see 5029].

Author:  George Henslow
Addressee:  Charles Robert Darwin
Date:  12 Mar 1866
Classmark:  DAR 166: 154
Letter no:  DCP-LETT-5033

From George Henslow   17 March [1866]

Summary

Forgot to thank CD for his praise of tendril paper [see 4944].

Author:  George Henslow
Addressee:  Charles Robert Darwin
Date:  17 Mar [1866]
Classmark:  DAR 166: 155
Letter no:  DCP-LETT-5036

From George Henslow   [18–30 March 1866]

Summary

Cannot come to Down on weekend because of teaching duties.

Author:  George Henslow
Addressee:  Charles Robert Darwin
Date:  [18–30 Mar 1866]
Classmark:  DAR 166: 156
Letter no:  DCP-LETT-5037

From George Henslow   [after 19 April 1866]

Summary

Thanks for explanation on relative fertility of homostyled and heterostyled crosses in Primula. Sends an intermediate form with small stamens, but stigma only slightly above stamens.

Election as Botanical Lecturer at St Bartholomew’s Hospital.

Author:  George Henslow
Addressee:  Charles Robert Darwin
Date:  [after 19 Apr 1866]
Classmark:  DAR 166: 160
Letter no:  DCP-LETT-5044

From George Henslow   7 April 1866

Summary

Sends copies of Science gossip and The leisure hour.

Enjoyed visit.

His criticism of Primula fertility referred to table 2 [Collected papers 2: 56] where weight of seeds produced from good pods by long-styled homostylous cross and short-styled heterostylous cross are virtually identical.

Author:  George Henslow
Addressee:  Charles Robert Darwin
Date:  7 Apr 1866
Classmark:  DAR 166: 157
Letter no:  DCP-LETT-5048

From George Henslow   18 May 1866

Summary

Has written his Naudin–hybridism article [Pop. Sci. Rev. 5 (1866): 304–13]. Would like CD to criticise proofs.

Will return books borrowed from CD.

Author:  George Henslow
Addressee:  Charles Robert Darwin
Date:  18 May 1866
Classmark:  DAR 166: 159
Letter no:  DCP-LETT-5095
Document type
letter (37)
Addressee
Correspondent
Darwin, C. R.[X]
Henslow, George[X]
Date
1865 (4)
1866 (14)
1867 (2)
1868 (3)
1869 (4)
1870 (1)
1871 (2)
1876 (4)
1878 (1)
1879 (2)
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