Famous Men of Science Part 18

And yet Lyell, like most students, found it a difficult matter to decide what was best for a life-pursuit. His father wished him to study law. In reply, the son says: "As for the confidence and quickness which you were speaking of, as one of the chief requisites of the Bar, I don't know whether intercourse with the world will supply it, but G.o.d knows, I have little enough of it now in company."

During his college course, Lyell made a journey with some friends to Staffa, and wrote a poem upon the place, and then, with his parents and his eldest sisters, travelled in France, Switzerland, and Italy. Here, in the midst of art and beautiful scenery, his mind still turned toward science. He thought the collections in comparative anatomy in the Jardin des Plantes, in Paris, would tempt any one to "take up ardently the study of anatomy." In Cuvier's lecture-room, filled with fossil remains, he found "three glorious relics of a former world, which have added several new genera to the Mammalia."

In the Jura chain he concluded the limestone to be "of a different age from what we pa.s.sed through before Dijon, for the latter abounded in organic remains, whereas I could not discover one fossil in the Jura. By the roadside I picked up many beautiful petrifactions, which must be forming daily here, where the water is charged plentifully with lime."

"The rock of the Col de Balme," he said, "is a brown, ligneous slate, with some veins of white quartz intersecting it: the appearance is very curious. On the top was the richest carpet of turf I ever saw, spangled with thousands of the deep blue gentian, red trefoil, and other mountain flowers." Nothing said about law, but much about rocks!

At twenty-two Lyell graduated from Oxford. The same year he became a Fellow of the Geological Society of London, and also of the Linnaean Society, and, in accordance with his father's preference, began the study of law in London.

But the way to success is almost never easy. Lyell's eyes became very weak, and he was obliged to desist from reading, and go to Rome with his father. Many a young man, well-to-do, would have given up a profession, preferring a life of leisure. Not so Charles Lyell. On his return he inspected Romney Marsh, an extensive tract of land, formerly covered by the sea, and also the Isle of Wight, and wrote his first scientific paper on the geology of some rivers near his native place in Forfarshire. At twenty-six he was made secretary of the Geological Society. Already such men as Dr. Buckland felt the deepest interest in the enterprising young student, who was devoting himself to original research.

And now he was going to Paris, to perfect himself in French. Dr.

Buckland and others gave him letters of introduction to such persons as Humboldt and Cuvier. Fortunate young Lyell! Such men would fan the flame of aspiration to a white heat.

Once in Paris, the stimulus of great minds did its accustomed work--developed and beautified another mind. He attended a levee at Alexander Brongniart's, "who among the English geologists has the highest reputation both for knowledge and agreeable manners of all the French _savans_," he wrote home to his father. Again he wrote: "My reception at Cuvier's last Sat.u.r.day will make me feel myself at liberty to attend his _soirees_ next week, and they are a great treat. He was very polite, and invited me to attend the Inst.i.tute on Monday. There he introduced me to several geologists, and put me in an excellent place for hearing....

"Humboldt addressed me, as Duvau had done, with, 'I have the honor of being familiar with your name, as your father has labored with no small success in botany, particularly the cryptogamiae....' He was not a little interested in hearing me detail the critiques which our geologists have made on his last geological work,--a work which would give him a rank in science if he had never published aught besides. He made me a present of his work, and I was surprised to find how much he has investigated the details of our English strata.... He appears to work hard at astronomy, and lives in a garret for the sake of that study. The King of Prussia invited him to adorn his court at the last Congress; thence he went to Vesuvius just after the grand eruption, and brought away much geological information on that head, which he was good enough to communicate to me. He speaks English well. I attend lectures at the Jardin du Roi, on mining, geology, chemistry, and zoology, all gratis! by the first men.... I have promised Humboldt to pa.s.s the afternoon to-day in his study. His new edition serves as a famous lesson to me, in the comparison of England and the Continent. There are few heroes who lose so little by being approached as Humboldt."

Who shall estimate the value of such a friendship to a young man! It was a foregone conclusion that Lyell and Aga.s.siz and Liebig, and others, who sought the society of such as Humboldt, and were _willing to work_, would come to greatness.

Cuvier introduced Lyell to Professor Van Breda of Ghent, who gave him letters to all the Dutch universities,--Ghent, Amsterdam, Haarlem, and Leyden.

The next year, 1824, Lyell made a geological tour with M. Constant Prevost, a noted French geologist, from London to Bristol and Land's End, and with Dr. Buckland, in Scotland, where they dined with the far-famed Francis Jeffrey, editor of the "Edinburgh Review." Lyell's eyes still troubled him so that he could scarcely write letters home; but he was laying up a store of knowledge from which the world was to profit in a few years.

In 1825, his eyes having improved, he resumed his law study, and was admitted to the bar. But he could not give up geological work, and published several papers,--one on a dike of serpentine, another on sh.e.l.l marl and fossil fruit, and others on plastic clay in Hampshire and the fresh-water strata of Hants. He had been made a Fellow of the Royal Society at twenty-nine, and was one of the writers in the "Quarterly Review."

The law work went on, but it was easy to see where his heart was. He wrote a friend that he had been "devouring" Lamarck: "That the earth is quite as old as he supposes has long been my creed, and I will try before six months are over to convert the readers of the 'Quarterly' to that heterodox opinion.... Buckland has got a letter from India about modern hyaenas, whose manners, habitations, diet, etc., are everything he could wish, and as much as could be expected had they attended regularly three courses of his lectures."

At thirty-one Lyell had made up his mind "that there is most real independence in that cla.s.s of society who, possessing moderate means, are engaged in literary and scientific hobbies;" he had given up the law, and planned the book that was to make him famous--"Principles of Geology." He travelled now extensively in Italy and France, studying volcanoes, glaciers, and fossils. At Auvergne, he began work with his dear friend Murchison at six o'clock in the morning, "and neither heat nor fatigue has stopped us an hour," he writes to his parents. "I have really gained strength so much, that I believe that I and my eyes were never in such a condition before; and I am sure that six hours in bed, which is all we allow, and exercise all day long for the body, and geology for the mind, ... is the best thing that can be invented in this world for my health and happiness."

Eighteen hours of labor daily, and yet he was happy! He had found his life-work now. To a sister he writes about the beetles at Aix. He cannot be laughed out of this study as when a boy. He has been to Parma, to see Professor Guidotti's "finest collection of fossil-sh.e.l.ls in Italy, ...

spending three days, from six o'clock in the morning till night, exchanging our respective commodities."

To his sisters he writes all his discoveries in rocks and fossils, with the enthusiasm of a boy. "I rode to the upper Val d'Arno,--a famous day for me,--an old lacustrine deposit, corresponding delightfully with our Angus lakes in all but age and _species_ of animals; same genera of sh.e.l.ls. They have just extracted the fortieth skeleton of hippopotamus; have got about twenty elephants, one or two mastodons, a rhinoceros and stags, and oxen out of number.... At Rome I found the geology of the city itself exceedingly interesting. The celebrated seven hills, of which you have read, and which in fact are nine, are caused by the Tiber and some tributaries, which have cut open valleys almost entirely through volcanic ejected matter, covered by travertine containing lacustrine sh.e.l.ls."

He made the ascent of Etna, and sketched the crater. "Inside the crater, near the lip, were huge ma.s.ses of ice, between which and the scoriae and lava of the crater issued hot sulphurous vapors, which I breathed in copiously; and for six hours after I could not, even after eating and drinking, get the horrid taste out of my mouth, for my lungs had got full of it. The wind was so high, that the guide held my hat while I drew; but though the head was cold, my feet got so hot in the cinders, that I was often alarmed that my boots would be burnt."

In 1830, the first volume of "Principles of Geology, being an Attempt to Explain the Former Changes of the Earth's Surface by Reference to Causes now in Operation," was published. "It will not pretend," he wrote to Murchison, "to give even an abstract of all that is known in geology, but it will endeavor to establish the _principles_ of _reasoning_ in the science; and all my geology will come in as ill.u.s.tration of my views of those principles, and as evidence strengthening the system necessarily arising out of the admission of such principles, which, as you know, are neither more nor less than that _no causes whatever_ have from the earliest time to which we can look back, to the present, ever acted, but those _now acting_.... I must go to Germany.... Their language must be learnt; the places to which their memoirs relate, visited; and then you may see, as I may, to what extent we may indulge dreams of eminence, at least as original observers." He, too, like all the other great ones, indulged in "dreams of eminence." Did ever man or woman achieve anything worthy without these dreams?

He had worked earnestly upon the "Principles," which showed wonderful research, study, and thought. He said, "The facts which are given in a few sentences require weeks of reading to obtain.... By the aid of a good amanuensis, my eyes hold out well."

The sale of the book was large and satisfactory. It was, of course, opposed, from its advanced views as to the age of the world, but Lyell wisely made no reply. He said, "I have sworn to myself that I will not go to the expense of giving time to combat in controversy. It is an interminable work." A great lesson, learned early.

In 1831 he visited Germany. Now he wrote home not only to his family, but to another, who was hereafter to brighten and beautify his life--Mary Horner, the daughter of a prominent scientist. To great personal beauty she added unusual mental ability. Wise man indeed was Charles Lyell to have known, what some fail to know beforehand, that intellect demands intellect for the best companionship.

He wrote to her: "I am sure you will work at it" (the German language) "with more zeal if you believe you can help me by it, as I labor with greater spirit, now that I regard myself as employed for you as well as for myself. Not that I am at all sanguine about the pecuniary profits that I shall ever reap, but I feel that if I could have fair play for the next ten years, I could gain a reputation that would make a moderate income for the latter part of my life, yield me a command of society, and a respect that would ent.i.tle me to rest a little on my oars, and enable me to help somewhat those I love.... As to geology having _half_ of my heart, I hope I shall be able to give my _whole_ soul to it, with that enthusiasm by which alone any advance can be made in any science, or, indeed, in any profession."

In 1832 Lyell was made professor of geology in King's College, London, which position he resigned later, because he wished "the power of commanding _time_ to increase his knowledge and fame." This year also, July 12, when he was thirty-five, he was married to Mary Horner, and made a tour up the valley of the Rhine.

The earnest life was now more earnest and busy than ever. He said, "I am never so happy as when, at the end of a week, I feel I have employed every day in a manner that will tell to the rest of my life." Would that all of us could live after so n.o.ble a plan!

"Unless I can feel that I am working to some decided end, such as that of fame, money, or partly both, I cannot be quite happy, or cannot feel a stimulus to that strenuous application without which I should not remain content." He had learned what "strenuous application" means, and knew that there is no success without it. When congratulated by his friends "in not looking older for his hard work," he said, "The way to do much and not grow old is, to be moderate in not going out, to work a few hours, or half-hours, at a time, ... and to go to bed at eleven o'clock." He would not accept many invitations socially. "A man should have some severity of character, and be able to refuse invitations, etc.," he said. "The fact is, that to become great in science, a man must be nearly as devoted as a lawyer, and must have more than mere talent.... I think I never do so much as when I have fought a battle not to go out." Those who have written books will appreciate this statement, and recall the many days when they have closed the shutters and worked, though they longed to be out-of-doors in the sunlight.

In 1833, the year after his marriage, he gave by invitation a course of seven lectures before the Royal Inst.i.tution, a high honor. In 1834, he pa.s.sed several months in Sweden, and wrote back to his "dearest Mary,"--"I have been ten hours without a word with my love, but thinking of her more than half the time, and comforting myself that she is less alone than I am." ... He kept a journal for her of his daily work.

"It is now twenty-five days that we have been separated, and I have often thought of what you said, that the active occupation in which I should constantly be engaged would give me a great advantage over you. I trust, however, that you also have been actively employed. At leisure moments I have done some things towards planning my next volume. It will be necessary for us to have a work together at fossils at Kinnordy, first, and then in town, and then in Paris." Thus fully had the young wife entered into his studies.

In 1835, having received the gold medal of the Royal Society, for his "Principles of Geology,"--now in its fourth edition, which Sir John Herschel said he had read three times,--he was elected president of the Geological Society of London, and made extensive researches in Switzerland, Germany, and Scotland.

In 1841, already famous as well as beloved, Lyell was invited to give twelve lectures before the Lowell Inst.i.tute, in Boston. He and his wife spent thirteen months in the United States, studying the country geologically; its social life, its politics, and our benevolent and educational inst.i.tutions. Between two and three thousand persons came, both morning and evening, to listen to the distinguished scholar, who had travelled almost the world over to study his beloved science.

Close friendships were formed with some of our most prominent men, like Prescott and Ticknor. Lyell visited the great lakes, and compared the supposed ancient boundaries of Lake Ontario, when it was one hundred and fifty feet higher, with its present sh.o.r.e. He made a careful study of Niagara Falls, which cuts its deep gorge toward Lake Ontario, for seven miles, and estimated that it wore away a foot a year. If so, he argued that at least thirty-five thousand years have pa.s.sed since the river began to cut its pa.s.sage between the high rocky walls. "What would I give," said Lyell, "for a daguerrotype of the scene as it was four thousand, and again forty thousand years ago! Even four centuries would have been very important." Authorities differ as to the rate of the recession of the falls. Some estimate an inch instead of a foot yearly, requiring a period of more than four hundred thousand years.

In 1845, Lyell published his "Travels in North America, with Geological Observations," and in September of the same year, returned again to our country, spending nine months in travel and study, and bringing out later, in 1849, his "Second Visit to the United States of North America."

Already his "Elements of Geology" had appeared, which went through several editions. A seventh edition of the "Principles" had been published. He had also been knighted by the Queen, for his rare scholarship. Honored at home and abroad, working ardently and earnestly, often with failing sight, he had already won for himself the eminence of which he had dared to dream years before.

Of course he was welcomed at all great gatherings. Macaulay and Hallam, Milmore and Mrs. Somerville, Rogers, and scores of others were often at his home.

In 1851, he was appointed one of the Royal Commissioners for the first Great Exhibition held in Hyde Park, London, and a year later gave a second course of lectures at the Lowell Inst.i.tute, Boston. So kindly and cordially had he written concerning us and our country, that he received the heartiest welcome. He had carried out in his life what he wrote to beautiful Mary Horner, twenty years before: "I hope we shall both of us contrive to cultivate a disposition--which David Hume said was better than a fortune of one thousand pounds a year--to look on the bright side of things. I think I shall, and I believe you will." The sweet-natured and great-minded man had looked on the bright side of America, and seen the good rather than the evil. He believed in our future. When Prescott died, to whom he was devotedly attached, he said: "From such a soil and in such an atmosphere, great literary men must continue to spring up."

All through our Civil War, he had known and loved us so well, that he was, like John Bright, our constant advocate. He deprecated the course of some of the English newspapers. "The integrity of the empire," he said, "and the non-extension and for the last two years the extinction of slavery const.i.tute to my mind better grounds for a protracted struggle than those for which any war in our time, perhaps in all history, has been waged.... I am in hopes that the struggle in America will rid the country in the course of twenty years of that great curse to the whites, slave labor, and, if so, it may be worth all it will cost in blood and treasure...."

"Had the States been dismembered, there would have been endless wars, more activity than ever in breeding slaves in America, and a renewal of the African slave-trade, and the future course of civilization r.e.t.a.r.ded in that continent in a degree which would not, in my judgment, be counterbalanced by any adequate advantage which Europe would gain by the United States becoming relatively less strong.... I believe that if a small number of our statesmen had seen what I had seen of America, they would not have allowed their wishes for dismemberment to have bia.s.sed their judgment of the issue so much."

In 1853, at the request of his government, he came to New York, as one of the commissioners to the International Exhibition. Of course, now, wherever he travelled, either in Europe or America, he met the distinguished, and was honored by them. He was the friend of Berzelius, the noted chemist of Sweden, and of the great Liebig of Germany.

Professor Bunsen of Heidelberg said, that all his taste for geology had been derived from Lyell's books.

During the next few years, he was much in Holland, France, and Germany, preparing for the publication of another great work in 1863, the "Antiquity of Man." He had made a careful study of the ancient Swiss Lake-dwellings, erected on piles in the midst of the water, connected with the land by bridges. On Lake Neuchatel it is estimated that there were more than forty such circular houses. At w.a.n.gen, near Stein, on Lake Constance, it is believed forty thousand piles were used. Some five thousand objects have been found, comprising flax, not woven, but plaited; carbonized wheat, and the bones of the dog, ox, sheep, and goat. The arrow-heads, hatchets, and the like, belong to the stone age, which geologists place, at the least, seven thousand years ago. At Zurich one human skull was found belonging to this early stone age. No traveller should pa.s.s through Zurich without seeing these memorials of a people who lived in the dawn of civilization, when the world was being made ready for the more perfect man.

Lyell had studied also the Danish "kitchen-middens," familiar to those who have been carefully over the museums at Copenhagen. These sh.e.l.l-mounds, the refuse heaps of this ancient race, are sometimes one thousand feet long and two hundred wide. As far back as the time of the Romans the Danish isles were covered with magnificent beech forests. In the bronze age there were no beech trees, but oaks. In the stone age the Scotch fir prevailed, and thousands of years must have elapsed while these giant forests succeeded each other.

The delta and alluvial plain of the Mississippi Lyell found to consist of sediment covering an area of thirty thousand square miles, several hundred feet deep. Taking the amount deposited annually, it would require from fifty to one hundred thousand years to produce the present deposits.

The coral reefs of Florida, built up at the rate of one foot in a century, each reef adding ten miles to the coast, have required, according to Aga.s.siz, at least one hundred and thirty-five thousand years for building. Human remains in a bluff on the sh.o.r.es of Lake Monroe, in Florida, he shows to be at least ten thousand years old.

Under the streets of Glasgow, Scotland, seventeen canoes have been dug up, one in a vertical position, as if it had sunk in a storm, with the prow uppermost. Twelve canoes one hundred yards back from the river were found nineteen feet beneath the surface. Almost all were single oak trees, hollowed out by blunt tools, probably stone axes, aided by fire, relics of the stone age.

In caverns near Liege, France, human bones have been found, with the cave-bear, elephant, rhinoceros, and other species now extinct. Skulls found in these primeval caves, especially one near Dusseldorf, called the "Neanderthal," "is the most brutal of all known human skulls, resembling those of the apes." These rude men probably were living at the same time, or even later, than the makers of the "refuse heaps" of Denmark.

Wales has been under the sea to the depth of fourteen hundred feet, as proved by glacial sh.e.l.ls; its submergence and reelevation would require, by careful computation, about two hundred and twenty-four thousand years.

Lyell showed that the Alps, Andes, and Himalaya Mountains were all elaborated under water. "The Alps have acquired four thousand, and even, in some places, more than ten thousand feet of their present alt.i.tude since the commencement of the Eocene (dawn of recent) period.... It is not too much to say that every spot which is now dry land has been sea at some former period, and every part of the s.p.a.ce now covered by the deepest ocean has been land. The present distribution of land and water encourages us to believe that almost every conceivable transformation in the external form of the earth's crust may have been gone through. In one epoch the land may have been chiefly equatorial; in another, for the most part polar and circ.u.mpolar."

Lyell showed also the great age of the world by the changes which have taken place in climate. In Greenland are a mult.i.tude of fossil plants, which show that it formerly enjoyed a mild and genial climate. Fossil tulip and walnut trees have been found within the Arctic circle.

"On the North American continent, between the Arctic circle and the forty-second parallel of lat.i.tude," said Lyell, "we meet with signs of ice-action on a scale as grand, if not grander than in Europe." The drift covered from the Atlantic border of New England and Labrador westward to Dakota and Lake Winnipeg, and farther north, across the continent. Some stones in this bed of ice were thirty feet square, weighing over four million pounds. Some boulders from the Alps, weighing three thousand tons each, are now found on the Juras. "It must, I think," said Lyell, "be conceded that the period required for the coming-on of the greatest cold, and for its duration when most intense, and the oscillations to which it was subject, as well as the retreat of the glaciers and the 'great thaw,' or disappearance of snow, from many mountain-chains where the snow was once perpetual, required not tens, but hundreds, of thousands of years."

In Arctic Siberia herds of elephants must have roamed, as their bodies, covered with hair and flesh, have been dug up in recent years. Great Britain and Europe have been much warmer than now. Our own immense coal fields show a former tropical climate, with their great tree-ferns and tree-rushes, while the remains of reindeers have been found in Connecticut.