The Age of Wonder

by Richard Holmes

  ♣ Carl Linnaeus (1707-78) emphatically rejected evolution. His ‘systematics’ revealed no connecting law of growth or change, as would the transformational notion explored by several later botanists until Gregor Mendel (1822-84), patiently studying generation after generation of garden peas, gave rigour to the science of genetics. Coleridge pointed to this difference between an organising taxonomy and a dynamic scientific principle or law in essays in The Friend (1819). The psychology of collecting, ordering and naming specimens could also be seen as a form of mental colonising and empire-building. ‘Taxonomy after all, is a form of imperialism. During the nineteenth century, when British naval surveys were flooding London with specimens to be classified, inserting them in their proper niches in the Linnaean hierarchy, had undeniable political overtones. Take a bird or a lizard or a flower from Patagonia or the South Seas, perhaps one that had had a local name for centuries, rechristen it with a Latin binomial, and presto! It had become a tiny British colony.’ Anne Fadiman, ‘Collecting Nature’, in At Large and at Small (2007), p.19.

  ♣ It has been conservatively calculated that Banks’s correspondence ran to over 50,000 items, though these are still widely scattered in archives in Britain, America, Australia and New Zealand. See the Joseph Banks Archive Project on the Internet. There have been various recent selected editions of his correspondence. These include The Selected Letters of Joseph Banks (2000) and the superb new edition The Scientific Correspondence of Sir Joseph Banks, 1765-1820, in six volumes (2007), both edited by Neil Chambers.

  ♣ Literally a Paradise Lost, in the sense that venereal disease, alcohol and Christianity had combined by the early nineteenth century to destroy the traditional social structures of Tahiti and to transform its ‘pagan’ innocence forever. The London Missionary Society, founded in 1810, instructed its Tahitian missionaries to ‘cultivate the tenderest Compassion for the wretched condition of the Heathen, while you see them led captive to Satan at his Will. Do not resent their abominations as affronts to yourselves, but mourn over them as offensive to God.’ Charles Darwin visited Tahiti on his way back from the Galapagos islands in November 1835, and later called it ‘Otaheite, that fallen Paradise!’ Alan Moorehead, The Fatal Impact (1966).

  2

  Herschel on the Moon

  1

  Shortly after his election as President of the Royal Society in 1778, Joseph Banks began to hear rumours of an unusually gifted amateur astronomer working away on his own in the West Country. These rumours first reached him through the Society’s official Secretary, Sir William Watson, whose brilliant and unconventional son, a young physician based in Somerset, was a moving spirit behind the newly founded Bath Philosophical Society. Watson (junior) began sending accounts to his father of a strange maverick who owned enormously powerful telescopes (supposedly built by himself), and was making extravagant claims about the moon.

  The initial reports that reached Banks were strange and somewhat sketchy. The man was called Wilhelm Hershell or William Herschel, possibly a German Jew from Dresden or Hanover.1 One winter night in 1779 young Watson had found this Herschel in Bath, standing alone in a cobbled backstreet, viewing the moon through a large telescope. Though tall and well-dressed, and wearing his hair powdered, he was clearly an eccentric. He spoke with a strong German accent, and had no manservant accompanying him. Watson asked if he might take a look through the instrument, which he noticed was a reflector telescope, not the usual refractor used by amateurs. It was large — seven feet long — and mounted on an ingenious folding wooden frame. The whole thing was evidently home-made. To his surprise he found its resolution was better than any other telescope he had ever used. He had never seen the moon so clearly.2

  They fell into slightly halting conversation. Watson was immediately taken by Herschel’s humorous and modest manner, and soon realised that it disguised an acute unconventional intelligence. Herschel’s knowledge of astronomy, though obviously self-taught, was impressive. Though he had no university education, and said he had very little mathematics, he had mastered John Flamsteed’s great atlas of the constellations, read the textbooks of Robert Smith and James Ferguson, and knew a great deal about French astronomy. Above all he knew about the construction of telescopes, and the making of specula – mirrors. Though in his early forties, he talked of the stars with a quick, boyish enthusiasm, that betrayed intense and almost unnerving passion. Watson was so struck that he asked if he might call round to see him the very next morning.

  The house at 19 Rivers Street, in the lower, unfashionable section of Bath, was modest, and clearly Herschel was not a gentleman of leisure. The lower rooms were cluttered with astronomical equipment, but the front parlour was dominated by a harpsichord and piled high with musical scores.3 It emerged that Herschel was a professional musician, held the post of organist at the Bath Octagon Chapel, and made ends meet by giving music lessons. He also composed, and was fascinated by the theory of musical harmony. His domestic situation was odd. He was poor, and unmarried, but Watson noticed that he spoke tenderly of a sister, who was not only his housekeeper but also his ‘astronomical assistant’.4

  Watson invited his new acquaintance to join the Bath Philosophical Society. Herschel responded with alacrity. Though hesitant to speak in public, he started submitting papers through Watson. Many of them were strange ventures into speculative cosmology and the philosophy of science. They included such subjects as ‘What becomes of Light?’, ‘On the Electrical Fluid’ and ‘On the Existence of Space’.5

  Proud of his new discovery, Watson sent what he considered the best of these early papers to his father, Sir William, at the Royal Society in London. Herschel was modestly worried that his English would not be up to the mark, and Watson tactfully corrected each paper. It was not their plain literary style, however, which caused controversy, but their content. The very first of them, ‘Observations on the Mountains of the Moon’, was so unconventional that it caused an unaccustomed stir when it was published in the Society’s august journal Philosophical Transactions in spring 1780. In it Herschel claimed that with his home-made telescopes he had observed ‘forests’ on the lunar surface, and that the moon was ‘in all probability’ inhabited.

  Nevil Maskelyne, the Astronomer Royal and leading cosmological light of the Royal Society, was more than a little outraged by these apparently absurd claims. He had himself established that the moon had no life-sustaining atmosphere, based on the sharpness with which it occults starlight at its edge.6 But he was intrigued by the minute detail of Herschel’s observational sketches of the moon’s surface, and the apparently fantastic power of his reflector telescope. He wrote a challenging letter to Watson in Bath, questioning the seriousness of Herschel’s work, and his views on the moon. It was now that Joseph Banks, always on the lookout for new and unusual scientific talent, began to pay attention.

  Watson forwarded what he tactfully called ‘Dr Maskelyne’s extremely obliging letter’ to Herschel. Clearly anxious that Herschel might take offence at the implied criticism, he urged a diplomatic response in a covering note of 5 June 1780: ‘I think you would do right (pardon my giving you advice) either to add the desired improvements, or to write over again the Paper, and send it to Dr Maskelyne, who, as he is Astronomer Royal, will be pleased, I believe, with the compliment paid him, and he will present it anew to the Society.’7

  To his relief, Herschel wrote back to the Astronomer Royal with apparent modesty on 12 June: ‘I beg leave to observe Sir, that my saying that there is an absolute certainty of the Moon’s being inhabited, may perhaps be ascribed to a certain Enthusiasm which an observer, but young in the Science of Astronomy, can hardly divest himself of when he sees such Wonders before him. And if you promise not to call me a Lunatic I will transcribe a passage from some observations begun 18 months ago, which will show my real sentiments on the subject.’8

  The views that Herschel now expressed must have taken Maskelyne aback. Far from retracting his opinions, he emphasised his belief that �
��from analogy’ with the earth, and its likely conditions of heat, light and soil, the moon was ‘beyond doubt’ inhabited by life ‘of some kind or other’. Even more provocatively, he thought that the terrestrial view of matters gave undue importance to the earth. ‘When we call the Earth by way of distinction a planet and the Moon a satellite, we should consider whether we do not, in a certain sense, mistake the matter. Perhaps — and not unlikely — the Moon is the planet and the Earth the satellite! Are we not a larger moon to the Moon, than she is to us? … What a glorious view of the heavens from the Moon! How beautifully diversified with [her] hills and valleys! … Do not all the elements seem at war here, when we compare the earth with the Moon?’

  That Herschel was writing somewhat mischievously to the Astronomer Royal becomes clear towards the end of his letter. Poetry gently creeps up on astronomy: ‘The Earth acts the part of a Carriage, a heavenly waggon to carry about the more delicate Moon, to whom it is destined to give a glorious light in the absence of the Sun. Whereas we, as it were, travel on foot and have but a small lamp to give us light in our dark nights, and that too often extinguished by clouds.’ The teasing wit in Herschel’s final sally was unmistakeable: ‘For my part, were I to choose between the Earth and the Moon, I should not hesitate a moment to fix upon the Moon for my habitation!’9

  Maskelyne could not overlook this, and promptly visited Herschel in Bath, accompanied by Banks’s new Secretary and confidant at the Royal Society, Dr Charles Blagden. The visit seems to have been somewhat stormy. They cross-questioned Herschel in a challenging manner, but reported back to Banks that they were strangely impressed, especially by Herschel’s beautiful home-made telescopes, of which there were several. There was also the unusual matter of the sister, a small, shy, tongue-tied young woman who seemed as mad about astronomy as her brother. Her name was Caroline. There was however no reason to believe that the Herschels would achieve anything particularly original in astronomy. They were provincials, émigrés, and poor self-taught enthusiasts.

  Unknown to Maskelyne, the tongue-tied Caroline Herschel had made her own brief note of this visitation from the great men of the metropolis. The ‘long conversation’ which Dr Maskelyne held with her brother William got nowhere, and to her ‘sounded more like quarrelling’. Immediately Dr Maskelyne left the house her brother burst out laughing and exclaimed: ‘That is a devil of a fellow!’10

  Less than a year later, in March 1781, Banks was amazed to hear that William Herschel was about to revolutionise the entire world of Western astronomy. He had achieved — or possibly achieved — something that had not been done since the days of Pythagoras and the Ancient Greek astronomers. Herschel had discovered what was perhaps a new planet. If so, he had changed not only the solar system, but revolutionised the way men of science thought about its stability and creation.

  2

  William Herschel was born in Hanover on 15 November 1738, and his younger sister Caroline twelve years later, on 16 March 1750. Their passion for observational astronomy came absolutely to rule both their lives, although in very different ways. At its height, in the 1780s, brother and sister spent night after night, month after month, summer and especially winter, alone but together in the open air, under a changing canopy of stars and planets. Their minutely recorded telescope observations, published in over a hundred papers by the Royal Society, would change not only the public conception of the solar system, but of the whole Milky Way galaxy and the structure and meaning of the universe itself.

  Herschel and his sister were deeply attached from childhood, and most of what is known about William’s life is drawn from Caroline’s affectionate but troubled journal or day book, which she later turned into a memoir. She once wrote: ‘If I should leave off making memorandums of such events as affect, or are interesting to me, I should feel like — what I am, namely, a person that has nothing more to do in this world.’11 ♣

  William was well into his thirties when astronomy began to take over his existence. The Herschel family concern over several generations had been music, not stargazing. In mid-eighteenth-century Germany — then a series of city states — the profession of music — playing, singing, composing, and teaching — was as socially important as those of the law, the army or the Church. Each city court and most military regiments had their own orchestras, and those of Hanover had some of the most renowned in Europe. Their fame spread especially after the Elector of Hanover became George I of England in 1715, and composers such as Handel achieved Europe-wide status.

  William and Caroline’s father, Isaac, was a military bandsman with the Hanover Foot Guards. His own father had been a landscape gardener near Magdeburg in Saxony who had an amateur interest in the oboe, but who died when Isaac was only eleven. Isaac, virtually an orphan, and without proper education, also began life as a gardener on various aristocratic Prussian estates. But at twenty-one, in his own words, he ‘lost all interest in horticulture’, found he had a natural ear for music, and ‘worked day and night to become an oboe player’. Despite advice from his elder brother to stick to gardening, he could ‘no longer resist the desire to make music and to travel’, and drifted first to Potsdam, then to Brunswick (‘too Prussian for me’), and finally to Hanover, where the atmosphere was more liberal.12 The Elector of Hanover was now George II of England, and more easy-going English manners were acceptable. In August 1831 Isaac joined the Hanover military band, a happy career choice which allowed him considerable freedom, until he was caught up in the Anglo-German campaigns against the French which swept mid-eighteenth-century Europe.13

  At twenty-five Isaac fell in love with a local girl, Anna Moritzen, who came from a village just outside Hanover. She was a beautiful creature, but completely illiterate. They might not have married except that Anna got pregnant, and Isaac proved himself a man of honour. Anna later said prettily that Isaac dropped into her life ‘as if from a cloud’.14 They steadily produced one child every two years for the next twenty years — but though ten children were born only six survived, a cause of much grief. Anna adored her first-born, Jacob, above all else, and indulged him extravagantly; she also loved her first daughter, Sophie, the beauty of the family. With the remaining children she was more severe, especially with her youngest and least promising daughter, Caroline.

  Anna always seemed to be struggling to control the large, unruly family during Isaac’s frequent absences with his regiment. She tried to inculcate traditional German virtues: discipline, craftsmanship, thrift and family loyalty. She had no patience with ‘book-learning’, especially as far as her daughters were concerned. However, she accepted Isaac’s ambition ‘to make all his sons complete musicians’, which she saw as a path to fame and money. One of William’s earliest memories was of being given a tiny violin which his father had made for him, and being taught to play almost before he could hold it to his shoulder.15

  Jacob was quickly established as ‘the genius’ of the family: a superb solo musician from childhood, handsome but vain and volatile, having the true ‘artistic temperament’. William was quieter and steadier, more determined in his lessons, thoughtful and genial, a great reader. Caroline mostly remembered her mother’s severity, and how her eldest brother and sister, Jacob and Sophie, were by contrast petted and indulged.

  Possibly Isaac also found his wife Anna a little ‘too Prussian’. There was something dreamy, almost unworldly, about Isaac Herschel. Alongside his music-making, it is evident that he had a certain metaphysical approach to the world. He had little formal education, but for that very reason his interests were wide and passionately pursued: they included instrument-making, reading philosophy and practising amateur astronomy. It was a combination very characteristic of the culture of Enlightenment Germany, at a time when its greatest philosopher, the young Immanuel Kant, was also a craftsman and lens-grinder. Isaac was a natural teacher, patient and good-humoured; while Anna was quick-tempered, opinionated and scornful of what she regarded as bookishness.

  Caroline remembered h
er father taking her out into the street to see the winter stars on a clear, frosty night, ‘to make me acquainted with the most beautiful constellations, after we had been gazing at a comet which was then visible’.16 Perhaps this stayed in her mind, because finding comets would later become her particular passion. She also recalled being shown an eclipse of the sun, safely viewing it reflected in a bucket of water.17 She added admiringly that her father loved helping William with his studies, and was particularly delighted with his ‘various contrivances’ – by which she meant his scientific models. (Her phrasing, like her accent, remained pleasingly Germanic to the end of her life.) Among these she particularly remembered a shining, neatly turned four-inch brass globe, ‘upon which the equator and ecliptic were engraved by my brother’, an object of childish wonder and admiration to her. This was an early sign of William’s extraordinary manual skills, which she came to worship.18 Her own secret desire was to become a concert singer, but she dared tell no one about this except William.

  3

  Perhaps the moments of paternal care were remembered because they were rare. Isaac was often away on campaign, and Anna ran the noisy, chaotic household as the growing family moved from apartment to apartment in Hanover, depending on their financial circumstances. There was great sibling rivalry. The bond between William and Caroline was strengthened by their vain and bullying brother Jacob, who as his mother’s darling had become spoilt and domineering. There was also the unhappy elder sister Sophie, whose beauty led to an early marriage with a ‘cruel and extravagant’ husband which turned out to be a disaster.19 Caroline — who was small and impish — claimed she was frequently whipped for disobedience both by her mother and by Jacob, starved for food, and treated as a scullion. Similarly, she said William had been endlessly teased by Jacob for his outstanding work at the garrison school in Latin, Greek, French and mathematics. He also mocked his model-making abilities. Jacob took nothing seriously but ‘the science of music’, in which he already considered himself (rightly) a virtuoso.20