Книга: Darwin Charles «Jeologia De La America Meridional (Spanish Edition)»
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Darwin, Charles
▪ British naturalist
Introduction
in full Charles Robert Darwin
born February 12, 1809, Shrewsbury, Shropshire, England
died April 19, 1882, Downe, Kent
English naturalist whose theory of evolution by natural selection became the foundation of modern evolutionary studies. An affable country gentleman, Darwin at first shocked religious Victorian society by suggesting that animals and humans shared a common ancestry. However, his nonreligious biology appealed to the rising class of professional scientists, and by the time of his death evolutionary imagery had spread through all of science, literature, and politics. Darwin, himself an agnostic, was accorded the ultimate British accolade of burial in Westminster Abbey, London.
Darwin formulated his bold theory in private in 1837–39, after returning from a voyage around the world aboard Beagle, but it was not until two decades later that he finally gave it full public expression in On the Origin of Species (1859), a book that has deeply influenced modern Western society and thought.
Early life and education
Darwin was the second son of society doctor Robert Waring Darwin and of Susannah Wedgwood, daughter of the Unitarian pottery industrialist Josiah Wedgwood (Wedgwood, Josiah). Darwin's other grandfather, Erasmus Darwin (Darwin, Erasmus), a freethinking physician and poet fashionable before the French Revolution, was author of Zoonomia or the Laws of Organic Life (1794–96). Darwin's mother died when he was eight, and he was cared for by his three elder sisters. The boy stood in awe of his overbearing father, whose astute medical observations taught him much about human psychology. But he hated the rote learning of Classics at the traditional Anglican Shrewsbury School, where he studied between 1818 and 1825. Science was then considered dehumanizing in English public schools, and for dabbling in chemistry Darwin was condemned by his headmaster (and nicknamed “Gas” by his schoolmates).
His father, considering the 16-year-old a wastrel interested only in game shooting, sent him to study medicine at Edinburgh University (Edinburgh, University of) in 1825. Later in life, Darwin gave the impression that he had learned little during his two years at Edinburgh. In fact, it was a formative experience. There was no better science education in a British university. He was taught to understand the chemistry of cooling rocks on the primitive Earth and how to classify plants by the modern “natural system.” In Edinburgh Museum he was taught to stuff birds by a freed South American slave and to identify the rock strata and colonial flora and fauna.
More crucially, the university's radical students exposed the teenager to the latest Continental sciences. Edinburgh attracted English Dissenters who were barred from graduating at the Anglican universities of Oxford and Cambridge, and at student societies Darwin heard freethinkers deny the Divine design of human facial anatomy and argue that animals shared all the human mental faculties. One talk, on the mind as the product of a material brain, was officially censored, for such materialism was considered subversive in the conservative decades after the French Revolution. Darwin was witnessing the social penalties of holding deviant views. As he collected sea slugs and sea pens on nearby shores, he was accompanied by Robert Edmond Grant, a radical evolutionist and disciple of the French biologist Jean-Baptiste Lamarck (Lamarck, Jean-Baptiste). An expert on sponges (sponge), Grant became Darwin's mentor, teaching him about the growth and relationships of primitive marine invertebrates, which Grant believed held the key to unlocking the mysteries surrounding the origin of more complex creatures. Darwin, encouraged to tackle the larger questions of life through a study of invertebrate zoology, made his own observations on the larval sea mat (Flustra) and announced his findings at the student societies.
The young Darwin learned much in Edinburgh's rich intellectual environment, but not medicine: he loathed anatomy, and (pre-chloroform) surgery sickened him. His freethinking father, shrewdly realizing that the church was a better calling for an aimless naturalist, switched him to Christ's College, Cambridge (Cambridge, University of), in 1828. In a complete change of environment, Darwin was now educated as an Anglican gentleman. He took his horse, indulged his drinking, shooting, and beetle-collecting passions with other squires' sons, and managed 10th place in the Bachelor of Arts degree in 1831. Here he was shown the conservative side of botany by a young professor, the Reverend John Stevens Henslow (Henslow, John Stevens), while that doyen of Providential design in the animal world, the Reverend Adam Sedgwick (Sedgwick, Adam), took Darwin to Wales in 1831 on a geologic field trip.
Fired by Alexander von Humboldt (Humboldt, Alexander von)'s account of the South American jungles in his Personal Narrative of Travels, Darwin jumped at Henslow's suggestion of a voyage to Tierra del Fuego, at the southern tip of South America, aboard a rebuilt brig, HMS Beagle. Darwin would not sail as a lowly surgeon-naturalist but as a self-financed gentleman companion to the 26-year-old captain, Robert Fitzroy (Fitzroy, Robert), an aristocrat who feared the loneliness of command. Fitzroy's was to be an imperial-evangelical voyage: he planned to survey coastal Patagonia to facilitate British trade and return three “savages” previously brought to England from Tierra del Fuego and Christianized. Darwin equipped himself with weapons, books (Fitzroy gave him the first volume of Principles of Geology, by Charles Lyell (Lyell, Sir Charles, Baronet)), and advice on preserving carcasses from London Zoo's experts. The Beagle sailed from England on December 27, 1831.
The Beagle voyage
The circumnavigation of the globe would be the making of the 22-year-old Darwin. Five years of physical hardship and mental rigour, imprisoned within a ship's walls, offset by wide-open opportunities in the Brazilian jungles and the Andes Mountains, were to give Darwin a new seriousness. As a gentleman naturalist, he could leave the ship for extended periods, pursuing his own interests. As a result, he spent only 18 months of the voyage aboard the ship.
The hardship was immediate: a tormenting seasickness. And so was his questioning: on calm days Darwin's plankton-filled townet left him wondering why beautiful creatures teemed in the ocean's vastness, where no human could appreciate them. On the Cape Verde Islands (Cape Verde) (January 1832), the sailor saw bands of oyster shells running through local rocks, suggesting that Lyell was right in his geologic speculations and that the land was rising in places, falling in others. At Bahia (now Salvador), Brazil, the luxuriance of the rainforest left Darwin's mind in “a chaos of delight.” But that mind, with its Wedgwood-abolitionist characteristics, was revolted by the local slavery. For Darwin, so often alone, the tropical forests (tropical rainforest) seemed to compensate for human evils: months were spent in Rio de Janeiro amid this shimmering tropical splendour, full of “gaily-coloured” flatworms, and the collector himself became “red-hot with Spiders.” But nature had its own evils, and Darwin always remembered with a shudder the parasitic ichneumon wasp, which stored caterpillars to be eaten alive by its grubs. He would later consider this evidence against the beneficent design of nature.
On the River Plate (Río de la Plata (Plata, Río de la)) in July 1832, he found Montevideo, Uruguay, in a state of rebellion and joined armed sailors to retake the rebel-held fort. At Bahía Blanca, Argentina, gauchos (gaucho) told him of their extermination of the Pampas (Pampas, the) “Indians.” Beneath the veneer of human civility, genocide seemed the rule on the frontier, a conclusion reinforced by Darwin's meeting with General Juan Manuel de Rosas (Rosas, Juan Manuel de) and his “villainous Banditti-like army,” in charge of eradicating the natives. For a sensitive young man, fresh from Christ's College, this was disturbing. His contact with “untamed” humans on Tierra del Fuego in December 1832 unsettled him more. How great, wrote Darwin, the “difference between savage & civilized man is.—It is greater than between a wild & [a] domesticated animal.” God had evidently created humans in a vast cultural range, and yet, judging by the Christianized savages aboard, even the “lowest” races were capable of improvement. Darwin was tantalized, and always he niggled for explanations.
His fossil discoveries raised more questions. Darwin's periodic trips over two years to the cliffs at Bahía Blanca and farther south at Port St. Julian yielded huge bones of extinct mammals. Darwin manhandled skulls, femurs, and armour plates back to the ship—relics, he assumed, of rhinoceroses, mastodons, cow-sized armadillos, and giant ground sloths (see the engraving of the Megatherium skeleton). He unearthed a horse-sized mammal with a long face like an anteater's, and he returned from a 340-mile (550-km) ride to Mercedes near the Uruguay River with a skull 28 inches (71 cm) long strapped to his horse. Fossil extraction became a romance for Darwin. It pushed him into thinking of the primeval world and what had caused these giant beasts to die out.
The land was evidently changing, rising; Darwin's observations in the Andes Mountains confirmed it. After the Beagle surveyed the Falkland Islands, and after Darwin had packed away at Port Desire (Puerto Deseado), Argentina, the partially gnawed bones of a new species of small rhea, the ship sailed up the west coast of South America to Valparaíso, Chile. Here Darwin climbed 4,000 feet (1,200 metres) into the Andean foothills and marveled at the forces that could raise such mountains. The forces themselves became tangible when he saw volcanic (volcanism) Mount Osorno erupt on January 15, 1835. Then in Valdivia, Chile, on February 20, as he lay on a forest floor, the ground shook: the violence of the earthquake and ensuing tidal wave was enough to destroy the great city of Concepción, whose rubble Darwin walked through. But what intrigued him was the seemingly insignificant: the local mussel beds, all dead, were now lying above high tide. The land had risen: Lyell (Lyell, Sir Charles, Baronet), taking the uniformitarian (uniformitarianism) position, had argued that geologic formations were the result of steady cumulative forces of the sort we see today. And Darwin had seen them (see his own sketch—>). The continent was thrusting itself up, a few feet at a time. He imagined the eons it had taken to raise the fossilized trees in sandstone (once seashore mud) to 7,000 feet (2,100 metres), where he found them. Darwin began thinking in terms of deep time.
They left Peru on the circumnavigation home in September 1835. First Darwin landed on the “frying hot” Galapagos Islands. These were volcanic prison islands, crawling with marine iguanas (iguana) and giant tortoises (tortoise). (Darwin and the crew brought small tortoises aboard as pets, to join their coatis (coati) from Peru.) Contrary to legend, these islands never provided Darwin's “eureka” moment. Although he noted that the mockingbirds differed on four islands and tagged his specimens accordingly, he failed to label his other birds—what he thought were wrens, “gross-beaks,” finches, and oriole-relatives—by island. Nor did Darwin collect tortoise specimens, even though local prisoners believed that each island had its distinct race.
The “home-sick heroes” returned via Tahiti, New Zealand, and Australia. By April 1836, when the Beagle made the Cocos (Keeling) Islands (Cocos Islands) in the Indian Ocean—Fitzroy's brief being to see if coral reefs (coral reef) sat on mountain tops—Darwin already had his theory of reef formation. He imagined (correctly) that these reefs grew on sinking mountain rims. The delicate coral built up, compensating for the drowning land, so as to remain within optimal heat and lighting conditions. At the Cape of Good Hope (Good Hope, Cape of), Darwin talked with the astronomer Sir John Herschel (Herschel, Sir John, 1st Baronet), possibly about Lyell's gradual geologic evolution and perhaps about how it entailed a new problem, the “mystery of mysteries,” the simultaneous change of fossil life.
On the last leg of the voyage Darwin finished his 770-page diary, wrapped up 1,750 pages of notes, drew up 12 catalogs of his 5,436 skins, bones, and carcasses—and still he wondered: Was each Galapagos mockingbird a naturally produced variety? Why did ground sloths become extinct? He sailed home with problems enough to last him a lifetime. When he landed in October 1836, the vicarage had faded, the gun had given way to the notebook, and the supreme theorizer—who would always move from small causes to big outcomes—had the courage to look beyond the conventions of his own Victorian culture for new answers.
evolution by natural selection: the London years, 1836–42
With his voyage over and with a £400 annual allowance from his father, Darwin now settled down among the urban gentry as a gentleman geologist. He befriended Lyell, and he discussed the rising Chilean coastline as a new fellow of the Geological Society in January 1837 (he was secretary of the society by 1838). Darwin became well known through his diary's publication as Journal of Researches into the Geology and Natural History of the Various Countries Visited by H.M.S. Beagle (1839). With a £1,000 Treasury grant, obtained through the Cambridge network, he employed the best experts and published their descriptions of his specimens in his Zoology of the Voyage of H.M.S. Beagle (1838–43). Darwin's star had risen, and he was now lionized in London.
It was in these years of civil unrest following the First Reform Act (Reform Bill) (1832) that Darwin devised his theory of evolution. Radical Dissenters were denouncing the church's monopoly on power—attacking an Anglican (England, Church of) status quo that rested on miraculous props: the supposed supernatural creation of life and society. Darwin had Unitarian (Unitarianism and Universalism) roots, and his breathless notes show how his radical Dissenting understanding of equality and antislavery framed his image of mankind (human being)'s place in nature: “Animals—whom we have made our slaves we do not like to consider our equals.—Do not slave holders wish to make the black man other kind?” Some radicals questioned whether each animal was uniquely “designed” by God when all vertebrates shared a similar structural plan. The polymathic Charles Babbage (Babbage, Charles)—of calculating machine fame—made God a divine programmer, preordaining life by means of natural law rather than ad hoc miracle. It was the ultra-Whig way, and in 1837 Darwin, an impeccable Whig reformer who enjoyed Babbage's soirees, likewise accepted that “the Creator creates by…laws.”
The experts' findings sent Darwin to more heretical depths. At the Royal College of Surgeons, the eminent anatomist Richard Owen (Owen, Sir Richard) found that Darwin's Uruguay River skull belonged to Toxodon, a hippotamus-sized antecedent of the South American capybara. The Pampas fossils were nothing like rhinoceroses and mastodons; they were huge extinct armadillos, anteaters, and sloths, which suggested that South American mammals had been replaced by their own kind according to some unknown “law of succession.” At the Zoological Society, ornithologist John Gould (Gould, John) announced that the Galapagos birds were not a mixture of wrens, finches, and “gross-beaks” but were all ground finches, differently adapted. When Gould diagnosed the Galapagos mockingbirds as three species, unique to different islands, in March 1837, Darwin examined Fitzroy's collection to discover that each island had its representative finch as well. But how had they all diverged from mainland colonists? By this time Darwin was living near his freethinking brother, Erasmus, in London's West End, and their dissident dining circle, which included the Unitarian Harriet Martineau, (Martineau, Harriet) provided the perfect milieu for Darwin's ruminations. Darwin adopted “transmutation” (evolution, as it is now called), perhaps because of his familiarity with it through the work of his grandfather and Robert Grant. Nonetheless, it was abominated by the Cambridge clerics (Christianity) as a bestial, if not blasphemous, heresy that would corrupt mankind and destroy the spiritual safeguards of the social order. Thus began Darwin's double life, which would last for two decades.
For two years he filled notebooks with jottings. There was an intensity and doggedness to it. He searched for the causes of extinction, accepted life as a branching tree (not a series of escalators, the old idea), tackled island isolation, and wondered whether variations appeared gradually or at a stroke. He dismissed a Lamarckian (Lamarck, Jean-Baptiste) force driving life inexorably upward with the cavalier joke, “If all men were dead then monkeys make men.—Men make angels,” which showed how little the failed ordinand shared his Cambridge mentors' hysteria about an ape ancestry. Indeed, there was no “upward”: he became relativistic, sensing that life was spreading outward into niches, not standing on a ladder. There was no way of ranking humans and bees, no yardstick of “highness”: man was no longer the crown of creation.
Heart palpitations and stomach problems were affecting him by September 1837. Stress sent him to the Highlands of Scotland in 1838, where he diverted himself studying the “parallel roads” of Glen Roy, so like the raised beaches in Chile. But the sickness returned as he continued chipping at the scientific bedrock of a cleric-dominated society. The “whole [miraculous] fabric totters & falls,” he jotted. Darwin had a right to be worried. Were his secret discovered, he would stand accused of social abandon. At Edinburgh he had seen censorship; other materialists were being publicly disgraced. His notes began mooting disarming ploys: “Mention persecution of early astronomers.” Behind his respectable facade at the Geological Society lay a new contempt for the divines' providential shortsightedness. The president, the Reverend William Whewell, “says length of days adapted to duration of sleep of man.!!!” he jotted. What “arrogance!!”
Mankind: there was the crux. Darwin wrote humans and society into the evolutionary equation from the start. He saw the social instincts of troop animals developing into morality and studied the humanlike behaviour of orangutans (orangutan) at the zoo. With avant-garde society radicalized, Darwin moved into his own ultraradical phase in 1838—even suggesting that belief in God was an ingrained tribal survival strategy: “love of [the] deity [is an] effect of [the brain's] organization. Oh you Materialist!” he mocked himself. In a day when a gentleman's character had to be above reproach, Darwin's notes had a furtive ring. None of this could become known—yet. The rich careerist—admitted to the prestigious Athenaeum Club in 1838 and the Royal Society in 1839—had too much to lose.
As a sporting gent from the shires, Darwin queried breeders about the way they changed domestic dogs and fancy pigeons by spotting slight variations and accentuating them through breeding. But he only saw the complete congruity between the way nature operated and the way fanciers produced new breeds upon reading the economist Thomas Malthus (Malthus, Thomas Robert)'s Essay on the Principle of Population in September 1838. This was a seminal moment—even if Malthusian ideas had long permeated his Whig circle. Darwin was living through a workhouse revolution. Malthus had said that there would always be too many mouths to feed— population increases geometrically, whereas food production rises arithmetically—and that charity was useless. So the Whigs had passed a Malthusian Poor Law in 1834 and were incarcerating sick paupers in workhouses (workhouse) (separating men from women to stop them from breeding). Darwin's dining companion Harriet Martineau (whom many expected to marry his brother, Erasmus), was the Whigs' poor law propagandist. (Her novelistic Malthusian pamphlets had been sent to Darwin while he was on the Beagle.) Darwin realized that population explosions would lead to a struggle for resources and that the ensuing competition would weed out the unfit. It was an idea he now applied to nature (he had previously thought that animal populations remained stable in the wild). Darwin called his modified Malthusian mechanism “ natural selection.” Nature was equally uncharitable, went the argument: overpopulated, it experienced a fierce struggle, and from all manner of chance variations, good and bad, the best, “the surviving one of ten thousand trials,” won out, endured, and thus passed on its improved trait. This was the way a species kept pace with the Lyellian evolution of the Earth.
Darwin was a born list maker. In 1838 he even totted up the pros and cons of taking a wife—and married his cousin Emma Wedgwood (1808–96) in 1839. He rashly confided his thoughts on evolution, evidently shocking her. By now, Darwin accepted the notion that even mental traits and instincts were randomly varying, that they were the stuff for selection. But he saw from Emma's reaction that he must publicly camouflage his views. Although the randomness and destructiveness of his evolutionary system—with thousands dying so that the “fittest” might survive—left little room for a personally operating benign deity, Darwin still believed that God was the ultimate lawgiver of the universe. In 1839 he shut his last major evolution notebook, his theory largely complete.
The squire naturalist in Downe
Darwin drafted a 35-page sketch of his theory of natural selection in 1842 and expanded it in 1844, but he had no immediate intention of publishing it. He wrote Emma a letter in 1844 requesting that, if he died, she should pay an editor £400 to publish the work. Perhaps he wanted to die first. In 1842, Darwin, increasingly shunning society, had moved the family to the isolated village of Downe, in Kent, at the “extreme edge of [the] world.” (It was in fact only 16 miles [26 km] from central London.) Here, living in a former parsonage, Down House, he emulated the lifestyle of his clerical friends. Fearing prying eyes, he even lowered the road outside his house. His seclusion was complete: from now on he ran his days like clockwork, with set periods for walking, napping, reading, and nightly backgammon. He fulfilled his parish responsibilities, eventually helping to run the local Coal and Clothing Club for the labourers. His work hours were given over to bees, flowers, and barnacles and to his books on coral reefs and South American geology, three of which in 1842–46 secured his reputation as a career geologist.
He rarely mentioned his secret. When he did, notably to the Kew Gardens botanist Joseph Dalton Hooker (Hooker, Sir Joseph Dalton), Darwin said that believing in evolution was “like confessing a murder.” The analogy with this capital offense was not so strange: seditious atheists were using evolution as part of their weaponry against Anglican oppression and were being jailed for blasphemy. Darwin, nervous and nauseous, trying spas and quack remedies (even tying plate batteries to his heaving stomach), understood the conservative clerical morality. He was sensitive to the offense he might cause. He was also immensely wealthy: by the late 1840s the Darwins had £80,000 invested; he was an absentee landlord of two large Lincolnshire farms; and in the 1850s he plowed tens of thousands of pounds into railway shares. Even though his theory, with its capitalist and meritocratic emphasis, was quite unlike anything touted by the radicals and rioters, these turbulent years were no time to break cover.
From 1846 to 1854, Darwin added to his credibility as an expert on species by pursuing a detailed study of all known barnacles (barnacle). Intrigued by their sexual differentiation, he discovered that some females had tiny degenerate males clinging to them. This sparked his interest in the evolution of diverging male and female forms from an original hermaphrodite creature. Four monographs on such an obscure group made him a world expert and gained him the Royal Society's Royal Medal in 1853. No longer could he be dismissed as a speculator on biological matters.
On the Origin of Species
England became quieter and more prosperous in the 1850s, and by mid-decade the professionals were taking over, instituting exams and establishing a meritocracy. The changing social composition of science—typified by the rise of the freethinking biologist Thomas Henry Huxley (Huxley, T.H.)—promised a better reception for Darwin. Huxley, the philosopher Herbert Spencer (Spencer, Herbert), and other outsiders were opting for a secular nature in the rationalist Westminster Review and deriding the influence of “parsondom.” Darwin had himself lost the last shreds of his belief in Christianity with the tragic death of his oldest daughter, Annie, from typhoid (typhoid fever) in 1851.
The world was becoming safer for Darwin and his theory: mid-Victorian England was stabler than the “hungry Thirties” or turbulent 1840s. In 1854 he solved his last major problem, the forking of genera to produce new evolutionary branches. He used an industrial analogy familiar from the Wedgwood factories, the division of labour: competition in nature's overcrowded marketplace would favour variants that could exploit different aspects of a niche. Species (speciation) would diverge on the spot, like tradesmen in the same tenement. Through 1855 Darwin experimented with seeds in seawater, to prove that they could survive ocean crossings to start the process of speciation on islands. Then he kept fancy pigeons (pigeon), to see if the chicks were more like the ancestral rock dove than their own bizarre parents. Darwin perfected his analogy of natural selection with the fancier's “artificial selection,” as he called it. He was preparing his rhetorical strategy, ready to present his theory.
After speaking to Huxley and Hooker at Downe in April 1856, Darwin began writing a triple-volume book, tentatively called Natural Selection, which was designed to crush the opposition with a welter of facts. Darwin now had immense scientific and social authority, and his place in the parish was assured when he was sworn in as a justice of the peace in 1857. Encouraged by Lyell, Darwin continued writing through the birth of his 10th and last child, the mentally retarded Charles Waring Darwin (born in 1856, when Emma was 48). Whereas in the 1830s Darwin had thought that species remained perfectly adapted until the environment changed, he now believed that every new variation was imperfect, and that perpetual struggle was the rule. He also explained the evolution of sterile worker bees in 1857. These could not be selected because they did not breed, so he opted for “family” selection (kin selection, as it is known today): the whole colony benefited from their retention.
Darwin had finished a quarter of a million words by June 18, 1858. That day he received a letter from Alfred Russel Wallace (Wallace, Alfred Russel), an English socialist and specimen collector working in the Malay Archipelago, sketching a similar-looking theory. Darwin, fearing loss of priority, accepted Lyell's and Hooker's solution: they read joint extracts from Darwin's and Wallace's works at the Linnean Society on July 1, 1858. Darwin was away, sick, grieving for his tiny son who had died from scarlet fever, and thus he missed the first public presentation of the theory of natural selection. It was an absenteeism that would mark his later years.
Darwin hastily began an “abstract” of Natural Selection, which grew into a more accessible book, On the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life. Suffering from a terrible bout of nausea, Darwin, now 50, was secreted away at a spa on the desolate Yorkshire moors when the book was sold to the trade on November 22, 1859. He still feared the worst and sent copies to the experts with self-effacing letters (“how you will long to crucify me alive”). It was like “living in Hell,” he said about these months.
The book did distress his Cambridge patrons, but they were marginal to science now. However, radical Dissenters were sympathetic, as were the rising London biologists and geologists, even if few actually adopted Darwin's cost-benefit approach to nature. The newspapers drew the one conclusion that Darwin had specifically avoided: that humans had evolved from apes, and that Darwin was denying mankind's immortality. A sensitive Darwin, making no personal appearances, let Huxley, by now a good friend, manage this part of the debate. The pugnacious Huxley, who loved public argument as much as Darwin loathed it, had his own reasons for taking up the cause, and did so with enthusiasm. He wrote three reviews of Origin of Species, defended human evolution at the Oxford meeting of the British Association for the Advancement of Science in 1860 (when Bishop Samuel Wilberforce (Wilberforce, Samuel) jokingly asked whether the apes were on Huxley's grandmother's or grandfather's side), and published his own book on human evolution, Evidence as to Man's Place in Nature (1863). What Huxley championed was Darwin's evolutionary naturalism, his nonmiraculous assumptions, which pushed biological science into previously taboo areas and increased the power of Huxley's professionals. And it was they who gained the Royal Society's Copley Medal for Darwin in 1864.
Huxley's reaction, with its enthusiasm for evolution and cooler opinion of natural selection, was typical. natural selection—the “law of higgledy-piggledy” in Herschel's dismissive words—received little support in Darwin's day. By contrast, evolution itself (“descent,” Darwin called it—the word evolution would only be introduced in the last, 1872, edition of the Origin) was being acknowledged from British Association platforms by 1866. That year, too, Darwin met his German admirer, the zoologist Ernst Haeckel (Haeckel, Ernst), whose proselytizing would spread Darwinismus through the Prussian world. Two years later the King of Prussia conferred on Darwin the order Pour le Mérite.
The patriarch in his home laboratory
Long periods of debilitating sickness in the 1860s left the craggy, bearded Darwin thin and ravaged. He once vomited for 27 consecutive days. Down House was an infirmary where illness was the norm and Emma the attendant nurse. She was a shield, protecting the patriarch, cosseting him. Darwin was a typical Victorian in his racial and sexual stereotyping—however dependent on his redoubtable wife, he still thought women inferior; and although a fervent abolitionist, he still considered blacks a lower race. But few outside of the egalitarian socialists challenged these prejudices—and Darwin, immersed in a competitive Whig culture, and enshrining its values in his science, had no time for socialism.
The house was also a laboratory, where Darwin continued experimenting and revamping the Origin through six editions. Although quietly swearing by “my deity ‘Natural Selection,'” he answered critics by reemphasizing other causes of change—for example, the effects of continued use of an organ—and he bolstered the Lamarckian belief that such alterations through excessive use might be passed on. In Variation of Animals and Plants under Domestication (1868) he marshaled the facts and explored the causes of variation in domestic breeds. The book answered critics such as George Douglas Campbell, the eighth duke of Argyll, who loathed Darwin's blind, accidental process of variation and envisaged the appearance of “new births” as goal directed. By showing that fanciers picked from the gamut of naturally occurring variations to produce the tufts and topknots on their fancy pigeons, Darwin undermined this providential explanation.
In 1867 the engineer Fleeming Jenkin (Jenkin, Fleeming) argued that any single favourable variation would be swamped and lost by back-breeding within the general population. No mechanism was known for inheritance, and so in the Variation Darwin devised his hypothesis of “pangenesis” to explain the discrete inheritance of traits. He imagined that each tissue of an organism threw out tiny “gemmules,” which passed to the sex organs and permitted copies of themselves to be made in the next generation. But Darwin's cousin Francis Galton (Galton, Sir Francis) failed to find these gemmules in rabbit blood, and the theory was dismissed.
Darwin was adept at flanking movements in order to get around his critics. He would take seemingly intractable subjects—like orchid flowers (botany)—and make them test cases for “natural selection.” Hence the book that appeared after the Origin was, to everyone's surprise, The Various Contrivances by which British and Foreign Orchids are Fertilised by Insects (1862). He showed that the orchid's beauty was not a piece of floral whimsy “designed” by God to please humans but honed by selection to attract insect cross-pollinators. The petals guided the bees to the nectaries, and pollen sacs were deposited (pollination) exactly where they could be removed by a stigma of another flower.
But why the importance of cross-pollination? Darwin's botanical work was always subtly related to his evolutionary mechanism. He believed that cross-pollinated plants would produce fitter offspring than self-pollinators, and he used considerable ingenuity in conducting thousands of crossings to prove the point. The results appeared in The Effects of Cross and Self Fertilization in the Vegetable Kingdom (1876). His next book, The Different Forms of Flowers on Plants of the Same Species (1877), was again the result of long-standing work into the way evolution in some species favoured different male and female forms of flowers to facilitate outbreeding. Darwin had long been sensitive to the effects of inbreeding because he was himself married to a Wedgwood cousin, as was his sister Caroline. He agonized over its debilitating consequence for his five sons. Not that he need have worried, for they fared well: William became a banker, Leonard an army major, George (Darwin, Sir George) the Plumian Professor of Astronomy at Cambridge, Francis a reader in botany at Cambridge, and Horace a scientific instrument maker. Darwin also studied insectivorous plants, climbing plants, and the response of plants to gravity and light (sunlight, he thought, activated something in the shoot tip, an idea that guided future work on growth hormones in plants).
The private man and the public debate
Through the 1860s natural selection was already being applied to the growth of society. A.R. Wallace (Wallace, Alfred Russel) saw cooperation strengthening the moral bonds within primitive tribes. Advocates of social Darwinism, in contrast, complained that modern civilization was protecting the “unfit” from natural selection. Francis Galton (Galton, Sir Francis) argued that particular character traits—even drunkenness and genius—were inherited and that “ eugenics,” as it would come to be called, would stop the genetic drain. The trend to explain the evolution of human races, morality, and civilization was capped by Darwin in his two-volume The Descent of Man, and Selection in Relation to Sex (1871). The book was authoritative, annotated, and heavily anecdotal in places. The two volumes were discrete, the first discussing the g of civilization and human origins among the Old World monkeys (monkey). (Darwin's depiction of a hairy human ancestor with pointed ears led to a spate of caricatures.) The second volume responded to critics like Argyll, who doubted that the iridescent hummingbird's plumage had any function—or any Darwinian explanation. Darwin argued that female birds were choosing mates for their gaudy plumage. Darwin as usual tapped his huge correspondence network of breeders, naturalists, and travelers worldwide to produce evidence for this. Such “sexual selection” happened among humans too. With primitive societies accepting diverse notions of beauty, aesthetic preferences, he believed, could account for the origin of the human races.
Darwin's explanation was also aimed partly at Wallace. Like so many disillusioned socialists, Wallace had become engaged in spiritualism. He argued that an overdeveloped human brain had been provided by the spirit forces to move humanity toward millennial perfection. Darwin had no time for this. Even though he eventually attended a séance with Galton and the novelist George Eliot (Eliot, George) (Marian Evans) at his brother's house in 1874, he was appalled at “such rubbish,” and in 1876 he sent £10 toward the costs of the prosecution of the medium Henry Slade.
Darwin finished another long-standing line of work. Since studying the moody orangutans at London Zoo in 1838, through the births of his 10 children (whose facial contortions he duly noted), Darwin had been fascinated by expression. As a student he had heard the attacks on the idea that peoples' facial muscles were designed by God to express their unique thoughts. Now his photographically illustrated The Expression of the Emotions in Man and Animals (1872) expanded the subject to include the rages and grimaces of asylum inmates, all to show the continuity of emotions (emotion) and expressions between humans and animals.
The gentle Darwin elicited tremendous devotion. A protective circle formed around him, locked tight by Huxley and Hooker. It was they who ostracized detractors, particularly the Roman Catholic zoologist Saint George Jackson Mivart (Mivart, Saint George Jackson). Nor did Darwin forget it: he helped raise £2,100 to send a fatigued Huxley on holiday in 1873, and his pestering resulted in the impecunious Wallace being added to the Civil List in 1881. Darwin was held in awe by many, the more so because he was rarely seen. And when he was seen—for example, by the Harvard philosopher John Fiske (Fiske, John), a privileged visitor to Down House in 1873—he was found to be “the dearest, sweetest, loveliest old grandpa that ever was.”
Darwin wrote his autobiography between 1876 and 1881. It was composed for his grandchildren, rather than for publication, and it was particularly candid on his dislike of Christian myths of eternal torment. To people who inquired about his religious beliefs, however, he would only say that he was an agnostic (a word coined by Huxley in 1869).
The treadmill of experiment and writing gave so much meaning to his life. But as he wrapped up his final, long-term interest, publishing The Formation of Vegetable Mould, Through the Action of Worms (1881), the future looked bleak. Such an earthy (earthworm) subject was typical Darwin: just as he had shown that today's ecosystems were built by infinitesimal degrees and the mighty Andes by tiny uplifts, so he ended on the monumental transformation of landscapes by the Earth's humblest denizens.
Suffering from angina (angina pectoris), he looked forward to joining the worms, contemplating “Down graveyard as the sweetest place on earth.” He had a seizure in March 1882 and died of a heart attack on April 19. Influential groups wanted a grander commemoration than a funeral in Downe, something better for the gentleman naturalist who had delivered the “new Nature” into the new professionals' hands. Galton had the Royal Society request the family's permission for a state burial. Huxley, who by taking over the public debate had preserved Darwin's reputation of “sweet and gentle nature blossomed into perfection,” as a newspaper put it, convinced the canon of Westminster Abbey to bury the diffident agnostic there. And so Darwin was laid to rest with full ecclesiastical pomp on April 26, 1882, attended by the new nobility of science and the state.
Adrian J. Desmond
Major Works
Book-length works by Charles Darwin (presented in chronological order of publication) include: Journal of Researches into the Geology and Natural History of the Various Countries Visited by H.M.S. Beagle (1839); The Structure and Distribution of Coral Reefs (1842); Geological Observations on the Volcanic Islands, Visited during the Voyage of H.M.S. Beagle (1844); Geological Observations on South America (1846); A Monograph on the Fossil Lepadidae, or, Pedunculated Cirripedes of Great Britain (1851); A Monograph on the Sub-Class Cirripedia, 2 vol. (1851–54); A Monograph on the Fossil Balanidae and Verrucidae of Great Britain (1854); On the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life (1859); On the Various Contrivances by which British and Foreign Orchids are Fertilised by Insects (1862); The Variation of Animals and Plants under Domestication, 2 vol. (1868); The Descent of Man, and Selection in Relation to Sex, 2 vol. (1871); The Expression of the Emotions in Man and Animals (1872); Insectivorous Plants (1875); The Movements and Habits of Climbing Plants (1875); The Effects of Cross and Self Fertilisation in the Vegetable Kingdom (1876); The Different Forms of Flowers on Plants of the Same Species (1877); The Power of Movement in Plants (1880); The Formation of Vegetable Mould, through the Action of Worms, with Observations on Their Habits (1881).Darwin's first sketches on natural selection were published by Francis Darwin (ed.), The Foundations of the Origin of Species: Two Essays Written in 1842 and 1844 (1909). His journal articles and printed letters have been published by Paul H. Barrett (ed.), The Collected Papers of Charles Darwin, 2 vol. (1977, reissued 2 vol. in 1, 1980). Part of Darwin's “big book” that he never published, Natural Selection, appeared as R.C. Stauffer (ed.), Charles Darwin's Natural Selection: Being the Second Part of His Big Species Book Written from 1856 to 1858 (1975, reissued 1987).Adrian J. Desmond
Additional Reading
Biographical works
For a contextual study of Darwin's life, see Adrian Desmond and James Moore, Darwin (1991), and a detailed two-volume biography by Janet Browne, Charles Darwin (1996–2002). An overview of the latest thinking on Darwin's century is contained in Peter J. Bowler, Charles Darwin: The Man and His Influence (1990). For an account of older biographical works, consult Ralph Colp, Jr., “Charles Darwin's Past and Future Biographies,” in History of Science, 27(2):167–197 (June 1989).Darwin's Kent home is described in Hedley Atkins, Down, the Home of the Darwins: The Story of a House and the People who Lived There (1974). His affection for his daughter Annie as a background to his scientific work is described in Randal Keynes, Darwin, His Daughter, and Human Evolution (2002; originally published in Britain as Annie's Box, 2001). Darwin's own illness and treatments are considered in Ralph Colp, Jr., To Be an Invalid: The Illness of Charles Darwin (1977). Darwin's unexpurgated autobiography was published by Nora Barlow (ed.), The Autobiography of Charles Darwin, 1809–1882, with Original Omissions Restored (1958, reissued 1993).
Letters
Frederick Burkhardt et al. (eds.), The Correspondence of Charles Darwin (1985– ), is the definitive transcription and annotation of letters to and from Darwin; 12 volumes, covering the years 1821–64, had appeared by 2001. It is accompanied by Frederick Burkhardt and Sydney Smith (eds.), A Calendar of the Correspondence of Charles Darwin, 1821–1882 (1985, reissued with supplement, 1994), which lists all 15,000 letters. See also Henrietta Litchfield (ed.), Emma Darwin: A Century of Family Letters, 1792–1896, 2 vol. (1915).
Notebooks
Darwin's evolution notebooks are transcribed and edited by Paul H. Barrett et al. (eds.), Charles Darwin's Notebooks, 1836–1844 (1987); while his marginalia are transcribed in Mario A. Di Gregorio and N.W. Gill (eds.), Charles Darwin's Marginalia, vol. 1 (1990– ). During the 1970s and '80s, textual scholars analyzed Darwin's notebooks in order to trace his development of the theory of natural selection. See particularly David Kohn, “Theories to Work by: Rejected Theories, Reproduction, and Darwin's Path to Natural Selection,” in Studies in History of Biology, 4:67–170 (1980); and the articles in David Kohn (ed.), The Darwinian Heritage (1985). An incisive revisionist account of Darwin's finch collecting on the Galapagos Islands and the development of his transmutationist views in London occurs in Frank J. Sulloway, “Darwin and His Finches: The Evolution of a Legend,” in Journal of the History of Biology, 15(1):1–53 (Spring 1982), and “Darwin's Conversion: The Beagle Voyage and Its Aftermath,” in Journal of the History of Biology, 15(3):325–396 (Fall 1982).The effect of Darwin's evolutionary insights on his metaphysical views is considered in Howard E. Gruber, Darwin on Man: A Psychological Study of Scientific Creativity, 2nd ed. (1981). Darwin's changing conceptualization of evolution in the two decades leading up to the Origin of Species is the subject of Dov Ospovat, The Development of Darwin's Theory: Natural History, Natural Theology, and Natural Selection, 1838–1859 (1981, reprinted 1995).Good summaries of the wealth of Darwin studies are Timothy Lenoir, “Essay Review: The Darwin Industry,” in Journal of the History of Biology, 20(1):115–130 (Spring 1987); and Michael Ruse, “The Darwin Industry: A Guide,” in Victorian Studies, 39(2):217–235 (Winter 1996).Adrian J. Desmond
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Источник: Darwin, Charles
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