Charles Lyell

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Sir Charles Lyell, Bt
Charles Lyell00.jpg
Born(1797-11-14)14 November 1797
Kinnordy House, Angus, Scotland
Died22 February 1875(1875-02-22) (aged 77)
Harley Street, London, England
CitizenshipUnited Kingdom
Alma mater Exeter College, Oxford
Known for Uniformitarianism
Spouse(s) Mary Horner Lyell
Awards Royal Medal (1834)
Copley Medal (1858)
Wollaston Medal (1866)
Scientific career
Institutions King's College London
Influences James Hutton; John Playfair; Jean-Baptiste Lamarck; William Buckland
Influenced Charles Darwin
Alfred Russel Wallace
Thomas Henry Huxley
Roderick Impey Murchison
Joseph Dalton Hooker

Sir Charles Lyell, 1st Baronet, FRS (14 November 1797 – 22 February 1875) was a Scottish geologist who demonstrated the power of known natural causes in explaining Earth's history. He is best known as the author of Principles of Geology (1830–33), which presented to a wide public audience the idea that Earth was shaped by the same natural processes still in operation today, operating at similar intensities. The philosopher William Whewell termed this gradualistic view "uniformitarianism" and contrasted it with catastrophism, which had been championed by Georges Cuvier and was better accepted in Europe. [1] The combination of evidence and eloquence in Principles convinced a wide range of readers of the significance of "deep time" for understanding the Earth and environment. [2]


Lyell's scientific contributions included a pioneering explanation of climate change, in which shifting boundaries between oceans and continents could be used to explain long-term variations in temperature and rainfall. Lyell also gave influential explanations of earthquakes and developed the theory of gradual "backed up-building" of volcanoes. In stratigraphy his division of the Tertiary period into the Pliocene, Miocene, and Eocene was highly influential. He incorrectly conjectured that icebergs may be the emphasis behind the transport of glacial erratics, and that silty loess deposits might have settled out of flood waters. His creation of a separate period for human history, entitled the 'Recent', is widely cited as providing the foundations for the modern discussion of the Anthropocene. [3]

Building on the innovative work of James Hutton and his follower John Playfair, Lyell favoured an indefinitely long age for the Earth, despite evidence suggesting an old but finite age. [4] He was a close friend of Charles Darwin, and contributed significantly to Darwin's thinking on the processes involved in evolution. As Darwin wrote in On the Origin of Species , "He who can read Sir Charles Lyell's grand work on the Principles of Geology, which the future historian will recognise as having produced a revolution in natural science, yet does not admit how incomprehensibly vast have been the past periods of time, may at once close this volume." [5] Lyell helped to arrange the simultaneous publication in 1858 of papers by Darwin and Alfred Russel Wallace on natural selection, despite his personal religious qualms about the theory. He later published evidence from geology of the time man had existed on Earth.


Lyell was born into a wealthy family, on 14 November 1797, at the family's estate house, Kinnordy House, near Kirriemuir in Forfarshire. He was the eldest of ten children. Lyell's father, also named Charles Lyell, was noted as a translator and scholar of Dante. An accomplished botanist, it was he who first exposed his son to the study of nature. Lyell's grandfather, also Charles Lyell, had made the family fortune supplying the Royal Navy at Montrose, enabling him to buy Kinnordy House.

The main geographical
divisions of Scotland Scotland (Location) Named (HR).png
The main geographical
divisions of Scotland

The family seat is located in Strathmore, near the Highland Boundary Fault. Round the house, in the strath, is good farmland, but within a short distance to the north-west, on the other side of the fault, are the Grampian Mountains in the Highlands. His family's second country home was in a completely different geological and ecological area: he spent much of his childhood at Bartley Lodge in the New Forest, in Hampshire in southern England.

Lyell entered Exeter College, Oxford, in 1816, and attended William Buckland's geological lectures. He graduated with a BA Hons. second class degree in classics, in December 1819, and gained his M.A. 1821. [6] [7] After graduation he took up law as a profession, entering Lincoln's Inn in 1820. He completed a circuit through rural England, where he could observe geological phenomena. In 1821 he attended Robert Jameson's lectures in Edinburgh, and visited Gideon Mantell at Lewes, in Sussex. In 1823 he was elected joint secretary of the Geological Society. As his eyesight began to deteriorate, he turned to geology as a full-time profession. [7] His first paper, "On a recent formation of freshwater limestone in Forfarshire", was presented in 1822. [7] By 1827, he had abandoned law and embarked on a geological career that would result in fame and the general acceptance of uniformitarianism, a working out of the ideas proposed by James Hutton a few decades earlier.

Charles Lyell at the British Association meeting in Glasgow 1840. Painting by Alexander Craig. Lyell 1840.jpg
Charles Lyell at the British Association meeting in Glasgow 1840. Painting by Alexander Craig.

In 1832, Lyell married Mary Horner in Bonn, daughter of Leonard Horner (1785–1864), also associated with the Geological Society of London. The new couple spent their honeymoon in Switzerland and Italy on a geological tour of the area. [8]

Lyell Family Grave in Brookwood Cemetery with a memorial to Lyell Lyell Family Grave Brookwood Cemetery.jpg
Lyell Family Grave in Brookwood Cemetery with a memorial to Lyell

During the 1840s, Lyell travelled to the United States and Canada, and wrote two popular travel-and-geology books: Travels in North America (1845) and A Second Visit to the United States (1849). After the Great Chicago Fire, Lyell was one of the first to donate books to help found the Chicago Public Library. In 1866, he was elected a foreign member of the Royal Swedish Academy of Sciences.

Lyell's wife died in 1873, and two years later (in 1875) Lyell himself died as he was revising the twelfth edition of Principles. He is buried in Westminster Abbey. [8] [9] Lyell was knighted (Kt) in 1848, [10] and later, in 1864, made a baronet (Bt), [11] which is an hereditary honour. He was awarded the Copley Medal of the Royal Society in 1858 and the Wollaston Medal of the Geological Society in 1866. Mount Lyell, the highest peak in Yosemite National Park, is named after him; the crater Lyell on the Moon and a crater on Mars were named in his honour; Mount Lyell in western Tasmania, Australia, located in a profitable mining area, bears Lyell's name; and the Lyell Range in north-west Western Australia is named after him as well. In Southwest Nelson in the South Island of New Zealand, the Lyell Range, Lyell River and the gold mining town of Lyell (now only a camping site) were all named after Lyell. [12] The jawless fish Cephalaspis lyelli, from the Old Red Sandstone of southern Scotland, was named by Louis Agassiz in honour of Lyell. [13]

Career and major writings

Lyell had private means, and earned further income as an author. He came from a prosperous family, worked briefly as a lawyer in the 1820s, and held the post of Professor of Geology at King's College London in the 1830s. From 1830 onward his books provided both income and fame. Each of his three major books was a work continually in progress. All three went through multiple editions during his lifetime, although many of his friends (such as Darwin) thought the first edition of the Principles was the best written. [14] [15] Lyell used each edition to incorporate additional material, rearrange existing material, and revisit old conclusions in light of new evidence.

Lyell between 1865 and 1870 Sir Charles Lyell, 1st Bt.jpg
Lyell between 1865 and 1870

Throughout his life, Lyell kept a remarkable series of nearly three hundred manuscript notebooks and diaries. These were essential to the development of his ideas, and provide a unique record of his travels, conversations, correspondence, reading and field observations.

Principles of Geology , Lyell's first book, was also his most famous, most influential, and most important. First published in three volumes in 1830–33, it established Lyell's credentials as an important geological theorist and propounded the doctrine of uniformitarianism. [16] It was a work of synthesis, backed by his own personal observations on his travels.

The central argument in Principles was that the present is the key to the past – a concept of the Scottish Enlightenment which David Hume had stated as "all inferences from experience suppose ... that the future will resemble the past", and James Hutton had described when he wrote in 1788 that "from what has actually been, we have data for concluding with regard to that which is to happen thereafter." [17] Geological remains from the distant past can, and should, be explained by reference to geological processes now in operation and thus directly observable. Lyell's interpretation of geological change as the steady accumulation of minute changes over enormously long spans of time was a powerful influence on the young Charles Darwin. Lyell asked Robert FitzRoy, captain of HMS Beagle, to search for erratic boulders on the survey voyage of the Beagle, and just before it set out FitzRoy gave Darwin Volume 1 of the first edition of Lyell's Principles. When the Beagle made its first stop ashore at St Jago in the Cape Verde islands, Darwin found rock formations which seen "through Lyell's eyes" gave him a revolutionary insight into the geological history of the island, an insight he applied throughout his travels.

While in South America Darwin received Volume 2 which considered the ideas of Lamarck in some detail. Lyell rejected Lamarck's idea of organic evolution, proposing instead "Centres of Creation" to explain diversity and territory of species. However, as discussed below, many of his letters show he was fairly open to the idea of evolution. [18] In geology Darwin was very much Lyell's disciple, and brought back observations and his own original theorising, including ideas about the formation of atolls, which supported Lyell's uniformitarianism. On the return of the Beagle (October 1836) Lyell invited Darwin to dinner and from then on they were close friends. Although Darwin discussed evolutionary ideas with him from 1842, Lyell continued to reject evolution in each of the first nine editions of the Principles. He encouraged Darwin to publish, and following the 1859 publication of On the Origin of Species , Lyell finally offered a tepid endorsement of evolution in the tenth edition of Principles.

The frontispiece from Elements of Geology Lyell Principles frontispiece.jpg
The frontispiece from Elements of Geology

Elements of Geology began as the fourth volume of the third edition of Principles : Lyell intended the book to act as a suitable field guide for students of geology. [6] The systematic, factual description of geological formations of different ages contained in Principles grew so unwieldy, however, that Lyell split it off as the Elements in 1838. The book went through six editions, eventually growing to two volumes and ceasing to be the inexpensive, portable handbook that Lyell had originally envisioned. Late in his career, therefore, Lyell produced a condensed version titled Student's Elements of Geology that fulfilled the original purpose.

Geological Evidences of the Antiquity of Man brought together Lyell's views on three key themes from the geology of the Quaternary Period of Earth history: glaciers, evolution, and the age of the human race. First published in 1863, it went through three editions that year, with a fourth and final edition appearing in 1873. The book was widely regarded as a disappointment because of Lyell's equivocal treatment of evolution. Lyell, a highly religious man with a strong belief in the special status of human reason, had great difficulty reconciling his beliefs with natural selection. [19]

Scientific contributions

Lyell's geological interests ranged from volcanoes and geological dynamics through stratigraphy, palaeontology, and glaciology to topics that would now be classified as prehistoric archaeology and paleoanthropology. He is best known, however, for his role in elaborating the doctrine of uniformitarianism. He played a critical role in advancing the study of loess. [20]


From 1830 to 1833 his multi-volume Principles of Geology was published. The work's subtitle was "An attempt to explain the former changes of the Earth's surface by reference to causes now in operation", and this explains Lyell's impact on science. He drew his explanations from field studies conducted directly before he went to work on the founding geology text. [7] He was, along with the earlier John Playfair, the major advocate of James Hutton's idea of uniformitarianism, that the earth was shaped entirely by slow-moving forces still in operation today, acting over a very long period of time. This was in contrast to catastrophism, an idea of abrupt geological changes, which had been adapted in England to explain landscape features--such as rivers much smaller than their associated valleys--that seemed impossible to explain other than through violent action. Criticizing the reliance of his contemporaries on what he argued were ad hoc explanations, Lyell wrote,

Never was there a doctrine more calculated to foster indolence, and to blunt the keen edge of curiosity, than this assumption of the discordance between the former and the existing causes of change... The student was taught to despond from the first. Geology, it was affirmed, could never arise to the rank of an exact science... [With catastrophism] we see the ancient spirit of speculation revived, and a desire manifestly shown to cut, rather than patiently untie, the Gordian Knot.-Sir Charles Lyell, Principles of Geology , 1854 edition, p.196; quoted by Stephen Jay Gould. [21]

Lyell saw himself as "the spiritual saviour of geology, freeing the science from the old dispensation of Moses." [22] The two terms, uniformitarianism and catastrophism, were both coined by William Whewell; [23] in 1866 R. Grove suggested the simpler term continuity for Lyell's view, but the old terms persisted. In various revised editions (12 in all, through 1872), Principles of Geology was the most influential geological work in the middle of the 19th century, and did much to put geology on a modern footing.

Geological surveys

Lyell noted the "economic advantages" that geological surveys could provide, citing their felicity in mineral-rich countries and provinces. Modern surveys, like the British Geological Survey (founded in 1835), and the US Geological Survey (founded in 1879), map and exhibit the natural resources within the country. So, in endorsing surveys, as well as advancing the study of geology, Lyell helped to forward the business of modern extractive industries, such as the coal and oil industry.

Volcanoes and geological dynamics

Lyell argued that volcanoes like Vesuvius had built up gradually. Vesuvius from plane.jpg
Lyell argued that volcanoes like Vesuvius had built up gradually.

Before the work of Lyell, phenomena such as earthquakes were understood by the destruction that they brought. One of the contributions that Lyell made in Principles was to explain the cause of earthquakes. [24] Lyell, in contrast focused on recent earthquakes (150 yrs), evidenced by surface irregularities such as faults, fissures, stratigraphic displacements and depressions. [24]

Lyell's work on volcanoes focused largely on Vesuvius and Etna, both of which he had earlier studied. His conclusions supported gradual building of volcanoes, so-called "backed up-building", [6] as opposed to the upheaval argument supported by other geologists.

Stratigraphy and human history

Lyell was a key figure in establishing the classification of more recent geological deposits, long known as the Tertiary period. From May 1828, until February 1829, he travelled with Roderick Impey Murchison (1792–1871) to the south of France (Auvergne volcanic district) and to Italy. [6] [8] [25] In these areas he concluded that the recent strata (rock layers) could be categorised according to the number and proportion of marine shells encased within. Based on this the third volume of his Principles of Geology , published in 1833, proposed dividing the Tertiary period into four parts, which he named the Eocene, Miocene, Pliocene, and Recent. In 1839, Lyell termed the Pleistocene epoch, distinguishing a more recent fossil layer from the Pliocene. [26] The Recent epoch  renamed the Holocene by French paleontologist Paul Gervais in 1867  included all deposits from the era subject to human observation. In recent years Lyell's subdivisions have been widely discussed in relation to debates about the Anthropocene.


Lateral moraine on a glacier joining the Gorner Glacier, Zermatt, Switzerland. Glacier.zermatt.arp.750pix.jpg
Lateral moraine on a glacier joining the Gorner Glacier, Zermatt, Switzerland.

In Principles of Geology (first edition, vol. 3, ch. 2, 1833) [8] Lyell proposed that icebergs could be the means of transport for erratics. During periods of global warming, ice breaks off the poles and floats across submerged continents, carrying debris with it, he conjectured. When the iceberg melts, it rains down sediments upon the land. Because this theory could account for the presence of diluvium, the word drift became the preferred term for the loose, unsorted material, today called till. Furthermore, Lyell believed that the accumulation of fine angular particles covering much of the world (today called loess) was a deposit settled from mountain flood water. [27] Today some of Lyell's mechanisms for geological processes have been disproven, though many have stood the test of time. [7] His observational methods and general analytical framework remain in use today as foundational principles in geology. [7]


Lyell initially accepted the conventional view of other men of science, that the fossil record indicated a directional geohistory in which species went extinct. Around 1826, when he was on circuit, he read Lamarck's Zoological Philosophy and on 2 March 1827 wrote to Mantell, expressing admiration, but cautioning that he read it "rather as I hear an advocate on the wrong side, to know what can be made of the case in good hands".: [28]

"I devoured Lamarck... his theories delighted me... I am glad that he has been courageous enough and logical enough to admit that his argument, if pushed as far as it must go, if worth anything, would prove that men may have come from the Ourang-Outang. But after all, what changes species may really undergo!... That the Earth is quite as old as he supposes, has long been my creed..." [29]

He struggled with the implications for human dignity, and later in 1827 wrote private notes on Lamarck's ideas. Lyell reconciled transmutation of species with natural theology by suggesting that it would be as much a "remarkable manifestation of creative Power" as creating each species separately. He countered Lamarck's views by rejecting continued cooling of the Earth in favour of "a fluctuating cycle", a long-term steady-state geohistory as proposed by James Hutton. The fragmentary fossil record already showed "a high class of fishes, close to reptiles" in the Carboniferous period which he called "the first Zoological era", and quadrupeds could also have existed then. In November 1827, after William Broderip found a Middle Jurassic fossil of the early mammal Didelphis , Lyell told his father that "There was everything but man even as far back as the Oolite." [28] Lyell inaccurately portrayed Lamarckism as a response to the fossil record, and said it was falsified by a lack of progress. He said in the second volume of Principles that the occurrence of this one fossil of the higher mammalia "in these ancient strata, is as fatal to the theory of successive development, as if several hundreds had been discovered." [30]

Charles Darwin Charles Darwin portrait by T. H. Maguire, 1849.jpg
Charles Darwin

In the first edition of Principles, the first volume briefly set out Lyell's concept of a steady state with no real progression of fossils. The sole exception was the advent of humanity, with no great physical distinction from animals, but with absolutely unique intellectual and moral qualities. The second volume dismissed Lamarck's claims of animal forms arising from habits, continuous spontaneous generation of new life, and man having evolved from lower forms. Lyell explicitly rejected Lamarck's concept of transmutation of species, drawing on Cuvier's arguments, and concluded that species had been created with stable attributes. He discussed the geographical distribution of plants and animals, and proposed that every species of plant or animal was descended from a pair or individual, originated in response to differing external conditions. Species would regularly go extinct, in a "struggle for existence" between hybrids, or a "war one with another" due to population pressure. He was vague about how replacement species formed, portraying this as an infrequent occurrence which could rarely be observed. [31]

The leading man of science Sir John Herschel wrote from Cape Town on 20 February 1836, thanking Lyell for sending a copy of Principles and praising the book as opening a way for bold speculation on "that mystery of mysteries, the replacement of extinct species by others" – by analogy with other intermediate causes, "the origination of fresh species, could it ever come under our cognizance, would be found to be a natural in contradistinction to a miraculous process". [32] Lyell replied: "In regard to the origination of new species, I am very glad to find that you think it probable that it may be carried on through the intervention of intermediate causes. I left this rather to be inferred, not thinking it worth while to offend a certain class of persons by embodying in words what would only be a speculation." [33] Whewell subsequently questioned this topic, and in March 1837 Lyell told him: [18]

"If I had stated... the possibility of the introduction or origination of fresh species being a natural, in contradistinction to a miraculous process, I should have raised a host of prejudices against me, which are unfortunately opposed at every step to any philosopher who attempts to address the public on these mysterious subjects". [34]

As a result of his letters and, no doubt, personal conversations, Huxley and Haeckel were convinced that, at the time he wrote Principles, he believed new species had arisen by natural methods. Sedgwick wrote worried letters to him about this. [35]

By the time Darwin returned from the Beagle survey expedition in 1836, he had begun to doubt Lyell's ideas about the permanence of species. He continued to be a close personal friend, and Lyell was one of the first scientists to support On the Origin of Species , though he did not subscribe to all its contents. Lyell was also a friend of Darwin's closest colleagues, Hooker and Huxley, but unlike them he struggled to square his religious beliefs with evolution. This inner struggle has been much commented on. He had particular difficulty in believing in natural selection as the main motive force in evolution. [36] [37] [38]

Alfred Russel Wallace in 1862. Alfred Russel Wallace 1862 - Project Gutenberg eText 15997.png
Alfred Russel Wallace in 1862.

Lyell and Hooker were instrumental in arranging the peaceful co-publication of the theory of natural selection by Darwin and Alfred Russel Wallace in 1858: each had arrived at the theory independently. Lyell's views on gradual change and the power of a long time scale were important because Darwin thought that populations of an organism changed very slowly.

Although Lyell rejected evolution at the time of writing the Principles, [39] after the Darwin–Wallace papers and the Origin Lyell wrote in one of his notebooks:

3 May 1860: "Mr. Darwin has written a work which will constitute an era in geology & natural history to show that... the descendants of common parents may become in the course of ages so unlike each other as to be entitled to rank as a distinct species, from each other or from some of their progenitors". [40]

Lyell's acceptance of natural selection, Darwin's proposed mechanism for evolution, was equivocal, and came in the tenth edition of Principles. [7] [41] The Antiquity of Man (published in early February 1863, just before Huxley's Man's place in nature) drew these comments from Darwin to Huxley:

"I am fearfully disappointed at Lyell's excessive caution" and "The book is a mere 'digest' ". [42]

Quite strong remarks: no doubt Darwin resented Lyell's repeated suggestion that he owed a lot to Lamarck, whom he (Darwin) had always specifically rejected. Darwin's daughter Henrietta (Etty) wrote to her father: "Is it fair that Lyell always calls your theory a modification of Lamarck's?" [43] [44]

In other respects Antiquity was a success. It sold well, and it "shattered the tacit agreement that mankind should be the sole preserve of theologians and historians". [45] But when Lyell wrote that it remained a profound mystery how the huge gulf between man and beast could be bridged, Darwin wrote "Oh!" in the margin of his copy. [19]


California's Mount Lyell group Mount Lyell Group.jpg
California's Mount Lyell group

Places named after Lyell:


Principles of Geology

Online first edition

  • Principles of geology, being an attempt to explain the former changes of the Earth's surface, by reference to causes now in operation. vol. 1. London: John Murray. 1830.CS1 maint: ref=harv (link)
  • Principles of geology, being an attempt to explain the former changes of the Earth's surface, by reference to causes now in operation. vol. 2. London: John Murray. 1832.CS1 maint: ref=harv (link)
  • Principles of geology, being an attempt to explain the former changes of the Earth's surface, by reference to causes now in operation. vol. 3. London: John Murray. 1833.CS1 maint: ref=harv (link)

Details of publication

  • Principles of Geology 1st edition, 1st vol. Jan. 1830 (John Murray, London).
  • Principles of Geology 1st edition, 2nd vol. Jan. 1832
  • Principles of Geology 1st edition, 3rd vol. May 1833
  • Principles of Geology 2nd edition, 1st vol. 1832
  • Principles of Geology 2nd edition, 2nd vol. Jan. 1833
  • Principles of Geology 3rd edition, 4 vols. May 1834
  • Principles of Geology 4th edition, 4 vols. June 1835
  • Principles of Geology 5th edition, 4 vols. March 1837
  • Principles of Geology 6th edition, 3 vols. June 1840
  • Principles of Geology 7th edition, 1 vol. Feb. 1847
  • Principles of Geology 8th edition, 1 vol. May 1850
  • Principles of Geology 9th edition, 1 vol. June 1853
  • Principles of Geology 10th edition, 1866–68
  • Principles of Geology 11th edition, 2 vols. 1872
  • Principles of Geology 12th edition, 2 vols. 1875 (published posthumously)

Elements of Geology

Travels in North America

Antiquity of Man

Life, Letters, and Journals

Further reading


  1. Cannon (1961), pp. 301–314.
  2. McPhee 1982.
  3. Crutzen, Paul. "The 'Anthropocene'" (PDF). Retrieved 16 May 2019.
  4. Rudwick (2014).
  5. Darwin, Charles. "On the Origin of Species". Complete Works of Charles Darwin Online. John Murray. Retrieved 16 May 2019.
  6. 1 2 3 4 Bailey (1962).
  7. 1 2 3 4 5 6 7 Wilson 1973.
  8. 1 2 3 4 MaComber 1997.
  9. "Charles Lyell". Westminster Abbey. Retrieved 8 September 2018.
  10. "No. 20905". The London Gazette . 13 October 1848. p. 3692.
  11. "No. 22878". The London Gazette . 22 July 1864. p. 3665.
  12. Russell, Steph (2011). "Lyell". Retrieved 8 September 2018.
  13. White (1958), pp. 99-105.
  14. Darwin, F. (1887). Life and letters of Charles Darwin. II. London. p. 90.CS1 maint: ref=harv (link)
  15. Darwin, F; Seward, A.C. (1903). More letters of Charles Darwin. II. London. p. 232.CS1 maint: ref=harv (link)
  16. Thanukos 2012.
  17. Mathieson, Elizabeth Lincoln (13 May 2002). "The Present is the Key to the Past is the Key to the Future". The Geological Society of America. Retrieved 28 September 2010.CS1 maint: ref=harv (link)
  18. 1 2 Judd (1910).
  19. 1 2 Bynum (1984), pp. 153-187.
  20. Smalley, Gaudenyi & Jovanovic (2015), pp. 45-50.
  21. Galilei, Galileo (2001). Stephen Jay Gould (ed.). Dialogue on the Two Chief World Systems. New York: Modern Science Library. pp. ix–x.
  22. Porter 1976, p. 91.
  23. Whewell, William 1837. History of the Inductive Sciences, vol. IV of the Historical and Philosophical Works of William Whewell. Chapter VIII The two antagonistic doctrines of geology. [reprint of 3rd edition of 1857, publ. Cass 1967].
  24. 1 2 Adams (1938).
  25. Stafford (1989).
  26. Lyell, Charles (1839). Nouveaux éléments de géologie (in French). Paris, France: Pitois-Levranet. p. 621.
  27. Lyell, Charles (1881). "XXIV". Life, Letters and Journals of Sir Charles Lyell. John Murray. p. 110.
    You hint at icebergs and northern waves. The former has no doubt had its influence, and when icebergs turn over, or fall to pieces, huge waves are caused not merely from the north. But it has always seemed to me that much more influence ought to be attributed to simple denudation where beds of loose sand, gravel, or mud were upheaved, and sometimes alternately depressed and upraised in an open sea. The exposure of such destructible materials must have led to the confusion you allude to, but much less so where the beds were protected in fiords, &c. The broken fossils found in these strata would agree with my denudation hypothesis, which I think strengthened by the frequent regular re-stratification of the beds containing the deep and shallow water species.
  28. 1 2 Rudwick (2010), pp. 244–250.
  29. Lyell K. 1881. The life and letters of Sir Charles Lyell. 2 vols, London. vol. 1 p. 168
  30. Ruse 1999, p. 76.
  31. Ruse 1999, pp. 75–77.
  32. Babbage 1838, pp.  225–227.
  33. Ruse 1999, p. 84.
  34. Lyell to William Whewell, 7 March 1837. In Lyell K. 1881. The life and letters of Sir Charles Lyell. 2 vols, London. vol. 2 p. 5
  35. Judd (1910), pp. 83–86, Ch. 8.
  36. Bowler (2003), pp. 129–134, 149–150, 215.
  37. Mayr (1982), pp. 375–381, 404–408.
  38. Bartholomew (1973), pp. 261–303.
  39. Lyell (1832), pp. 20–21.
  40. Wilson (1970), p. 407.
  41. Desmond (1982), p. 179: "Even Charles Lyell agreed... that 'natural selection was a force quite subordinate to that variety-making or creative power to which all the wonders of the organic world must be referred.' "
  42. Burkhardt F. and Smith S. 1982–present. The correspondence of Charles Darwin. Cambridge, vol. 11, pp. 173, 181.
  43. Burkhardt F. and Smith S. 1982–present. The correspondence of Charles Darwin. Cambridge, vol. 11, p. 223.
  44. Browne (2003), p. 219.
  45. Browne (2003), p. 218.
  46. 1 2 "Review of A Second Visit to the United States of North America, in the Years 1845-6 by Sir Charles Lyell". The Quarterly Review. 85: 183–224. June 1849.
  47. 1 2 "Review of Life, Letters, and Journals by Sir Charles Lyell, Bart. ed. by his Sister-in-Law, Mrs. Lyell". The Quarterly Review. 153: 96–131. January 1882.

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Sir John Frederick William Herschel, 1st Baronet was an English polymath, mathematician, astronomer, chemist, inventor, experimental photographer who invented the blueprint, and did botanical work.

Georges Cuvier French naturalist, zoologist and paleontologist

Jean Léopold Nicolas Frédéric, Baron Cuvier, known as Georges Cuvier, was a French naturalist and zoologist, sometimes referred to as the "founding father of paleontology". Cuvier was a major figure in natural sciences research in the early 19th century and was instrumental in establishing the fields of comparative anatomy and paleontology through his work in comparing living animals with fossils.

Catastrophism is the theory that the Earth has largely been shaped by sudden, short-lived, violent events, possibly worldwide in scope. This is in contrast to uniformitarianism, in which slow incremental changes, such as erosion, created all the Earth's geological features. The proponents of uniformitarianism held that the present was the key to the past, and that all geological processes throughout the past were like those that can be observed now. Since the early disputes, a more inclusive and integrated view of geologic events has developed, in which the scientific consensus accepts that there were some catastrophic events in the geologic past, but these were explicable as extreme examples of natural processes which can occur.

William Whewell English philosopher & historian of science

Rev Dr William Whewell DD HFRSE was an English polymath, scientist, Anglican priest, philosopher, theologian, and historian of science. He was Master of Trinity College, Cambridge. In his time as a student there, he achieved distinction in both poetry and mathematics.

Deep time is a term introduced and applied by John McPhee to the concept of geologic time in his Basin and Range (1981), parts of which originally appeared in the New Yorker magazine..

Theistic evolution Views that regard religious teachings about God as compatible with modern scientific understanding about biological evolution

Theistic evolution, theistic evolutionism, evolutionary creationism, divine direction, or God-guided evolution are views that regard religious teachings about God as compatible with modern scientific understanding about biological evolution. Theistic evolution is not in itself a scientific theory, but a range of views about how the science of general evolution relates to religious beliefs in contrast to special creation views.

Transitional fossil Fossilized remains of a life form that exhibits traits common to both an ancestral group and its derived descendant group

A transitional fossil is any fossilized remains of a life form that exhibits traits common to both an ancestral group and its derived descendant group. This is especially important where the descendant group is sharply differentiated by gross anatomy and mode of living from the ancestral group. These fossils serve as a reminder that taxonomic divisions are human constructs that have been imposed in hindsight on a continuum of variation. Because of the incompleteness of the fossil record, there is usually no way to know exactly how close a transitional fossil is to the point of divergence. Therefore, it cannot be assumed that transitional fossils are direct ancestors of more recent groups, though they are frequently used as models for such ancestors.

Roderick Murchison geologist

Sir Roderick Impey Murchison, 1st Baronet, was a Scottish geologist who first described and investigated the Silurian system.

Augustin Pyramus de Candolle 19th-century Swiss botanist, noted for his contributions to taxonomy

Augustin Pyramusde Candolle was a Swiss botanist. René Louiche Desfontaines launched de Candolle's botanical career by recommending him at an herbarium. Within a couple of years de Candolle had established a new genus, and he went on to document hundreds of plant families and create a new natural plant classification system. Although de Candolle's main focus was botany, he also contributed to related fields such as phytogeography, agronomy, paleontology, medical botany, and economic botany.

History of creationism History of thought based on the premise that the natural universe had a beginning, and came into being supernaturally

The history of creationism relates to the history of thought based on the premise that the natural universe had a beginning, and came into being supernaturally. The term creationism in its broad sense covers a wide range of views and interpretations, and was not in common use before the late 19th century. Throughout recorded history, many people have viewed the universe as a created entity. Many ancient historical accounts from around the world refer to or imply a creation of the earth and universe. Although specific historical understandings of creationism have used varying degrees of empirical, spiritual and/or philosophical investigations, they are all based on the view that the universe was created. The Genesis creation narrative has provided a basic framework for Jewish and Christian epistemological understandings of how the universe came into being – through the divine intervention of the god, Yahweh. Historically, literal interpretations of this narrative were more dominant than allegorical ones.

Transmutation of species 19th-century evolutionary ideas for the altering of one species into another that preceded Charles Darwins theory of natural selection

Transmutation of species and transformism are 19th-century evolutionary ideas for the altering of one species into another that preceded Charles Darwin's theory of natural selection. The French Transformisme was a term used by Jean Baptiste Lamarck in 1809 for his theory, and other 19th century proponents of pre-Darwinian evolutionary ideas included Étienne Geoffroy Saint-Hilaire, Robert Grant, and Robert Chambers, the anonymous author of the book Vestiges of the Natural History of Creation. Opposition in the scientific community to these early theories of evolution, led by influential scientists like the anatomists Georges Cuvier and Richard Owen and the geologist Charles Lyell, was intense. The debate over them was an important stage in the history of evolutionary thought and would influence the subsequent reaction to Darwin's theory.

The immediate reactions to On the Origin of Species, the book in which Charles Darwin described evolution by natural selection, included international debate, though the heat of controversy was less than that over earlier works such as Vestiges of Creation. Darwin monitored the debate closely, cheering on Thomas Henry Huxley's battles with Richard Owen to remove clerical domination of the scientific establishment. While Darwin's illness kept him away from the public debates, he read eagerly about them and mustered support through correspondence.

<i>Times Arrow, Times Cycle</i> 1987 book by Stephen Jay Gould

Time's Arrow, Time's Cycle: Myth and Metaphor in the Discovery of Geological Time is a 1987 history of geology by the paleontologist Stephen Jay Gould, in which the author offers a historical account of the conceptualization of Deep Time and uniformitarianism using the works of the English theologian Thomas Burnet, and the Scottish geologists James Hutton and Charles Lyell.

Charles Darwin English naturalist and biologist

Charles Robert Darwin was an English naturalist, geologist and biologist, best known for his contributions to the science of evolution. His proposition that all species of life have descended over time from common ancestors is now widely accepted, and considered a foundational concept in science. In a joint publication with Alfred Russel Wallace, he introduced his scientific theory that this branching pattern of evolution resulted from a process that he called natural selection, in which the struggle for existence has a similar effect to the artificial selection involved in selective breeding. Darwin has been described as one of the most influential figures in human history, and he was honoured by burial in Westminster Abbey.

<i>Principles of Geology</i> 1830-1833 book by Charles Lyell

Principles of Geology: being an attempt to explain the former changes of the Earth's surface, by reference to causes now in operation is a book by the Scottish geologist Charles Lyell that was first published in 3 volumes from 1830–1833. Lyell used the theory of Uniformitarianism to describe how the Earth's surface was changing over time. This theory was in direct contrast to the geological theory of Catastrophism. Many individuals believed in catastrophism to allow room for religious beliefs. For example, Noah's Flood could be described thus as a real geological event as catastrophism describes the changing of the Earth surface as one-time, violent events. Lyell challenged the believers of the catastrophic theory by studying Mount Etna in Sicily and describing the changes from one stratum to another and the fossil records within the rocks to posture that slow, gradual changes as the cause of the ever-changing Earth's surface. Lyell used geological observation to interpret that the Earth was older than 6,000 years, as otherwise contested. The book presents that the processes that are occurring in the present are the same processes that occurred in the past.

Introduction to evolution non-technical overview of the subject of biological evolution

Evolution is the process of change in all forms of life over generations, and evolutionary biology is the study of how evolution occurs. Biological populations evolve through genetic changes that correspond to changes in the organisms' observable traits. Genetic changes include mutations, which are caused by damage or replication errors in organisms' DNA. As the genetic variation of a population drifts randomly over generations, natural selection gradually leads traits to become more or less common based on the relative reproductive success of organisms with those traits.

History of evolutionary thought The history of evolutionary thought in biology

Evolutionary thought, the recognition that species change over time and the perceived understanding of how such processes work, has roots in antiquity—in the ideas of the ancient Greeks, Romans, and Chinese as well as in medieval Islamic science. With the beginnings of modern biological taxonomy in the late 17th century, two opposed ideas influenced Western biological thinking: essentialism, the belief that every species has essential characteristics that are unalterable, a concept which had developed from medieval Aristotelian metaphysics, and that fit well with natural theology; and the development of the new anti-Aristotelian approach to modern science: as the Enlightenment progressed, evolutionary cosmology and the mechanical philosophy spread from the physical sciences to natural history. Naturalists began to focus on the variability of species; the emergence of paleontology with the concept of extinction further undermined static views of nature. In the early 19th century Jean-Baptiste Lamarck (1744–1829) proposed his theory of the transmutation of species, the first fully formed theory of evolution.


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New creation Baronet
(of Kinnordy)