To J. D. Hooker 22 [May 1864]
Summary
CD’s pleasure at JDH’s willingness to help Scott find a position in India.
Naudin underrates contamination of his experiments by insects. Thus CD doubts Naudin’s results on rapidity and universality of reversion in hybrids.
Wallace’s paper on man [see 4494] reflects his genius, although CD does not fully agree with it.
Author: | Charles Robert Darwin |
Addressee: | Joseph Dalton Hooker |
Date: | 22 [May 1864] |
Classmark: | DAR 115: 236 |
Letter no: | DCP-LETT-4506 |
Matches: 9 hits
- … Naturelles ( Botanique ) 4th ser. 9: 257–78. Naudin, Charles Victor. 1862. Cucurbitacées …
- … cultivées au Muséum d’Histoire Naturelle en 1862. Description d’espèces nouvelles et de …
- … to Naudin 1863 , and possibly to Naudin 1862 ; annotated copies of both are in the Darwin …
- … that he may already have read Naudin 1862 . For CD’s reading of earlier papers by Charles …
- … vol. 10, letter from C. V. Naudin, 26 June 1862 and n. 3, and letter to J. …
- … D. Hooker, 30 [June 1862] and n. 11. …
- … reading of Naudin 1859a and possibly Naudin 1862 , see Correspondence vol. 11, letter to …
- … In his letter to Asa Gray of 1 July [1862] ( Correspondence vol. 10), CD also expressed …
- … 10, letter to J. D. Hooker, 30 [June 1862] and n. 11). For comments of CD’s regarding …
To J. D. Hooker [1 April 1864]
Summary
Proposes to support John Scott in research on relative fertility and self-incompatibility of plants. CD would pay him for a year or two but wants JDH to give him research facilities at Kew.
Author: | Charles Robert Darwin |
Addressee: | Joseph Dalton Hooker |
Date: | [1 Apr 1864] |
Classmark: | DAR 115: 226a–b |
Letter no: | DCP-LETT-4444 |
Matches: 4 hits
- … 10, letter from John Scott, 11 November 1862 ); since then Scott had been corresponding …
- … vol. 10, letter to John Scott, 19 December [1862] , and Correspondence vol. 11). CD had …
- … of different varieties of pelargonium in May 1862, with the object of discovering whether …
- … vol. 10, letter to John Scott, 19 December [1862] ). Scott mentioned his work on peloric …
To J. D. Hooker 22 October [1864]
Summary
To Lyell’s chagrin, CD has come round again to A. C. Ramsay’s glacial theory.
On primrose and cowslip, CD maintains they are good species, notwithstanding Scott’s work.
CD defines species by power of remaining constant for a good long time and showing appreciable amount of difference from close species.
Author: | Charles Robert Darwin |
Addressee: | Joseph Dalton Hooker |
Date: | 22 Oct [1864] |
Classmark: | DAR 115: 252 |
Letter no: | DCP-LETT-4642 |
Matches: 4 hits
- … origin of mountain rock-basins ( Ramsay 1862 ). See also letter from J. D. Hooker, 16 …
- … see Correspondence vol. 10, letter to A. C. Ramsay, 5 September [1862] , and letter to …
- … Charles Lyell, 14 October [1862] , and this volume, letter to A. C. Ramsay, 12 July [ …
- … to Ramsay’s glacial-erosion theory ( Ramsay 1862 ) was reiterated in the sixth edition of …
To J. D. Hooker 13 April [1864]
Summary
CD has told Scott not to hope for help from JDH.
Health improving.
Hopes to write Lythrum paper soon.
Author: | Charles Robert Darwin |
Addressee: | Joseph Dalton Hooker |
Date: | 13 Apr [1864] |
Classmark: | DAR 115: 229 |
Letter no: | DCP-LETT-4461 |
To J. D. Hooker [27 January 1864]
Summary
CD continues very ill.
His only work is a little on tendrils and climbers. Asks whether all tendrils are modified leaves or whether some are modified stems.
Last number [Jan 1864?] of Natural History Review is best that has appeared.
Author: | Charles Robert Darwin |
Addressee: | Joseph Dalton Hooker |
Date: | [27 Jan 1864] |
Classmark: | DAR 115: 218 |
Letter no: | DCP-LETT-4398 |
To J. D. Hooker 10 December [1864]
Summary
Has found incipient stages of adhesive discs in Hanburia tendrils.
Huxley was probably right to have challenged Sabine, but the poor old man is sick.
CD remembers the old Disraeli novel [Tancred (1847)] that sneers at transmutation.
Author: | Charles Robert Darwin |
Addressee: | Joseph Dalton Hooker |
Date: | 10 Dec [1864] |
Classmark: | DAR 115: 256 |
Letter no: | DCP-LETT-4712 |
To J. D. Hooker 10 June [1864]
Summary
CD has proved common oxlip to be a hybrid of cowslip and primrose.
Reviewing literature on climbing plants, CD finds he has much new material.
W. H. Harvey claims evidence of saltation in a dandelion.
Author: | Charles Robert Darwin |
Addressee: | Joseph Dalton Hooker |
Date: | 10 June [1864] |
Classmark: | DAR 115: 238a–c |
Letter no: | DCP-LETT-4525 |
To J. D. Hooker 25 April [1864]
Summary
CD thinks JDH takes a hard view of Scott’s character, but will not argue further.
Leersia.
Working on homomorphic and heteromorphic crosses in Primula.
Author: | Charles Robert Darwin |
Addressee: | Joseph Dalton Hooker |
Date: | 25 Apr [1864] |
Classmark: | DAR 115: 231 |
Letter no: | DCP-LETT-4471 |
To J. D. Hooker [20–]22 February [1864]
Summary
Does not know Scott’s qualifications to be curator at Kew.
Frankland’s theory of glaciers is absurd.
Has JDH heard claim that plants in Northern and Southern Hemispheres turn in opposite directions?
Are there plant families with no twining and climbing plants?
Author: | Charles Robert Darwin |
Addressee: | Joseph Dalton Hooker |
Date: | [20–]22 Feb [1864] |
Classmark: | DAR 115: 221a–c |
Letter no: | DCP-LETT-4412 |
To J. D. Hooker [10 and 12 January 1864]
Summary
CD very ill.
Suspects F. Boott’s widow is illegitimate granddaughter of Erasmus Darwin.
CD, like JDH, has speculated that agrarian weeds have become adapted to cultivated ground. Suggests comparison with country of origin.
Wallace’s praise of Herbert Spencer’s Social statics baffles CD.
[Letter completed by E. A. Darwin.]
Author: | Charles Robert Darwin |
Addressee: | Joseph Dalton Hooker |
Date: | 10 and 12 Jan 1864 |
Classmark: | DAR 115: 216 |
Letter no: | DCP-LETT-4389 |
To J. D. Hooker 26 November [1864]
Summary
CD’s Lythrum paper has given him as much satisfaction as working out complemental males in cirripedes.
Response to award of Copley Medal.
Letters from Germany and France support natural selection.
Now that climbing plants are done, CD asks for Drosera.
Author: | Charles Robert Darwin |
Addressee: | Joseph Dalton Hooker |
Date: | 26 Nov [1864] |
Classmark: | DAR 115: 254a–c |
Letter no: | DCP-LETT-4682 |
To J. D. Hooker 26[–7] March [1864]
Summary
John Scott has left Edinburgh Botanic Garden.
Asks JDH to ask Tyndall whether Frankland exaggerates the effect of snowfall on advance of European glaciers.
Huxley and Falconer squabble too much in public.
Author: | Charles Robert Darwin |
Addressee: | Joseph Dalton Hooker |
Date: | 26[–7] Mar [1864] |
Classmark: | DAR 115: 225 |
Letter no: | DCP-LETT-4436 |
To J. D. Hooker 5 April [1864]
Summary
Sees difficulty of placing Scott at Kew. Suspects Balfour is prejudiced because Scott is a Darwinian.
CD’s former letter on Clematis [4403] blundered; work now being revised.
Author: | Charles Robert Darwin |
Addressee: | Joseph Dalton Hooker |
Date: | 5 Apr [1864] |
Classmark: | DAR 115: 227a–c |
Letter no: | DCP-LETT-4450 |
To J. D. Hooker 7 April [1864]
Summary
CD apologises for having asked JDH to help him with Scott and now seeks advice on how to break the news.
Author: | Charles Robert Darwin |
Addressee: | Joseph Dalton Hooker |
Date: | 7 Apr [1864] |
Classmark: | DAR 115: 228 |
Letter no: | DCP-LETT-4455 |
Matches: 1 hit
- … Scott’s botanical research since November 1862 (see Correspondence vols. 10 and 11, and …
To J. D. Hooker 13 June [1864]
Summary
W. H. Harvey’s dandelion case worth publishing.
Suspects the uniform Primula elatior JDH referred to is a distinct species.
Scott’s paper on Passiflora shows variability of reproductive systems.
Author: | Charles Robert Darwin |
Addressee: | Joseph Dalton Hooker |
Date: | 13 June [1864] |
Classmark: | DAR 115: 239 |
Letter no: | DCP-LETT-4531 |
Matches: 1 hit
- … au Muséum d’histoire naturelle de 1853 à 1862 inclusivement. Comptes rendus hebdomadaires …
To J. D. Hooker [1 September 1864]
Summary
CD continues to have trouble reconciling the Veitch’s names for Bignonia plants and Kew names.
Lyell and Falconer called on CD in London.
Author: | Charles Robert Darwin |
Addressee: | Joseph Dalton Hooker |
Date: | [1 Sept 1864] |
Classmark: | DAR 115: 248 |
Letter no: | DCP-LETT-4605 |
Matches: 1 hit
- … human and animal remains recovered since 1862 and examined by Busk and Falconer (see …
To J. D. Hooker [15 May 1864]
Summary
CD finishing Lythrum paper [Collected papers 2: 106–31].
Pleased at Bates’s appointment
and Wallace’s paper.
Author: | Charles Robert Darwin |
Addressee: | Joseph Dalton Hooker |
Date: | [15 May 1864] |
Classmark: | DAR 115: 233 |
Letter no: | DCP-LETT-4496 |
Matches: 1 hit
- … his contribution to Bentham and Hooker 1862 –83 in his letter of [26 or 27 April 1864] ; …
From Richard Spruce to J. D. Hooker 29 July 1864
Summary
Gives an extract from his notes on Marcgravia umbellata, an epiphyte that might be the plant that Bates refers to as matador.
Author: | Richard Spruce |
Addressee: | Joseph Dalton Hooker |
Date: | 29 July 1864 |
Classmark: | DAR 157.2: 111 |
Letter no: | DCP-LETT-4577 |
Matches: 1 hit
- … 10, letter to H. W. Bates, 13 January 1862 ). CD had asked Joseph Dalton Hooker about …
To J. D. Hooker 3 November [1864]
Summary
Asks JDH to verify an observation on Dicentra – what CD thought was a branch in the young plant now looks like a gigantic leaf in the old.
Concurs on Spencer’s clever emptiness.
Ramsay exaggerates role of ice. Sorry to hear that Tyndall grows dogmatic.
Admits difficulty of making case for Wallace’s Royal Medal at this time.
Will soon finish the first draft of Variation.
Author: | Charles Robert Darwin |
Addressee: | Joseph Dalton Hooker |
Date: | 3 Nov [1864] |
Classmark: | DAR 115: 253 |
Letter no: | DCP-LETT-4650 |
Matches: 1 hit
- … By Charles Darwin. London: John Murray. 1862. Post Office London directory : Post-Office …
To J. D. Hooker 23 September [1864]
Summary
Pleased with news of BAAS meeting
and Scott’s possible position as Thomas Anderson’s curator.
Suggests Wallace is due for a Royal Medal.
Agrees with JDH’s criticism of Lyell’s address [see 4614].
Bentham’s Linnean Society address treats continuity of life in a vague non-natural sense.
Rereading his old MS [Natural selection] CD is impressed with work he had already done.
Writing Variation much harder than Climbing plants.
Encloses request to JDH to propose, or suggest on his behalf, that the Ray Society publish a translation of C. F. von Gärtner’s Versuche und Beobachtungen über die Bastarderzeugung im Pflanzenreich (1849).
Author: | Charles Robert Darwin |
Addressee: | Joseph Dalton Hooker |
Date: | 23 Sept [1864] |
Classmark: | DAR 96: 14; DAR 115: 250a–c |
Letter no: | DCP-LETT-4621 |
Matches: 1 hit
- … letter to A. C. Ramsay, 5 September [1862] , and this volume, letter to J. D. Hooker, …
letter | (21) |
Darwin, C. R. | (20) |
Spruce, Richard | (1) |
Hooker, J. D. | (21) |
Darwin, C. R. | (20) |
Spruce, Richard | (1) |
Darwin in letters, 1862: A multiplicity of experiments
Summary
1862 was a particularly productive year for Darwin. This was not only the case in his published output (two botanical papers and a book on the pollination mechanisms of orchids), but more particularly in the extent and breadth of the botanical experiments…
Matches: 28 hits
- … As the sheer volume of his correspondence indicates, 1862 was a particularly productive year for …
- … be so’ ( letter from J. D. Hooker, [15 and] 20 November [1862] ). I have not the least …
- … him from this view ( letter to T. H. Huxley, 14 [January 1862] ): 'no doubt you are right …
- … Huxley replied ( letter from T. H. Huxley, 20 January 1862 ): 'I entertain no doubt that …
- … but continued ( letter to T. H. Huxley, 18 December [1862] ): 'you say the answer to …
- … but complained ( letter to T. H. Huxley, 28 December [1862] ): 'To get the degree of …
- … him the commission ( see letter to John Scott, 11 December [1862] ). Darwin was altogether taken …
- … is no common man’ ( letter to J. D. Hooker, 12 [December 1862] ). Two sexual forms: …
- … with his study of Primula and escalated throughout 1862 as he searched for other cases of …
- … 1861, and was published in the society’s journal in March 1862. The paper described the two …
- … in almost daily’ ( letter to Asa Gray, 22 January [1862] ). In a postscript, he mentioned his work …
- … telling Hooker ( letter to J. D. Hooker, 7 March [1862] ): ‘I am nearly sure that daylight is …
- … great’, he told Gray ( letter to Asa Gray, 10–20 June [1862] ), ‘I have lately counted one by one …
- … labour over them’ ( letter to J. D. Hooker, 14 [October 1862] ; see ML 2: 292–3). Other …
- … of dimorphism’ ( letter to Daniel Oliver, 12 [April 1862] ), and experimenting to test his …
- … sets of experiments’ ( letter to M. T. Masters, 24 July [1862] ). The materials that Darwin …
- … case he determined to experiment on Linum in 1862. Soon he was enthralled, especially by the …
- … be generically distinct’ ( letter to Asa Gray, 14 July [1862] ). The case was so good that he …
- … Linum ‘at once’ ( letter to John Scott, 11 December [1862] ), writing up his experiments in …
- … complex case—’ ( letter to Daniel Oliver, 29 [July 1862] ). The three forms had different lengths …
- … who exclaimed to Gray ( letter to Asa Gray, 9 August [1862] ), ‘I am almost stark staring mad over …
- … the Linnean Society ( letter to J. D. Hooker, 6 October [1862] ). However, it was not until 1864 …
- … pleasure to ride’ ( letter to Asa Gray, 22 January [1862] ). But he worried about the resulting …
- … the Book will sell’ ( letter to John Murray, 9 [February 1862] ). To his son, William, his …
- … every flower’ ( letter to Daniel Oliver, 8 June [1862] ). I never before felt half so …
- … he told Hooker ( letter to J. D. Hooker, 15 [May 1862] ). But he did not have long to wait. ‘It is …
- … it ‘most valuable’ (letter from George Bentham, 15 May 1862). Orchids was published on 15 May, …
- … all, ‘a success’ ( letter to J. D. Hooker, 30 [June 1862] ). a flank-movement on the …
Origin: the lost changes for the second German edition
Summary
Darwin sent a list of changes made uniquely to the second German edition of Origin to its translator, Heinrich Georg Bronn. That lost list is recreated here.
Matches: 5 hits
- … In March 1862, Heinrich Georg Bronn wrote to Darwin stating his intention to prepare a …
- … edition (see letter from H. G. Bronn, [before 11 March 1862] ). Since the publication of the …
- … of importance’ (see letter to H. G. Bronn, 11 March [1862] ). Darwin had sent Bronn some of these …
- … in the new edition; in his letter to Bronn of 25 April [1862 ], he mentioned that he was sending …
- … from E. Schweizerbart’sche Verlagsbuchhandlung, 11 July 1862 ). (No American edition incorporating …
Dramatisation script
Summary
Re: Design – Adaptation of the Correspondence of Charles Darwin, Asa Gray and others… by Craig Baxter – as performed 25 March 2007
Matches: 8 hits
- … in the mud. BEGINNING OF WAR IN AMERICA: 1861-1862 In which the start of the American …
- … cause. Tension. THE DARWIN BOYS: 1862 In which Darwin reports one …
- … 1856 33 C DARWIN TO JD HOOKER, 14 MARCH 1862 34 JD HOOKER TO C DARWIN, …
- … 1861 115 A GRAY TO CHARLES WRIGHT, 17 APRIL 1862 116 A GRAY TO RW CHURCH 7 MAY …
- … 10 JUNE 1861 121 A GRAY TO C DARWIN, 31 MARCH 1862 122 JD HOOKER TO C …
- … 16 DEC 1861 124 A GRAY TO ENGELMANN, 20 FEB 1862 125 A GRAY TO C DARWIN, 31 …
- … 7 JULY 1863 152 C DARWIN TO JD HOOKER, DECEMBER 1862 153 JD HOOKER TO C …
- … 1861 163 C Darwin TO A Gray, 16 OCTOBER 1862 164 C Darwin TO ASA GRAY, …
Darwin’s hothouse and lists of hothouse plants
Summary
Darwin became increasingly involved in botanical experiments in the years after the publication of Origin. The building of a small hothouse - a heated greenhouse - early in 1863 greatly increased the range of plants that he could keep for scientific…
Matches: 6 hits
- … Towards the end of 1862, Darwin resolved to build a small hothouse at Down House, for …
- … vol. 10, letter to J. D. Hooker, 24 December [1862] , and volume 10, letter to Thomas Rivers, …
- … a construction suitable for tropical plants. In 1861 and 1862, while preparing Orchids , he was …
- … vol. 10, letter to J. D. Hooker, 12 [December 1862] and n. 13). Initially, Darwin purchased for …
- … over the previous two years. In a letter of 24 December [1862] ( Correspondence vol. 10) …
- … Kent ( Post Office directory of the six home counties 1862). 3. Asclepias curassavica. …
I beg a million pardons: To John Lubbock, [3 September 1862]
Summary
Alison Pearn looks at a letter Darwin wrote to his neighbour and friend, John Lubbock, after making a mistake in his research on bees in 1862.
Matches: 1 hits
- … Lubbock, after making a mistake in his research on bees in 1862. …
Evolution: Selected Letters of Charles Darwin 1860-1870
Summary
This selection of Charles Darwin’s letters includes correspondence with his friends and scientific colleagues around the world; letters by the critics who tried to stamp out his ideas, and by admirers who helped them to spread. It takes up the story of…
Clémence Auguste Royer
Summary
Getting Origin translated into French was harder than Darwin had expected. The first translator he approached, Madame Belloc, turned him down on the grounds that the content was ‘too scientific‘, and then in 1860 the French political exile Pierre…
Women’s scientific participation
Summary
Observers | Fieldwork | Experimentation | Editors and critics | Assistants Darwin’s correspondence helps bring to light a community of women who participated, often actively and routinely, in the nineteenth-century scientific community. Here is a…
Matches: 5 hits
- … Letter 3787 - Darwin, H. E. to Darwin, [29 October 1862] Henrietta Darwin provides …
- … Letter 3634 - Darwin to Gray, A., [1 July 1862] Darwin tells American naturalist Asa …
- … 3681 - Wedgwood, M. S. to Darwin, [before 4 August 1862] Darwin’s niece, Margaret, …
- … lady”. Darwin, E. to Darwin, W. E. , (March, 1862 - DAR 219.1:49) Emma Darwin …
- … - Darwin to Wedgwood, K. E. S, M. S. & L. C., [4 August 1862] Darwin thanks his “angel …
Floral Dimorphism
Summary
Sources|Discussion Questions|Experiment Floral studies In 1877 Darwin published a book that included a series of smaller studies on botanical subjects. Titled The different forms of flowers on plants of the same species, it consisted primarily of…
Darwin & Glen Roy
Summary
Although Darwin was best known for his geological work in South America and other remote Beagle destinations, he made one noteworthy attempt to explain a puzzling feature of British geology. In 1838, two years after returning from the voyage, he travelled…
Matches: 1 hits
- … 1 October [1861] To Charles Lyell, 1 April [1862] To Charles Lyell, 14 October …
Have you read the one about....
Summary
... the atheistical cats, or the old fogies in Cambridge? We've suggested a few - some funny, some serious - but all letters you can read here.
Matches: 1 hits
- … ... the atheistical cats, or the old fogies in Cambridge? We've suggested a few - some funny, some …
Orchids
Summary
Sources|Discussion Questions|Experiment A project to follow On the Origin of Species Darwin began to observe English orchids and collect specimens from abroad in the years immediately following the publication of On the Origin of Species. Examining…
Matches: 4 hits
- … SOURCES Books Darwin, Charles 1862. On the various contrivances by which …
- … 3421 —Charles Darwin to Joseph Dalton Hooker 30 January 1862 Darwin tells Hooker about a …
- … Letter 3662 —Charles Darwin to Asa Gray 23-4 July 1862 Darwin tells Asa Gray, a professor …
- … Darwin’s work with orchids and Chapter 1 of Darwin’s 1862 book On the various …
Forms of flowers
Summary
Darwin’s book The different forms of flowers on plants of the same species, published in 1877, investigated the structural differences in the sexual organs of flowers of the same species. It drew on and expanded five articles Darwin had published on the…
Matches: 6 hits
- … briefly mentioned in his Primula paper. In July 1862, Darwin explained to Gray, ‘ I have …
- … of the genus Linum ’, between 11 and 21 December 1862. The paper was read at a meeting of the …
- … to Lythrum , a genus that he had begun researching in 1862 after Hooker had supplied him with …
- … of Lythrum he had been working on since late July 1862. He told Oliver that, ‘ as each form has …
- … of the crossing experiments immediately, but by October 1862, he admitted to Hooker, ‘ I am rather …
- … 117: 50). Darwin released William from counting in November 1862, telling him, ‘ Next year I shall …
Dining at Down House
Summary
Sources|Discussion Questions|Experiment Dining, Digestion, and Darwin's Domestic Life While Darwin is best remembered for his scientific accomplishments, he greatly valued and was strongly influenced by his domestic life. Darwin's…
Darwin in letters, 1865: Delays and disappointments
Summary
The year was marked by three deaths of personal significance to Darwin: Hugh Falconer, a friend and supporter; Robert FitzRoy, captain of the Beagle; and William Jackson Hooker, director of the Royal Botanic Gardens, Kew, and father of Darwin’s friend…
Matches: 4 hits
- … on Verbascum. Darwin had suggested to Scott in 1862, when Scott was working at the Royal Botanic …
- … vol. 10, letter to John Scott, 19 November [1862] ). Darwin had already written to Hooker of …
- … disturbing the serenity of the Christian world’ (Brewster 1862, p. 3). John Hutton Balfour, though …
- … vol. 10, letter from J. H. Balfour, 14 January 1862 ). According to Hooker, Balfour’s prejudice …
Darwin on race and gender
Summary
Darwin’s views on race and gender are intertwined, and mingled also with those of class. In Descent of man, he tried to explain the origin of human races, and many of the differences between the sexes, with a single theory: sexual selection. Sexual…
Matches: 1 hits
- … [1859] Letter to Charles Kingsley, 6 February [1862] Letter from F. W. Farrar, …
Darwin and Fatherhood
Summary
Charles Darwin married Emma Wedgwood in 1839 and over the next seventeen years the couple had ten children. It is often assumed that Darwin was an exceptional Victorian father. But how extraordinary was he? The Correspondence Project allows an unusually…
Species and varieties
Summary
On the origin of species by means of natural selection …so begins the title of Darwin’s most famous book, and the reader would rightly assume that such a thing as ‘species’ must therefore exist and be subject to description. But the title continues, …or…
Women as a scientific audience
Summary
Target audience? | Female readership | Reading Variation Darwin's letters, in particular those exchanged with his editors and publisher, reveal a lot about his intended audience. Regardless of whether or not women were deliberately targeted as a…
Matches: 1 hits
- … lady”. Darwin, E. to Darwin, W. E. , (March 1862 - DAR 219.1:49) Emma Darwin …
Sexual selection
Summary
Although natural selection could explain the differences between species, Darwin realised that (other than in the reproductive organs themselves) it could not explain the often marked differences between the males and females of the same species. So what…
Matches: 1 hits
- … the Lords' ( to J. D. Hooker, 25 [and 26] January [1862] ) In 1869, Darwin …