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diff --git a/4759.txt b/4759.txt new file mode 100644 index 0000000..05da987 --- /dev/null +++ b/4759.txt @@ -0,0 +1,1316 @@ +Project Gutenberg's The Romance of Rubber, by United States Rubber Company + +This eBook is for the use of anyone anywhere at no cost and with +almost no restrictions whatsoever. You may copy it, give it away or +re-use it under the terms of the Project Gutenberg License included +with this eBook or online at www.gutenberg.org + + +Title: The Romance of Rubber + +Author: United States Rubber Company + +Editor: John Martin + +Posting Date: September 4, 2009 [EBook #4759] +Release Date: December, 2003 +First Posted: March 13, 2002 + +Language: English + +Character set encoding: ASCII + +*** START OF THIS PROJECT GUTENBERG EBOOK THE ROMANCE OF RUBBER *** + + + + +Produced by Robert Rowe, Charles Franks and the Online +Distributed Proofreading Team. HTML version by Al Haines. + + + + + + + + + + +THE ROMANCE OF RUBBER + +EDITED BY JOHN MARTIN + + +EDITOR OF JOHN MARTIN'S BOOK THE CHILD'S MAGAZINE + + +PUBLISHED BY UNITED STATES RUBBER COMPANY + + + + +CONTENTS + + 1 THE DISCOVERY + 2 CHARLES GOODYEAR + 3 THE HEVEA TREE + 4 WICKHAM'S IDEA + 5 PLANTATION DEVELOPMENT + 6 PLANTATION LIFE + 7 HARVESTING THE RUBBER + 8 A LAST WORD + + + + +AN INTRODUCTORY NOTE + +We have undertaken to print this booklet, telling you how rubber +is grown, gathered, and then made useful, for this reason: + +The United States Rubber Company, as the largest rubber +manufacturer in the world, wants the coming generations of our +country to have some understanding of the importance of rubber in +our every day life. + +We hope to interest and inform you. We believe the rubber industry +will be better off if the future citizens of our country know more +about it. + + + + +CHAPTER 1 + +THE DISCOVERY + + +If you were asked, "What did Columbus discover in 1492?" you would +have but one answer. But what he discovered on his second voyage +is not quite so easy to say. He was looking for gold when he +landed on the island of Hayti on that second trip. So his eyes +were blind to the importance of a simple game which he saw being +played with a ball that bounced by some half-naked Indian boys on +the sand between the palm trees and the sea. Instead of the +coveted gold, he took back to Europe, just as curiosities, some of +the strange black balls given him by these Indian boys. He learned +that the balls were made from the hardened juice of a tree. + +The little boys and girls of Spain were used to playing with balls +made of rags or wool, so you may imagine how these bouncing balls +of the Indians must have pleased them. But the men who sent out +this second expedition gave the balls little thought and certainly +no value. Since Columbus brought back no gold, he was thrown into +prison for debt, and he never imagined that, four hundred years +later, men would turn that strange, gummy tree juice into more +gold than King Ferdinand and Queen Isabella and all the princes of +Europe ever dreamed of. + +In the next century after Columbus's travels the Portuguese +founded the colony of Brazil on the continent of South America. +Their settlements were near the coast and they did not begin to +explore the great Amazon region for a hundred years or so. The +journey down this great river--which Theodore Roosevelt took so +many years later--was first made by a Portuguese missionary, who +found the same kind of gummy tree juice as that of the West +Indies. But the natives along the Amazon had discovered that +besides being elastic it was waterproof, and they were making +shoes that would keep out water. You can picture a native boy +spilling some of this liquid on his foot, then covering it, as he +might with a mud pie, and when it dried wiggling his toes to find +that, he had the first and perhaps the best fitting gum shoe that +ever was made. + +Little by little samples of this new substance found their way to +Europe. It was another hundred years before thoughtful men +believed it worth while to investigate this gum. In 1731 the Paris +Academy of Science sent some explorers to learn about it. One of +these Frenchmen, La Condamine, wrote of a tree called "Hevea"[1] +"There flows from this tree a liquor which hardens gradually and +blackens in the air." He found the people of Quito waterproofing +cloth with it, and the Amazon Indians were making boots which, when +blackened in smoke, looked like leather. Most interesting of all, +they coated bottle-shaped moulds, and when the gum had hardened they +would break the mould, shaking the pieces out of the neck, leaving +an unbreakable bottle that would hold liquids. + + +[1] Hevea is pronounced Hee'-vee-uh. Caoutchouc is +pronounced koo'-chook. + + +It was not long afterwards that Lisbon began to import some of +these crudely fashioned articles, and it is said that in 1755 the +King of Portugal sent to Brazil several pairs of his boots to be +waterproofed. A few years later the Government of Para, Brazil, +sent him a full suit of rubber clothes. For all that, this elastic +gum was for the most part only a curiosity, and few people knew +there was such a thing. + +About the year 1770, a black, bouncing ball of caoutchouc, as the +Indians called the gum, after many travels found its way to +England, and Priestley, the man who gave us oxygen, learned that +it would rub out pencil marks. Then and there he named it what you +have probably guessed long before this: "rub-ber." Nearly every +language except English uses in place of the word rubber some form +of the native Word "caoutchouc," which means "weeping tree." After +Priestley's discovery, a one-inch "rubber" sold for three +shillings, or about seventy-five cents, but artists were glad to +pay even that price, because their work was made so much easier. + + + + +CHAPTER 2 + +CHARLES GOODYEAR + + +In 1800 Brazil was the only country manufacturing rubber articles, +and her best market soon proved to be North America. Probably the +first rubber this country saw was brought to New England in +clipper ships as ballast in the form of crude lumps and balls. +Rubber shoes, water-bottles, powder-flasks, and tobacco-pouches +found buyers in the American ports, but rubber shoes were most in +demand. + +Soon some Americans began to import raw rubber and to manufacture +rubber goods of their own, and in the old world a Scotchman named +Macintosh found a way of waterproofing cloth by spreading on it a +thin coating of rubber dissolved in coal naphtha. Many people +still refer to raincoats as mackintoshes. Rubber clothing shared +favor with rubber shoes, but its popularity was short-lived for it +did not wear well and was almost as sensitive to temperature as +molasses and butter. The rubber shoes and coats get hard and stiff +in winter and soft and sticky in summer. A man wearing a pair of +rubber overalls who sat down too near a warm stove soon found that +his overalls, his chair and himself were stuck fast together. The +first rubber coats became so stiff in cold weather that when you +took one off you could stand it up in the middle of the floor and +leave it, for it would stand like a tent until the rubber thawed +out, and when thawed it was almost as uncomfortable as is fly-paper +to the fly. + +One day Charles Goodyear, a Connecticut hardware merchant of an +inventive turn of mind, went to a store to buy a life preserver. +He could find only imperfect ones, but they drew his attention to +the study of rubber, and presently he was thinking of it by day +and dreaming of it by night. Rubber became a passion with him. He +felt sure some way could be found to make it firm yet flexible +regardless of temperature, and for ten years he experimented with +different mixtures and processes, hoping to find the right one. So +intent was he on his search that he found time for nothing else. +Due to neglect his business went to pieces and he became very +poor. + +Finally, in 1839, when he was on the point of giving up in +despair, he accidentally came upon the solution. He was +experimenting in his kitchen, a place which, through lack of +funds, he was often forced to use as a laboratory. Part of a +mixture of rubber, sulphur and other chemicals, with which he was +working, happened to drop on the top of the stove. It lay there +sizzling and charring until the odor of the burning rubber called +his attention to it. As he stooped to scrape it off the stove he +gave a start of wonder as he noted that a change had come over the +rubber during its brief contact with the stove. + +To his surprise the mixture had not melted, but had flattened out +in the shape of a silver dollar. When it had cooled enough to be +handled, he found that it bent and stretched easily, without +cracking or breaking, and that it always snapped back to its +original shape. Strangest of all, it was no longer sticky. +Apparently half the problem was solved. Whether his new mixture +would stand the cold he had yet to find out, so he nailed it on +the outside of the door and went to bed. Probably he slept but +little and was up early. At any rate he found the rubber +unaffected by the cold. + +Then he knew that he had made a real discovery and he named the +process "vulcanizing" after Vulcan, the Roman god of fire. +"Vulcanizing" means mixing pure rubber with certain chemicals and +then applying heat. On this process, which is by no means simple, +the great rubber business of the world has been established. +Practically everything made of rubber, or of which rubber is a +part, has to go through the vulcanizing process, whether it is a +pair of Keds, a tire, a fruit jar ring, or a doormat. + +So many people had been deceived by previous rubber ventures that +Goodyear had great trouble in finding anyone with enough faith to +invest money in his discovery. It was some time before he was able +to take out the first of the more than sixty patents which he was +granted during his lifetime for applying his process to various +uses. Under these patents he licensed several factories to use the +process in the manufacture of rubber goods, but required them to +stamp all goods with the words "Goodyear patent." Scores of +companies have since used the name Goodyear, but the only +factories that he licensed which are now in existence are parts of +the United States Rubber Company. + +Goodyear often had to defend his patents in court. In the most +famous of these suits, he was defended by Daniel Webster and +opposed by Rufus Choate, so that we see interwoven in the story of +rubber the names of two of the greatest statesmen this country has +produced. + + + + +CHAPTER 3 + +THE HEVEA TREE + + +For the very first of the rubber story we may thank a little +wood-boring beetle, and the way nature has of helping her children to +protect themselves. + +The thistle of the meadow is as safe from hungry cattle as though +fenced in by barbed wire. A cow must be starving that would care +to flavor her luncheon with the needles that the thistle bears. +The common skunk cabbage would make a tempting meal for her after +a winter of dry feeding, had not Nature given it an odor that +disgusts even a spring-time appetite. The milkweed welcomes the +bees and flies that help to distribute her pollen where she wants +it spread, but she has her own way of punishing the useless +thieves that trespass up her stalk. Wherever the hooks of an +insect's feet pierce her tender skin, she pours out a milky juice +to entangle its feet and body, and it is a lucky bug that succeeds +in escaping before this juice hardens, and holds him a prisoner +condemned to die. + +All over the world there are plants with the same ability that the +milkweed has, but it is especially true of certain trees and vines +of the tropics. As soon as the little beetle begins to bore into +the bark of one of these trees, there pours out a sticky, milky +fluid that kills the insect at once. If this were all, the wound +would remain open, ready for the next robber who came along. In +order that the break may be healed, a cement is necessary, but not +a hard, unyielding one, for that would crumble away with the +motion of the tree in the wind. + +So with Mother Nature's perfection in doing things, the very plant +juice that has done duty as a poison is hardened into an elastic +stopper, with the result that, no matter how far the tree may sway +and tug at the wound, the filling gives and stretches, true to the +task it has to perform. + +This was the juice the crafty savage induced the tree to give up. +Wherever the bark was cut, the fluid poured forth to heal the +break and hardened like blood on a cut finger. The native caught +it while it was still soft and applied it to his simple needs. + +This juice is not the sap of the rubber tree. Sap, which is the +life-blood of the tree, flows through the wood, but the juice we +are describing is contained in the inner bark, a thin layer +directly below the outer bark. + +Scientific men call this juice latex. It is like milk in three +ways: it is white, it contains tiny particles that rise to the top +like cream, and it spoils quickly. + +The particles in cow's milk are full of fats which make it good +for us to drink. But a rubber tree's milk has tiny atoms of rubber +and resin and other things, and it took time to discover which of +the vines and trees was the prize milker of the tropics and gave +the largest amount of pure rubber. Finally, the Hevea, the very +tree the Frenchman wrote about, proved to be the best, and, +although by no means the only rubber tree of commercial value, it +is acknowledged the greatest of rubber trees. + +The Hevea tree grows sixty feet tall, and when full grown is eight +or ten feet around. It rises as straight as an elm, with high +branching limbs and long, smooth oval leaves. Sprays of pale +flowers blossom upon it in August, followed in a few months by +pods containing three speckled seeds which look like smooth, +slightly flattened nutmegs. When the seeds are ready to drop the +outer covering of the pod bursts with a loud report, the seeds +shooting in all directions. + +This is Nature's clever scheme to spread the Hevea family. The +tree grows wild in the hot, damp forests of the Amazon valley and +in other parts of South America that have a similar climate. The +ideal climate for the rubber tree is one which is uniform all the +year round, from eighty-nine to ninety-four degrees at noon, and +riot lower than seventy degrees at night. The Amazon country has a +rainy season which lasts half the year, though the other season is +by no means a dry one, and so for half the time the jungles are +flooded. + +These rubber storehouses had been growing for thousands of years +in the Amazon jungle with their wealth securely sealed up in their +bark, the peck of a bird, the boring of a beetle, or the scratch +of a climbing animal being the only draft upon their treasure. The +trees around the mouth of the river supplied whatever was needed +for the little manufacturing that was at first done. But the +discovery that made a universal use for rubber changed all this. +Brazil was surprised to find what great treasure her forests +contained. Large rubber areas were found a thousand miles up the +river and she began in a serious way to develop a large crude +rubber business. + +Less than twenty years ago Brazil produced practically all the +rubber used in the world. But to-day she furnishes less than +one-tenth of the world's supply. How Brazil, possessing in her vast +forests millions of rubber trees of the finest quality, has been +forced by unfavorable conditions to permit the Far East to sweep +from her in this short time the crude rubber supremacy of the +world is one of the most unusual chapters in modern industrial +history. + + + + +CHAPTER 4 + +WICKHAM'S IDEA + + +The story of the success of the East Indies in wresting the crude +rubber supremacy from Brazil, begins with an Englishman named +Wickham, who might be called the father of plantation rubber. + +Wickham, who had spent some years in South America, understood the +difficulties of gathering rubber in the jungles. He believed that +if rubber could be cultivated it might prove a good crop on the +coffee plantations in India which a blight had recently rendered +valueless for coffee. What a strange fact it is that this blight +gave Brazil a chance to go into coffee growing, and that while +Brazil was losing the rubber supremacy to the Far East, the Far +East at about the same time was surrendering the leadership in +coffee to Brazil. The latter now holds first place in coffee +growing as firmly as does the Far East in rubber growing. + +Wickham saw that there were difficulties that would prevent the +gathering of wild rubber from keeping pace with the growing +demand. Although millions of rubber trees still stood untouched in +the Brazilian forests, only those trees near the river banks could +be tapped because of the impossibility of getting the rubber out +of the dense vegetation. Life in the jungle was dangerous and +lonely, and therefore rubber gatherers were not easy to find. They +were compelled to work far from their families and friends, and in +constant danger from wild beasts, reptiles and death-bearing +fevers. It is no wonder that rubber obtained in this way came to +be known as "wild rubber." Moreover, transporting the crude +product through the jungles was hard and expensive and the rubber +obtained under these conditions was not always so clean or high in +quality as might be wished. + +"If rubber trees grow from the seeds which nature scatters in the +jungle," said Wickham to himself, "why should they not grow from +seeds put into the ground by hand?" + +"If rubber trees could be raised from seed, they could be planted +in the open in rows where they could easily be tended and tapped, +and the rubber gathered quickly and safely. Instead of having to +brave the dangerous jungles, men could plant and cultivate rubber +in spots of their own choosing so long as they chose places where +the climate was right." + +For many years people only laughed at Wickham's great idea, but +like Goodyear he had faith enough to persevere. While in Brazil he +planted some rubber seeds to see what would happen. The seeds DID +grow, and the book which Wickham wrote about his idea and his +experiments finally came into the hands of Sir Joseph Hooker, the +Director of the Botanical Gardens in Kew, near London. So +interested did he become that he called Wickham's plan to the +attention of the Government of India, and finally Wickham was +commissioned to take a cargo of rubber seeds to England, so that +his idea might be tried out. + +This commission was more difficult than one might think, and all +of Wickham's faith and perseverance were needed to carry it out. +Indeed for a time it seemed hopeless, principally because the +seeds so quickly dry up and lose their vitality that they must be +planted very soon after being gathered. + +But Wickham watched his opportunity, and finally he was able to +charter a ship in the name of the Indian Government. About a third +of the way up the Amazon River he placed in her hold several +thousand carefully packed seeds of the Hevea Braziliensis, or +rubber tree. Let Wickham, himself, tell how he surmounted the next +difficulty: + +"We were bound to call in at the city of Para as the port of +entry, in order to obtain clearance papers for the ship before we +could go to sea. Any delay would have rendered my precious freight +quite valueless and useless. But again fortune favored. I had a +'friend at court' in the person of Consul Green, who went himself +with me to call on the proper official, and supported me as I +presented to His Excellency 'my difficulty and anxiety, being in +charge of, and having on board a ship anchored out in the stream, +exceedingly delicate botanical specimens, especially designated +for delivery to Her Britannic Majesty's own Royal Garden of Kew. +Even while doing myself the honor of thus calling on His +Excellency, I had given orders to the captain of the ship to keep +up steam, having ventured to trust His Excellency would see his +way clear to furnishing me with immediate dispatch. An interview +most polite, full of mutual compliments in the best Portuguese +manner, enabled us to get under way as soon as the captain had got +the dinghy hauled aboard." + +Can you imagine Wickham's sigh of relief as his vessel, with its +freight of perishable treasure, steamed out of port, and began the +long journey to England? + + + + +CHAPTER 5 + +PLANTATION DEVELOPMENT + + +The transporting of the rubber seeds from the Brazilian forests to +England was only the first step in Wickham's project. The real +test was still to come. The seeds were planted in the famous +Botanical Gardens of Kew, and on August 12, 1876, the several +thousand seedlings which had been raised from them were packed in +special cases and shipped to Ceylon on the other side of the globe +for the final and most important stage of the experiment. + +How long the next five years must have seemed to the anxious +Wickham, for it was that long before the first rubber tree +flowered in the gardens at Heneratgoda, sixteen miles from +Colombo, where the trees had finally been planted. In this year, +1881, experiments in tapping began, and it was plain that +Wickham's dream was to be realized. + +From these few trees, so carefully tended in their youth, has +sprung the whole rubber industry of Ceylon and the Far East. +Wickham must indeed have been proud to see the plantations +spreading from Ceylon to Malaya, where rubber was eagerly taken up +by planters who were despairing of ever making a living out of +coffee, and later to Sumatra and Java and Borneo. To-day rubber +plantations cover an area of over 3,000,000 acres, with a yearly +output of almost 360,000 tons, or about ten times the average +yearly output of "wild rubber." + +There is a curious coincidence in the fact that Wickham got his +idea about planting rubber trees in India at about the same time +that men in America began to experiment with the horseless +carriage. You may never have stopped to think of it, but +mechanical experts say that without rubber pneumatic tires, +automobiles could never have become the fine, swift vehicles they +are. It was a wonderful thing that when in the early part of this +century the automobile industry suddenly burst forth with a demand +for rubber so great that Brazil could never have hoped to supply +it, there was found ready in the Far East, as a result of the +planting that had been done there, a supply that took care of the +sudden emergency. + +A little more than ten years ago American business men began to +take an interest in the rubber plantations. They have shown +characteristic energy in the field, and the greatest single rubber +plantation in the world is owned by an American company, the +United States Rubber Company. This plantation is on the island of +Sumatra in the Dutch East Indies, one of the best governed +colonies in the East. On this island is an orchard of rubber +trees, as beautifully laid out and as well cared for as any +orchard of fruit trees in our own country. For seventy square +miles, an area as large as the District of Columbia, the orderly +ranks of trees fill the gently rolling landscape, every inch of +which is weeded as carefully as a garden. It takes twenty thousand +employees to care for the trees, which number more than 5,000,000. + +On this plantation the science of growing rubber trees has been +brought to a perfection known nowhere else in the world. Groups of +botanists, chemists and arboriculturists study constantly tree +diseases, methods of increasing the yield, and the other problems +of growing fine trees that will produce high grade rubber. Here, +by experiment and inspection, the secrets of the rubber tree are +being brought to light, so much so that growers look to this +plantation for leadership in methods of rubber culture. This great +project so far from American soil and in a field so new gives a +thrill of pride to the Americans visiting Sumatra on their way +around the world. + + + + +CHAPTER 6 + +PLANTATION LIFE + + +The moist but very hot climate which rubber trees require is found +only in a zone around the world between the parallels of latitude +thirty degrees north to thirty degrees south of the equator. +Within this zone there have been found more than 350 rubber +bearing trees, shrubs and vines. For this reason this zone is +called the Rubber Belt. As most of the rubber used commercially is +gathered from trees growing within a zone extending from ten +degrees north to ten degrees south of the equator, this latter +zone is sometimes called the Inner Rubber Belt. + +If you will trace this belt on a map of the world you will see +that it includes the Amazon region which produces more than +three-quarters of the wild rubber used in manufacturing. Most of South +America's wild rubber is obtained from Brazil, the remainder from +Bolivia, Peru and Venezuela. Now continue the belt across the +Atlantic Ocean to Africa, where you will strike the Belgian Congo +which produces a small quantity of wild rubber. Partly owing to +the careless manner of gathering and partly to the fact that it is +not originally of as good quality as Brazilian rubber, Congo +rubber is not as valuable for manufacturing as Brazilian. Then +complete the circle by following the belt across the Indian Ocean +to Ceylon and the East Indies which contain the great rubber +plantations where most of the rubber used to-day comes from. + +To establish a rubber plantation requires very careful planning. +The choice of a site is of first importance, for the planter must +find a locality having a moist climate with an evenly distributed +rain-fall where the temperature throughout the year does not fall +below seventy degrees Fahrenheit, and where there is protection +from the wind. There must also be, of course, access to a steady +labor supply and a convenient shipping port. As the proper climate +is a tropical one, there is usually dense jungle to be cleared +away. Immense trees and thick bushes, rank straggling weeds and +vines form an almost impenetrable jungle. To turn such a place +into a garden spot means a genuine battle against jungle +conditions. But gradually trees, shrubs and undergrowth are torn +out and burned, laying bare the rich soil ready for the plow of +the planter. + +Meantime the rubber seedlings have been sprouted in nurseries. +When the ground is ready they are carefully taken up and +transplanted to the holes which have been made for them in the +field where they are to be permanently planted. + +Though the growth of the trees is very rapid, sometimes as much as +twenty feet in the first year, there are five years of anxious +waiting and guarding against winds and disease before they are +ready to be tapped and so begin to reward the planters. At first +the yield of a tree is only about one-half pound of rubber a year, +and this increases so slowly that it is many years before it +amounts to as much as ten pounds a year. The highest yield ever +recorded was given by one of the original trees set out in the +gardens at Heneratgoda, which gave ninety-six and one-half pounds +in one year. + +How different is life on the rubber plantations of to-day from the +life of the gatherer of wild rubber in the jungle. In Brazil, the +solitary workers have to plunge at dawn into the perilous forest, +with its lurking wildcats and jaguars, its coiled and creeping +serpents. The dwellings are flimsy huts, food is scarce and +expensive, and disease and fever cause many deaths. + +On the other hand, workers on a well-managed plantation live in +comfortable houses in healthy surroundings and are supplied with +plenty of good food. In fact the conditions are so much better +than generally prevail among natives in the Orient that work on a +plantation is considered more desirable than most other forms of +labor. The unmarried men live in barracks, but the men with +families have individual houses with garden plots adjoining. Big +kitchens prepare and cook the food in the best native style. +Schools for the children, recreation centers for old and young, +and hospitals to care for the sick, are all parts of the +plantation organization. + +In erecting hospitals and caring for the health of its plantation +workers, as in other branches of the rubber industry, America has +taken the lead. So well is this recognized, that the Dutch +Government has awarded a medal to the United States Rubber Company +for the efficiency and completeness of its plantation hospital, +which happens to be the largest private hospital in the East +Indies, having accommodations for nearly a thousand patients. + + + + +CHAPTER 7 + +HARVESTING THE RUBBER + + +It is a cheerful sight to see the workers, men and women, dressed +in all the colors of the rainbow, trooping out from their quarters +to begin the day's work. The tapping must be done early in the +day, for the latex or rubber juice stops flowing a few hours after +sunrise. + +When the trees reach eighteen inches in girth at a point eighteen +inches from the ground, they are ready for tapping. This growth is +usually attained when the trees are about five years old. + +In tapping, a narrow strip of bark is cut away with a knife, the +cut extending diagonally one-quarter of the way around the tree. +At each succeeding day's tapping the tapper widens the cut by +stripping off a sliver of bark one-twentieth of an inch in width.[2] +He must be careful not to cut into the wood of the tree, as such cuts +not only injure the tree but permit the sap to run into the latex +and spoil the rubber. When the tapper has made the proper gash in +the bark he inserts a little spout to carry the dripping latex to +a glass cup beneath. + + +[2] This method of tapping is shown on the front cover. + + +Later in the morning the workers make the rounds of the trees with +large milk cans, gathering the latex from the cups. When the cans +are full they are carried to a collecting station, called a +Coagulation Shed. It is as clean and well kept as a dairy. Here +the latex is weighed, and when each collector has been credited +with the amount he has brought, it is dumped into huge vats. + +The next step is to extract the particles of rubber from the latex +and to harden them. The jungle method of hardening rubber is to +dip a wooden paddle in the latex and smoke it over a fire of wood +and palm nuts.[3] It is a back-breaking process to cover the paddle +with layer after layer, until a good-sized lump, usually called a +"biscuit," is formed. The plantation method is a quicker and cleaner +one. Into the vats is poured a small quantity of acid, which causes +the rubber "cream" to coagulate and come to the surface. The +"coagulum," as it is called, is like snow-white dough. It is removed +from the vats and run in sheets through machines which squeeze out +the moisture and imprint on them a criss-cross pattern to expose as +large a surface as possible to the air. + + +[3] See picture, page 12. + + +These sheets of rubber are then hung in smoke houses and smoked +from eight to fourteen days in much the same way that we smoke +hams and bacon. After being dried in this way they are pressed +into bales or packed in boxes ready for shipment. + + + + +CHAPTER 8 + +A LAST WORD + + +It would be an adventure to follow a bale of plantation rubber as, +carefully boxed or wrapped in burlap, it starts on its long and +picturesque journey. Bullock carts, railroads, boats and steamers +bring it at last to one of the world markets, Singapore, Colombo, +London, Amsterdam or New York, where it is bought by dealers, and +then sold to factories which make rubber goods. + +An equally fascinating story might be told of its progress through +the factory, how it is kneaded and rolled, mixed with chemicals, +rubbed into fabrics, baked in ovens, and finally emerges as any +one of the tens of thousands of articles that are made wholly or +partly from rubber. + +Rubber manufacturing is peculiarly an American industry. South +America gave us the original rubber trees, and the one man who, +more than any other, was responsible for making rubber useful was +the American, Charles Goodyear. To-day, two-thirds of the entire +output of rubber is sold to the United States, whose manufactured +rubber goods set the standard for the whole world. + +In spite of the wonders which rubber has already accomplished, and +the adventures, which have colored its history, only the beginning +of the romance of rubber has been told. The plantation industry is +still in its infancy, and experiments are constantly being made to +determine the best methods of planting, the most fruitful number +of trees to the acre, the most advantageous way of tapping. In the +laboratories of the great rubber manufacturers, scientists are at +work improving old methods of using rubber and devising new ones. + +Rubber is a substance of so many important characteristics that +its uses are countless. It is used for certain purposes because it +stretches, for others because it is airtight and watertight, for +others because it is a non-conductor of electricity, for others +because it is shock-absorbing, and for others because it is +adhesive. + +It is on rubber that infants cut their teeth; after all the teeth +are gone old age makes use of rubber in plates for false teeth. +Ten million motorists and other millions of cyclists in the United +States ride on rubber tires that are durable, noiseless and +airtight. Balloons of rubber float aloft, and huge submarines plow +their routes beneath the ocean's surface propelled by electricity +stored in great rubber cells. Sheathed in rubber, the lightning +makes a peaceful way through our homes, offices and factories, +furnishing light and telephone service. Divers sink out of sight +beneath the waves in rubber suits. Rubber air-brake hose on +railroad trains makes safe the travel of a nation, air-drill hose +rivets our ships, fire hose protects the properly in city and town +and garden hose brings nourishment to our growing plants. Rubber +clothing protects against storm and rubber footwear guards us +against cold and wet. Tennis balls and golf balls and rubber-cored +baseballs give healthful sport to the millions. In hospitals and +medical work the uses of rubber are without number. + +To select the most important use to which rubber is put would be +difficult. One student of the subject says: + +"Of all the applications of rubber, that of packing for the steam +engine and connecting machinery appears to have been the most +important, as it has been an essential condition of the +development and extended use of steam as a motive power." + +Even as you read this, rubber may be in the act of performing some +new magic, some fresh service to mankind. And who knows which one +of us will, in the years to come, write a chapter in the story of +rubber more thrilling than we are able to imagine to-day! + + + + +A REVIEW AND QUESTIONS + + +1. Who was the first white man to see rubber? + +2 What use were the natives making of it? + +3. Who was the first white man to go up the Amazon? + +4. Of what nationality were the explorers who were sent to find +out about rubber? + +5. Who was the first European monarch to use rubber? + +6. How did rubber get its name? + +7. How did rubber first come to the United States? + +8. Why are some raincoats called mackintoshes? + +9. Why is Charles Goodyear called "the father of the rubber +industry"? + +10. What is "vulcanizing"? + +11. What famous men fought in court over the patents? + +12. What has a beetle to do with rubber? + +13. Name and describe the liquid in which rubber is found? + +14. In what part of the tree is this liquid found? + +15. What is the difference between this liquid and the sap of a +tree. + +16. Name and describe the best rubber tree. + +17. How are the seeds spread? + +18. What climate is needed for rubber trees? + +19. Which country formerly supplied all the rubber used in the +world? + +20. Who first thought of growing rubber trees on plantations? + +21. Why did he think it was better to grow them on plantations? + +22. How were the rubber seeds taken from Brazil? + +23. On what tropical island was the first plantation started? + +24. Where are rubber plantations found to-day? + +25. What is the yearly output of the plantations? + +26. What was the curious coincidence in the growth of the +plantation industry? + +27. What is meant by the Rubber Belt around the world? + +28. What countries are the principal producers of rubber? + +29. Why is the worker on a plantation better off than one who +lives in the jungle? + +30. When are trees ready to be tapped? + +31. How are trees tapped? + +32. How is rubber "cured" in the jungle? + +33. How is it "cured" on the plantation? + +34. Why is rubber manufacturing peculiarly an American industry? + + + + +RUBBER PRODUCTS + + +There are so many different articles made in whole or part of +rubber that it would not be possible to list them all on this +page. The following list of just a few of the thousands of rubber +products made by the United States Rubber Company, the oldest and +largest rubber organization in the world, will help you to think +of many other articles made of rubber. + +TIRES + +"U.S." Royal Cord Automobile Tires. + +"U.S." Mono-Twin Truck Tires. + +"U.S." Traxion Tread Motorcycle Tires. + +"U.S." Bicycle Tires. + +"U.S." Royal Tubes for Automobile Tires. + +CLOTHING + +Raynster Raincoats. + +Naugahyde Belts for Men, Women and Children. + +Bathing Caps and Suits. + +FOOTWEAR + +Keds, the Standard Canvas Rubber-Soled Shoes. + +"U.S." Boots. + +"U.S." Arctics and Gaiters. + +"U.S." Rubbers. + +HARD RUBBER GOODS + +Battery Jars. + +Radio Parts. + +Dye Sticks. + +HOUSEHOLD + +Hot-water Bags. + +Rubber Gloves. + +Ice Caps. + +Tubing and Sheeting. + +Nursing Bottle Nipples. + +Toys. + +Fruit Jar Rubbers. + +MECHANICAL GOODS + +"U.S." Rainbow Packing. + +"U.S." Rainbow Transmission Belting. + +"U.S." Elevator and Conveyor Belts. + +"U.S." Hose for all purposes, including Garden, Steam, Suction, +Water, Fire, Oil, Irrigation, etc. + +Paracore Insulated Wire and Cable. + +Moulded Goods in thousands of varieties, as, for example, Washers, +Gaskets, Plumbers' Rubber Goods, Drainboard Mats, Bath Mats, etc. + +"U.S." Tile and Sheet Flooring. + +SUNDRIES + +Naugahyde Traveling Bags. + +"U.S." Royal Golf Balls. + +Balloons and Balloon Fabrics. + + + + + +NOTICE TO TEACHERS + + +These booklets are intended for presentation to your pupils. A +full supply will be sent to you, free of charge, if you will +indicate the number of students in your class. + +Please address + + Educational Department + United States Rubber Company + 1790 BROADWAY + New York City + + + + + + + + + +End of the Project Gutenberg EBook of The Romance of Rubber, by +United States Rubber Company + +*** END OF THIS PROJECT GUTENBERG EBOOK THE ROMANCE OF RUBBER *** + +***** This file should be named 4759.txt or 4759.zip ***** +This and all associated files of various formats will be found in: + https://www.gutenberg.org/4/7/5/4759/ + +Produced by Robert Rowe, Charles Franks and the Online +Distributed Proofreading Team. 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