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From Alphonse de Candolle   15 July 1868

Summary

Corrects himself on Robinia pseud-acacia: its spines are stipules, which explains hereditary fixity.

AdeC’s observations on movement of scalp muscles.

Author:  Alphonse de Candolle
Addressee:  Charles Robert Darwin
Date:  15 July 1868
Classmark:  DAR 161: 15
Letter no:  DCP-LETT-6277

To Alphonse de Candolle   20 July [1868]

Summary

Thanks AdeC for correcting an error about thorns, which CD might have quoted.

CD will be cautious in regard to the muscles of the scalp. [Descent 1: 20].

His health has failed again "in the usual manner" and he has been ordered to do no work.

Repeats how interested and pleased he was by AdeC’s last long, remarkable letter.

Author:  Charles Robert Darwin
Addressee:  Alphonse de Candolle
Date:  20 July [1868]
Classmark:  Archives de la famille de Candolle (private collection)
Letter no:  DCP-LETT-6282

From Alphonse de Candolle   28 September 1869

Summary

Reports on the differences of growth and development of plants of three species grown at Geneva from seed collected at different localities. Forwards seed for CD to plant and observe differences in development.

Carl Linsseer has published a memoir on the times of flowering, foliation, etc. of diverse species in different parts of Europe [Mem. Acad. Imp. Sci. St.-Pétersbourg 7th ser. 11 no. 7 (1868)] and concludes that the northern forms are more forward and that this is hereditary. AdeC’s experiments carried out on annuals, show only the effects of heredity; probably the direct action of physical conditions affects development, at least in perennial species.

Author:  Alphonse de Candolle
Addressee:  Charles Robert Darwin
Date:  28 Sept 1869
Classmark:  DAR 261.11: 32.i (EH 88206083)
Letter no:  DCP-LETT-6915

To Alphonse de Candolle   11 October 1869

Summary

Thanks AdeC for his interesting letter [6915]. The experiment strikes CD as a very valuable one. CD has forwarded the letter to Hooker, who is glad to make the trial. CD will have many experiments in progress next spring but he will open the packet of seeds and if they are numerous, will try a few himself.

Author:  Charles Robert Darwin
Addressee:  Alphonse de Candolle
Date:  11 Oct 1869
Classmark:  Archives de la famille de Candolle (private collection)
Letter no:  DCP-LETT-6933

From Alphonse de Candolle   8 March 1871

Summary

Thanks for Descent.

Reveals that it is his own family that has the movable scalp.

The Franco-Prussian war has held up the publication of the 17th and last volume of the Prodromus.

Author:  Alphonse de Candolle
Addressee:  Charles Robert Darwin
Date:  8 Mar 1871
Classmark:  DAR 161: 16
Letter no:  DCP-LETT-7557

To Alphonse de Candolle   2 November [1872]

Summary

Thanks for AdeC’s Histoire des sciences [1873].

Sends a copy of Expression.

His health keeps him weak; he dreads grappling with the fearful subject of variation [in nature]

so he is working up some observations in botanical physiology to publish with his old papers on climbing plants.

Author:  Charles Robert Darwin
Addressee:  Alphonse de Candolle
Date:  2 Nov [1872]
Classmark:  Archives de la famille de Candolle (private collection)
Letter no:  DCP-LETT-8593

To Alphonse de Candolle   11 December 1872

Summary

Thanks AdeC for great pleasure his new book [Histoire des sciences (1873)] has given him. Comments on several of the essays.

When AdeC backs up Asa Gray in saying all instincts are congenital habits, CD must protest.

Asks several questions about butterflies of the Alps discussed on p. 322 [of Histoire].

Author:  Charles Robert Darwin
Addressee:  Alphonse de Candolle
Date:  11 Dec 1872
Classmark:  Archives de la famille de Candolle (private collection)
Letter no:  DCP-LETT-8672

From Alphonse de Candolle   14 January 1873

Summary

Thanks for Expression, which has made him wonder whether his shyness in public until the age of 55 resulted from fear of subjecting his face to ridicule.

Criticises F. Galton’s Hereditary genius [1869] for neglecting environmental influence.

Author:  Alphonse de Candolle
Addressee:  Charles Robert Darwin
Date:  14 Jan 1873
Classmark:  DAR 161: 17
Letter no:  DCP-LETT-8737

To Alphonse de Candolle   18 January [1873]

Summary

The evidence of tameness of Alpine butterflies [see 8672] seems good and the fact is surprising to CD for they can hardly have acquired this in their short life-time.

The question whether butterflies are attracted to bright colours independently of the supposed presence of nectar is still unanswered.

CD has great difficulty in believing that any temporary condition of parents can affect the offspring.

Pangenesis is much reviled, but CD must still look at generation from this point of view, which makes him averse to believing that an emotion has any effect on the offspring.

Author:  Charles Robert Darwin
Addressee:  Alphonse de Candolle
Date:  18 Jan [1873]
Classmark:  Archives de la famille de Candolle (private collection)
Letter no:  DCP-LETT-8741

To Alphonse de Candolle   28 May 1880

Summary

Thanks for AdeC’s Phytographie [1880]. CD finds in it a number of "philosophical" remarks new to him. The work would have been invaluable to him in dealing with puzzles when writing his cirripede monographs.

Describes his system of keeping notes on separate pieces of paper filed in several scores of large portfolios.

Has just sent MS of Movement in plants to the printer. Thinks he has suceeded in showing "that all the more important great classes of movements are due to the modification of a kind of movement common to all plants from their earliest youth".

Author:  Charles Robert Darwin
Addressee:  Alphonse de Candolle
Date:  28 May 1880
Classmark:  Archives de la famille de Candolle (private collection)
Letter no:  DCP-LETT-12618

From Alphonse de Candolle   23 November 1880

Summary

Finds CD was correct in Variation: hybrid bees tend to sting more often than pure-bred bees.

Preparing a second edition of the chapter on the origin of cultivated plants in his Géographie botanique. The work done since 1855 confirms his opinions.

Author:  Alphonse de Candolle
Addressee:  Charles Robert Darwin
Date:  23 Nov 1880
Classmark:  DAR 161: 26
Letter no:  DCP-LETT-12847

From Alphonse de Candolle   18 January [1881]

Summary

Thanks for Movement in plants. Praises the terms CD introduces, but criticises CD’s use of the teleological word "purpose".

Outlines his efforts to study the inheritance of characters in his family. F. Galton overemphasises the inheritance of good qualities.

Author:  Alphonse de Candolle
Addressee:  Charles Robert Darwin
Date:  18 Jan [1881]
Classmark:  DAR 161: 25
Letter no:  DCP-LETT-13017

To Alphonse de Candolle   24 January 1881

Summary

Thanks AdeC for interesting letter. CD has been annoyed by the multitude of new terms lately invented in all branches of biology in Germany. What AdeC says about the word "purpose" made CD vow not to use it again, but it is difficult to cure oneself of a vicious habit and difficult to avoid for anyone who tries to make out the use of a structure.

Francis will write about the diagram [see 13642].

Author:  Charles Robert Darwin
Addressee:  Alphonse de Candolle
Date:  24 Jan 1881
Classmark:  Archives de la famille Candolle (private collection)
Letter no:  DCP-LETT-13026

To Alphonse de Candolle   6 July [1881]

Summary

Thanks for a "grand volume" [vol. 3 of Monographiae phanerogamarum (1878–96)].

Author:  Charles Robert Darwin
Addressee:  Alphonse de Candolle
Date:  6 July [1881]
Classmark:  Archives de la famille Candolle (private collection)
Letter no:  DCP-LETT-13236

From Alphonse de Candolle   9 July 1881

Summary

AdeC thinks Monographiae phanerogamarum may be of some use to CD for the most nearly correct names to adopt.

Author:  Alphonse de Candolle
Addressee:  Charles Robert Darwin
Date:  9 July 1881
Classmark:  DAR 161: 27
Letter no:  DCP-LETT-13239

To Alphonse de Candolle   4 August [1863]

Summary

Asks AdeC to observe two species of Lythrum to see whether they are dimorphic as stated by Vaucher. CD can find no trace of this in dried specimens he has examined; "if either species present any difference in length of pistil and stamens, it is most likely that three forms should be presented".

Author:  Charles Robert Darwin
Addressee:  Alphonse de Candolle
Date:  4 Aug [1863]
Classmark:  Archives de la famille de Candolle (private collection)
Letter no:  DCP-LETT-4263

From Alphonse de Candolle   3 June 1866

Summary

In London for the Botanical Congress; regrets missing CD.

Lyell and CD have mistaken H. Lecoq’s position on glaciers. He has not denied the possibility of a glacial period, only that decreased temperature is needed for their extension.

Recommends F. J. Ruprecht on vegetable detritus in the black earth chernozem of Russia.

Author:  Alphonse de Candolle
Addressee:  Charles Robert Darwin
Date:  3 June 1866
Classmark:  DAR 161: 12
Letter no:  DCP-LETT-5111

From Alphonse de Candolle   15 March 1868

Summary

Thanks for Variation.

Author:  Alphonse de Candolle
Addressee:  Charles Robert Darwin
Date:  15 Mar 1868
Classmark:  DAR 161: 13
Letter no:  DCP-LETT-6013

From Alphonse de Candolle   2 July 1868

Summary

Offers notes and reflections on Variation.

Not convinced by Pangenesis, particularly its dependence on the Cytisus [graft hybrid] examples [ch. 27 and ch. 11].

What a book could be written on the application of natural history to man! Gives examples of inheritance in man.

Author:  Alphonse de Candolle
Addressee:  Charles Robert Darwin
Date:  2 July 1868
Classmark:  DAR 161: 14
Letter no:  DCP-LETT-6264

To Alphonse de Candolle   6 July 1868

Summary

Thanks AdeC for his long letter full of interesting facts, which will be of great use if a new edition [of Variation] is demanded.

As for when CD will publish on variation in a state of nature: he has had the MS almost ready for several years but Variation fatigued him so much

that "I determined to amuse myself by publishing a short essay on the Descent of Man".

AdeC will have plenty of time to publish his views. Asks permission to quote AdeC on a case of inheritance of scalp-muscles [see Descent 1: 20].

Hooker has expressed a view, similar to AdeC’s, "that morals & politics would be very interesting if discussed like any branch of Natural History".

Agrees with AdeC on acclimatisation

and on graft-hybrids.

CD is repeating Hildebrand’s method in producing graft-hybrid potatoes.

As for Pangenesis, very few people approve of it though it has some enthusiastic friends and CD has much faith in its vitality.

Author:  Charles Robert Darwin
Addressee:  Alphonse de Candolle
Date:  6 July 1868
Classmark:  Archives de la famille de Candolle (private collection)
Letter no:  DCP-LETT-6269
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letter (37)
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Candolle, Alphonse de[X]
Darwin, C. R. (37)
Darwin, Emma (1)
Wedgwood, Emma (1)
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