In every form man has pa.s.sed through, he left behind some old member or power and took on some new. He left his air-bladder and his gills and his fins with the fishes; he got his lungs from the dipnoans, the precursors of the amphibians, and from these last he got his four limbs; he left some part of his anatomy with the reptile, and took something in exchange, probably his flexible neck. Somewhere along his line he picked up the four-chambered heart, the warm blood, the placenta, the diaphragm, the plantigrade foot, the mammary glands--indeed, what has he not picked up on the long road of his many transformations? He left some of his superfluous forty-four teeth with his ancestral quadrumana of Eocene times, and kept thirty-two. He picked up his brain somewhere on the road, probably far back in Palaeozoic times, but how has he developed and enlarged it, till it is now the one supreme thing in the world! His fear, his cunning, his anger, his treachery, his hoggishness--all his animal pa.s.sions--he brought with him from his animal ancestors; but his moral and spiritual nature, his altruism, his veneration, his religious emotions, his aesthetic perceptions--have come to him as a man, supplementing his lower nature, as it were, with another order of senses--a finer sight, a finer touch, wrought in him by the discipline of life, and the wonder of the world about him, beginning de novo in him only as the wing began de novo in the bird, or the color began de novo in the flower--struck out from preexisting potentialities. The father of the eye is the light, and the father of the ear is the vibration of the air, but the father of man"s higher nature is a question of quite another sort. About the only thing in his physical make-up that man can call his own is his chin.
None of the orders below him seem to have what can strictly be called a chin.
Man owes his five toes and five fingers to the early amphibians of the sub-carboniferous times. The first tangible evidence of these five toes upon the earth is, to me, very interesting. The earliest record of them that I have heard of is furnished by a slab of shale from Pennsylvania, upon which, while it was yet soft mud, our first five-toed ancestor had left the imprint of his four feet. He was evidently a small, short-legged gentleman with a stride of only about thirteen inches, and he carried a tail instead of a cane. He was probably taking a stroll upon the sh.o.r.es of that vast Mediterranean Sea that occupied all the interior of the continent when he crossed his mud flat. It was raining that morning--how many million years ago?--as we know from the imprint of the raindrops upon the mud. Probably the shower did not cause him to quicken his pace, as amphibians rather like the rain. Just what his immediate forbears were like, or what the forms were that connected him with the fishes, we shall probably never know. Doubtless the great book of the rocky strata somewhere holds the secret, if we are ever lucky enough to open it at the right place. How many other secrets, that evolutionists would like to know, those torn and crumpled leaves hold!
It is something to me to know that it rained that day when our amphibian ancestor ventured out. The weather was beginning to get organized also, and settling down to business. It had got beyond the state of perpetual mist and fog of the earlier ages, and the raindrops were playing their parts. Yet, from all the evidence we have, we infer that the climate was warm and very humid, like that of a greenhouse, and that vegetation, mostly giant ferns and rushes and lycopods, was very rank, but there was no gra.s.s, or moss, no deciduous trees, or flowers, or fruit, as we know these things.
A German anatomist says that we have the vestiges of one hundred and eighty organs which have stuck to us from our animal ancestors,--now useless, or often worse than useless, like the vermiform appendix.
Eleven of these superannuated and obsolete organs we bring from the fishes, four from amphibians and reptiles. The external ear is a vestige--of no use any more. Our dread of snakes we no doubt inherited from our simian ancestors.
How life refined and humanized as time went on, sobered down and became more meditative, keeping step, no doubt, with the amelioration of the soil out of which all life finally comes. Life"s bank account in the soil was constantly increasing; more and more of the inorganic was wrought up into the organic; the value of every clod underfoot was raised. The riot of gigantic forms ceased, and they became ashes. The giant and uncouth vegetation ceased, and left ashes or coal. The beech, the maple, the oak, the olive, the palm came in. The giant sea serpents disappeared; the horse, the ox, the swine, the dog, the quail, the dove came in. The placental mammals developed. The horse grew in size and beauty. When we first come upon his trail, he is a four-hoof-toed animal no larger than a fox.
Later on we find him the size of a sheep with one of his toes gone; still later--many hundred thousand years, no doubt--we find him the size of a donkey, with still fewer toes, and so on till we reach the superb creature we know.
The creative energy seems to have worked in geologic time and in the geologic field just as it works here and now, in yonder vineyard or in yonder marsh,--blindly, experimentally, but persistently and successfully. The winged seeds find their proper soil, because they search in every direction; the climbing vines find their support, because in the same blind way they feel in all directions. Plants and animals and races of men grope their way to new fields, to new powers, to new inventions.
Indeed, how like an inventor Nature has worked, constantly improving her models, adding to and changing as experience would seem to dictate! She has developed her higher and more complex forms as man has developed his printing-press, or steam-engine, from rude, simple beginnings. From the two-chambered heart of the fish she made the treble-chambered heart of the frog, and then the four- chambered heart of the mammal. The first mammary gland had no nipples; the milk oozed out and was licked off by the young. The nipple was a great improvement, as was the power of suckling in the young.
Experimenting and experimenting endlessly, taking a forward step only when compelled by necessity,--this is the way of Nature,--experimenting with eyes, with ears, with teeth, with limbs, with feet, with toes, with wings, with bladders and lungs, with scales and armors, hitting upon the backbone only after long trials with other forms, hitting upon the movable eye only after long ages of other eyes, hitting on the mammal only after long ages of egg-laying vertebrates, hitting on the placenta only recently,--experimenting all around the circle, discarding and inventing, taking ages to perfect the nervous system, ages and ages to develop the centralized ganglia, the brain. First life was like a rabble, a mob, without thought or head, then slowly organization went on, as it were, from family to clan, from clan to tribe, from tribe to nation, or centralized government--the brain of man--all parts duly subordinated and directed,--millions of cells organized and working on different functions to one grand end,--cooperation, fraternization, division of labor, altruism, etc.
The cell was the first invention; it is the unit of life,--a speck of protoplasm with a nucleus. To educate this cell till it could combine with its fellows and form the higher animals seems to have been the aim of the creative energy. First the cell, then combinations of cells, then combinations of combinations, then more and more complex combinations till the body of man is reached, where endless confraternities of cells, all with different functions, working to build and sustain different organs,--brain, heart, liver, muscles, nerves,--yet all working together for one grand end--the body and mind of man. In their last a.n.a.lysis, all made up of the same cells--their combinations and organization making the different forms.
Evolution touches all forms but tarries with few. Many are called but few are chosen--chosen to lead the man-impulse upward. Myriads of forms are left behind, like driftwood caught in the eddies of a current. The clam has always remained a clam, the oyster remained an oyster. The c.o.c.kroach is about the same creature to-day that it was untold aeons ago; so is the shark, and so are many other forms of marine life. Often where old species have gone out and new come in, no progress has been made.
Evolution concentrates along certain lines. The biological tree behaves like another tree, branches die and drop off (species become extinct), others mature and remain, while some central shoot pushes upward. Many of the huge reptilian and mammalian branches perished in comparatively late times.
As nothing is more evident than that the same measure of life or of vital energy--power of growth, power of resistance, power of reproduction--is not meted out equally to all the individuals of a species, or to all species, so it is evident that this power of progressive development is not meted out equally to all races of mankind, or to all of the individuals of the same race. The central impulse of development seems to have come from the East, in historic times at least, and to have followed the line of the Mediterranean, to have culminated in Europe. And this progress has certainly been the work of a few minds--minds exceptionally endowed.
For the most part the barbarian races do not progress. Their exceptional minds or characters do not lead the tribes to higher planes of thought, In all countries we still see these barbarous people which man in his progress has left behind. Our civilization is like a field of light that fades off into shadows and darkness.
There is this margin of undeveloped humanity on all sides. Always has it been so in the animal life of the globe; the higher forms have been pushed up from the lower, and the lower have remained and continued to multiply unchanged.
It seems as if some central and cherished impulse had pushed on through each form, and by successive steps had climbed from height to height, gaining a little here and a little there, intensifying and concentrating as time went on, very vague and diffuse at first, embryonic so to speak, during the first half of the great geologic year, but quickening more and more, differentiating more and more, delayed and defeated many times, no doubt, yet never destroyed, leaving form after form unchanged behind it, till it at last reached its goal in man.
After evolution has done all it can do for us toward solving the mystery of creation, much remains unsolved.
Through evolution we see creation in travail-pains for millions of years to bring forth the varied forms of life as we know them; but the mystery of the inception of this life, and of the origin of the laws that have governed its development, remains. What lies back of it all? Who or what planted the germ of the biological tree, and predetermined all its branches? What determined one branch to eventuate in man, another in the dog, the horse, the bird, or the reptile?
From the finite or human point of view we feel compelled to say some vaster being or intelligence must have had the thought of all these things from the beginning or before the beginning.
It is quite impossible for me to believe that fortuitous variation--variation all around the circle--could have resulted in the evolution of man. There must have been a predetermined tendency to variation in certain directions. To introduce chance into the world is to introduce chaos. No more would the waters of the interiors of the continents find their way to the sea, were there not a slant in that direction, than could haphazard variation, though checked and controlled by natural selection, result in the production of the race of man. This view may be only the outcome of our inevitable anthropomorphism which we cannot escape from, no matter how deep we dive or high we soar.
II
THE DIVINE ABYSS
I
In making the journey to the great Southwest,--Colorado, New Mexico, and Arizona,--if one does not know his geology, he is pretty sure to wish he did, there is so much geology scattered over all these Southwestern landscapes, crying aloud to be read. The book of earthly revelation, as shown by the great science, lies wide open in that land, as it does in few other places on the globe. Its leaves fairly flutter in the wind, and the print is so large that he who runs on the California Limited may read it. Not being able to read it at all, or not taking any interest in it, is like going to Rome or Egypt or Jerusalem, knowing nothing of the history of those lands.
Of course, we have just as much geology in the East and Middle West, but the books are closed and sealed, as it were, by the enormous lapse of time since these portions of the continent became dry land.
The eroding and degrading forces have ages since pa.s.sed the meridian of their day"s work, and gra.s.s and verdure hide their footsteps. But in the great West and Southwest, the G.o.ds of erosion and degradation seem yet in the heat and burden of the day"s toil. Their unfinished landscapes meet the eye on every hand. Many of the mountains look as if they were blocked out but yesterday, and one sees vast naked flood-plains, and painted deserts and bad lands and dry lake-bottoms, that suggest a world yet in the making.
Some force has scalped the hills, ground the mountains, strangled the rivers, channeled the plains, laid bare the succession of geologic ages, stripping off formation after formation like a garment, or cutting away the strata over hundreds of square miles, as we pry a slab from a rock--and has done it all but yesterday. If we break the slab in the prying, and thus secure only part of it, leaving an abrupt jagged edge on the part that remains, we have still a better likeness of the work of these great geologic quarrymen. But other workmen, invisible to our eyes, have carved these jagged edges into novel and beautiful forms.
The East is old, old! the West, with the exception of the Rocky Mountains, is of yesterday in comparison. The Hudson was an ancient river before the Mississippi was born, and the Catskills were being slowly carved from a vast plateau while the rocks that were to form many of the Western ranges were being laid down as sediment in the bottom of the sea. California is yet in her teens, while New England in comparison is an octogenarian. Just as much geology in the East as in the West, did I say? Not as much visible geology, not as much by many chapters of earth history, not as much by all the later formations, by most of the Mesozoic and Tertiary deposits. The vast series of sedimentary rocks since the Carboniferous age, to say nothing of the volcanic, that make up these periods, are largely wanting east of the Mississippi, except in New Jersey and in some of the Gulf States. They are recent. They are like the history of our own period compared with that of Egypt and Judea. It is mainly these later formations--the Permian, the Jura.s.sic, the Tria.s.sic, the Cretaceous, the Eocene,--that give the prevailing features to the South-western landscape that so astonish Eastern eyes. From them come most of the petrified remains of that great army of extinct reptiles and mammals--the three-toed horse, the sabre-toothed tiger, the brontosaurus, the fin-backed lizard, the imperial mammoth, the various dinosaurs, some of them gigantic in form and fearful in aspect--that of late years have appeared in our museums and that throw so much light upon the history of the animal life of the globe. Most of the sedimentary rocks of New York and New England were laid down before these creatures existed.
Now I am not going to write an essay on the geology of the West, for I really have little first-hand knowledge upon that subject, but I would indicate the kind of interest in the country I was most conscious of during my recent trip to the Pacific Coast and beyond.
Indeed, quite a geologic fever raged in me most of the time. The rocks attracted me more than the birds, the sculpturing of the landscapes engaged my attention more than the improvements of the farms--what Nature had done more than what man was doing. The purely scenic aspects of the country are certainly remarkable, and the human aspects interesting, but underneath these things, and striking through them, lies a vast world of time and change that to me is still more remarkable, and still more interesting. I could not look out of the car windows without seeing the spectre of geologic time stalking across the hills and plains.
As one leaves the prairie States and nears the great Southwest, he finds Nature in a new mood--she is dreaming of canyons; both cliffs and soil have canyon stamped upon them, so that your eye, if alert, is slowly prepared for the wonders of rock-carving it is to see on the Colorado. The canyon form seems inherent in soil and rock. The channels of the little streams are canyons, vertical sides of adobe soil, as deep as they are broad, rectangle grooves in the ground.
Through all this arid region nature is abrupt, angular, and sudden--the plain squarely ab.u.t.ting the cliff, the cliff walling the canon; the dry water-course sunk in the plain like a carpenter"s groove into a plank. Cloud and sky look the same as at home, but the earth is a new earth--new geologically, and new in the lines of its landscapes. It seems by the forms she develops that Nature must use tools that she long since discarded in the East. She works as if with the square and the saw and the compa.s.s, and uses implements that cut like chisels and moulding-planes. Right lines, well-defined angles, and tablelike tops of b.u.t.tes and mesas alternate with perfect curves, polished domes, carved needles, and fluted escarpments.
In the features of our older landscapes there is little or nothing that suggests architectural forms or engineering devices; in the Far West one sees such forms and devices everywhere.
In visiting the Petrified Forests in northern Arizona we stood on the edge of a great rolling plain and looked down upon a wide, deeply eroded stretch of country below us that suggested a vast army encampment, covered as it was with great dome-shaped, tent-like mounds of a light terra-cotta color, with open s.p.a.ces like streets or avenues between them. There were hundreds or thousands of these earthy tents stretching away for twenty-five miles. Along the horizon was a gigantic stockade of red, rounded pillars, or a solid line of mosque-like temples. How unreal, how spectral it all seemed!
Not a sound or sign of life in the whole painted solitude--a deserted camp, or one upon which the silence of death had fallen.
Here, in Carboniferous times, grew the gigantic fern-like trees, the Sigillaria and Lepidodendron, whose petrified trunks, for aeons buried beneath the deposit of the Permian seas, and then, during other aeons, slowly uncovered by the gentle action of the eroding rains, we saw scattered on the ground.
You first see Nature beginning to form the canon habit in Colorado and making preliminary studies for her masterpiece, the Grand Canon. Huge square towers and truncated cones and needles and spires break the horizon-lines. Here all her water-courses, wet or dry, are deep grooves in the soil, with striking and pretty carvings and modelings adorning their vertical sides. In the railway cuts you see the same effects--miniature domes and turrets and other canon features carved out by the rains. The soil is ma.s.sive and does not crumble like ours and seek the angle of repose; it gives way in ma.s.ses like a brick wall. It is architectural soil, it seeks approximately the right angle--the level plain or the vertical wall.
It erodes easily under running water, but it does not slide; sand and clay are in such proportions as to make a brittle but not a friable soil.
Before you are out of Colorado, you begin to see these novel architectural features on the horizon-line--the canon turned bottom side up, as it were. In New Mexico, the canon habit of the erosion forces is still more p.r.o.nounced. The mountain-lines are often as architectural in the distance, or arbitrary, as the sky-line of a city. You may see what you half persuade yourself is a huge brick building notching the horizon,--an asylum, a seminary, a hotel,--but it is only a fragment of red sandstone, carved out by wind and rain.
Presently the high colors of the rocks appear--high cliffs with terra-cotta facades, and a new look in the texture of the rocks, a soft, beaming, less frowning expression, and colored as if by the Western sunsets. We are looking upon much younger rocks geologically than we see at home, and they have the tints and texture of youth.
The landscape and the mountains look young, because they look unfinished, like a house half up. The workmen have but just knocked off work to go to dinner; their great trenches, their freshly opened quarries, their huge dumps, their foundations, their cyclopean masonry, their half-finished structures breaking the horizon-lines, their square gashes through the mountains,--all impress the eyes of a traveler from the eastern part of the continent, where the earth-building and earth-carving forces finished their work ages ago.
II
Hence it is that when one reaches the Grand canon of the Colorado, if he has kept his eyes and mind open, he is prepared to see striking and unusual things. But he cannot be fully prepared for just what he does see, no matter how many pictures of it he may have seen, or how many descriptions of it he may have read.
A friend of mine who took a lively interest in my Western trip wrote me that he wished he could have been present with his kodak when we first looked upon the Grand Canon. Did he think he could have got a picture of our souls? His camera would have shown him only our silent, motionless forms as we stood transfixed by that first view of the stupendous spectacle. Words do not come readily to one"s lips, or gestures to one"s body, in the presence of such a scene.
One of my companions said that the first thing that came into her mind was the old text, "Be still, and know that I am G.o.d." To be still on such an occasion is the easiest thing in the world, and to feel the surge of solemn and reverential emotions is equally easy; is, indeed, almost inevitable. The immensity of the scene, its tranquillity, its order, its strange, new beauty, and the monumental character of its many forms--all these tend to beget in the beholder an att.i.tude of silent wonder and solemn admiration. I wished at the moment that we might have been alone with the glorious spectacle,--that we had hit upon an hour when the public had gone to dinner. The smoking and joking tourists sauntering along in apparent indifference, or sitting with their backs to the great geologic drama, annoyed me. I pity the person who can gaze upon the spectacle unmoved. Some are actually terrified by it. I was told of a strong man, an eminent lawyer from a Western city, who literally fell to the earth at the first view, and could not again be induced to look upon it. I saw a woman p.r.o.ne upon the ground near the brink at Hopi Point, weeping silently and long; but from what she afterward told me I know it was not from terror or sorrow, but from the overpowering gladness of the ineffable beauty and harmony of the scene. It moved her like the grandest music. Her inebriate soul could find relief only in tears.
Harriet Monroe was so wrought up by the first view that she says she had to fight against the desperate temptation to fling herself down into the soft abyss, and thus redeem the affront which the very beating of her heart had offered to the inviolable solitude. Charles Dudley Warner said of it, "I experienced for a moment an indescribable terror of nature, a confusion of mind, a fear to be alone in such a presence."
It is beautiful, oh, how beautiful! but it is a beauty that awakens a feeling of solemnity and awe. We call it the "Divine Abyss." It seems as much of heaven as of earth. Of the many descriptions of it, none seems adequate. To rave over it, or to pour into it a torrent of superlatives, is of little avail. My companion came nearer the mark when she quietly repeated from Revelation, "And he carried me away in the spirit to a great and high mountain, and shewed me that great city, the holy Jerusalem." It does, indeed, suggest a far-off, half-sacred antiquity, some greater Jerusalem, Egypt, Babylon, or India. We speak of it as a scene: it is more like a vision, so foreign is it to all other terrestrial spectacles, and so surpa.s.singly beautiful.